10.0-base merge

117 files changed, 10632 insertions, 397 deletions

diff --git a/mysql-test/r/alter_table.result b/mysql-test/r/alter_table.result
index b2cfd079ff5..b6e99952c23 100644
--- a/mysql-test/r/alter_table.result
+++ b/mysql-test/r/alter_table.result
@@ -415,7 +415,7 @@ alter table t1 drop key a;
 drop table t1;
 CREATE TABLE T12207(a int) ENGINE=MYISAM;
 ALTER TABLE T12207 DISCARD TABLESPACE;
-ERROR HY000: Table storage engine for 'T12207' doesn't have this option
+ERROR HY000: Storage engine MyISAM of the table `test`.`T12207` doesn't have this option
 DROP TABLE T12207;
 create table t1 (a text) character set koi8r;
 insert into t1 values (_koi8r'ÔÅÓÔ');
@@ -978,7 +978,7 @@ SHOW CREATE TABLE `tt+2`;
 Table	Create Table
 tt+2	CREATE TEMPORARY TABLE `tt+2` (
   `c1` int(11) DEFAULT NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1
 DROP TABLE   `tt+1`, `tt+2`;
 CREATE TABLE `#sql1` (c1 INT);
 CREATE TABLE `@0023sql2` (c1 INT);
@@ -1015,12 +1015,12 @@ SHOW CREATE TABLE `#sql2`;
 Table	Create Table
 #sql2	CREATE TEMPORARY TABLE `#sql2` (
   `c1` int(11) DEFAULT NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1
 SHOW CREATE TABLE `@0023sql1`;
 Table	Create Table
 @0023sql1	CREATE TEMPORARY TABLE `@0023sql1` (
   `c1` int(11) DEFAULT NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1
 DROP TABLE `#sql2`, `@0023sql1`;
 DROP TABLE IF EXISTS t1;
 DROP TABLE IF EXISTS t2;
@@ -1340,3 +1340,43 @@ rename table t2 to t1;
 execute stmt1;
 deallocate prepare stmt1;
 drop table t2;
+CREATE TABLE t1 (
+id INT(11) NOT NULL,
+x_param INT(11) DEFAULT NULL,
+PRIMARY KEY (id)
+);
+ALTER TABLE t1 ADD COLUMN IF NOT EXISTS id INT,
+ADD COLUMN IF NOT EXISTS lol INT AFTER id;
+Warnings:
+Note	1060	Duplicate column name 'id'
+ALTER TABLE t1 ADD COLUMN IF NOT EXISTS lol INT AFTER id;
+Warnings:
+Note	1060	Duplicate column name 'lol'
+ALTER TABLE t1 DROP COLUMN IF EXISTS lol;
+ALTER TABLE t1 DROP COLUMN IF EXISTS lol;
+Warnings:
+Note	1091	Can't DROP 'lol'; check that column/key exists
+ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
+ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
+Warnings:
+Note	1061	Duplicate key name 'x_param'
+ALTER TABLE t1 MODIFY IF EXISTS lol INT;
+Warnings:
+Note	1054	Unknown column 'lol' in 't1'
+DROP INDEX IF EXISTS x_param ON t1;
+DROP INDEX IF EXISTS x_param ON t1;
+Warnings:
+Note	1091	Can't DROP 'x_param'; check that column/key exists
+CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
+CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
+Warnings:
+Note	1061	Duplicate key name 'x_param1'
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL,
+  `x_param` int(11) DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  KEY `x_param1` (`x_param`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+DROP TABLE t1;
diff --git a/mysql-test/r/alter_table_trans.result b/mysql-test/r/alter_table_trans.result
index 3dd5c00d3d8..6e034e47e76 100644
--- a/mysql-test/r/alter_table_trans.result
+++ b/mysql-test/r/alter_table_trans.result
@@ -2,5 +2,5 @@ drop table if exists t1,t2;
 CREATE TABLE t1 (a INT, INDEX(a)) engine=innodb;
 ALTER TABLE t1 RENAME TO t2, DISABLE KEYS;
 Warnings:
-Note	1031	Table storage engine for 't1' doesn't have this option
+Note	1031	Storage engine InnoDB of the table `test`.`t1` doesn't have this option
 DROP TABLE t2;
diff --git a/mysql-test/r/bug13633383.result b/mysql-test/r/bug13633383.result
index 89b522724f9..3b533f89df2 100644
--- a/mysql-test/r/bug13633383.result
+++ b/mysql-test/r/bug13633383.result
@@ -4,18 +4,18 @@
 CREATE TABLE t1 (
 `a` int(11) DEFAULT NULL,
 `col432` bit(8) DEFAULT NULL,
-`col433` multipoint DEFAULT NULL,
-`col434` polygon DEFAULT NULL,
+`col433` geometry DEFAULT NULL,
+`col434` geometry DEFAULT NULL,
 `col435` decimal(50,17) unsigned DEFAULT NULL,
 `col436` geometry NOT NULL,
 `col437` tinyblob NOT NULL,
-`col438` multipolygon DEFAULT NULL,
+`col438` geometry DEFAULT NULL,
 `col439` mediumblob NOT NULL,
 `col440` tinyblob NOT NULL,
 `col441` double unsigned DEFAULT NULL
 );
 CREATE TABLE t2 (
-`a` multipoint DEFAULT NULL,
+`a` geometry DEFAULT NULL,
 `col460` date DEFAULT NULL,
 `col461` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
 `col462` date NOT NULL,
@@ -31,7 +31,7 @@ CREATE TABLE t3 (
 `col579` bit(38) NOT NULL,
 `col580` varchar(93) NOT NULL,
 `col581` datetime DEFAULT NULL,
-`col583` multipolygon DEFAULT NULL,
+`col583` geometry DEFAULT NULL,
 `col584` bit(47) NOT NULL
 );
 set session sort_buffer_size= 32768;
diff --git a/mysql-test/r/cache_temporal_4265.result b/mysql-test/r/cache_temporal_4265.result
new file mode 100644
index 00000000000..1b4b3c2c4aa
--- /dev/null
+++ b/mysql-test/r/cache_temporal_4265.result
@@ -0,0 +1,10 @@
+create table t1 (a date);
+insert t1 values ('2000-01-02'), ('2001-02-03'), ('2002-03-04');
+set debug_dbug='d,str_to_datetime_warn';
+select * from t1 where a > date_add('2000-01-01', interval 5 day);
+a
+2001-02-03
+2002-03-04
+Warnings:
+Note	1003	2000-01-01
+drop table t1;
diff --git a/mysql-test/r/cast.result b/mysql-test/r/cast.result
index 23417b16698..31f1d57f916 100644
--- a/mysql-test/r/cast.result
+++ b/mysql-test/r/cast.result
@@ -268,37 +268,37 @@ cast(010203101112.121314 as datetime)
 0001-02-03 10:11:12
 select cast(120010203101112.121314 as datetime);
 cast(120010203101112.121314 as datetime)
-NULL
+0000-00-00 00:00:00
 Warnings:
 Warning	1292	Incorrect datetime value: '120010203101112.121314'
 select cast(cast(1.1 as decimal) as datetime);
 cast(cast(1.1 as decimal) as datetime)
-NULL
+0000-00-00 00:00:00
 Warnings:
 Warning	1292	Incorrect datetime value: '1'
 select cast(cast(-1.1 as decimal) as datetime);
 cast(cast(-1.1 as decimal) as datetime)
-NULL
+0000-00-00 00:00:00
 Warnings:
 Warning	1292	Incorrect datetime value: '-1'
 select cast('0' as date);
 cast('0' as date)
-NULL
+0000-00-00
 Warnings:
 Warning	1292	Incorrect datetime value: '0'
 select cast('' as date);
 cast('' as date)
-NULL
+0000-00-00
 Warnings:
 Warning	1292	Incorrect datetime value: ''
 select cast('0' as datetime);
 cast('0' as datetime)
-NULL
+0000-00-00 00:00:00
 Warnings:
 Warning	1292	Incorrect datetime value: '0'
 select cast('' as datetime);
 cast('' as datetime)
-NULL
+0000-00-00 00:00:00
 Warnings:
 Warning	1292	Incorrect datetime value: ''
 select cast('0' as time);
@@ -306,7 +306,7 @@ cast('0' as time)
 00:00:00
 select cast('' as time);
 cast('' as time)
-NULL
+00:00:00
 Warnings:
 Warning	1292	Truncated incorrect time value: ''
 select cast(NULL as DATE);
@@ -323,13 +323,13 @@ cast(NULL as BINARY)
 NULL
 select cast(cast(120010203101112.121314 as double) as datetime);
 cast(cast(120010203101112.121314 as double) as datetime)
-NULL
+0000-00-00 00:00:00
 select cast(cast(1.1 as double) as datetime);
 cast(cast(1.1 as double) as datetime)
 0000-00-00 00:00:01
 select cast(cast(-1.1 as double) as datetime);
 cast(cast(-1.1 as double) as datetime)
-NULL
+0000-00-00 00:00:00
 explain extended select cast(10 as double(5,2));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
diff --git a/mysql-test/r/create.result b/mysql-test/r/create.result
index 7c556354d2e..7e814283d32 100644
--- a/mysql-test/r/create.result
+++ b/mysql-test/r/create.result
@@ -31,9 +31,9 @@ Warnings:
 Note	1051	Unknown table 't1'
 Note	1051	Unknown table 't2'
 create table t1 (b char(0) not null, index(b));
-ERROR 42000: The used storage engine can't index column 'b'
+ERROR 42000: The storage engine MyISAM can't index column `b`
 create table t1 (a int not null,b text) engine=heap;
-ERROR 42000: The used table type doesn't support BLOB/TEXT columns
+ERROR 42000: Storage engine MEMORY doesn't support BLOB/TEXT columns
 drop table if exists t1;
 Warnings:
 Note	1051	Unknown table 't1'
@@ -1899,25 +1899,36 @@ create table t3 (a int) row_format=page;
 drop table t1,t2,t3;
 
 # -- End of Bug#45829
-# new table creation/renaming blocked if old encoded table present
-create table `t-1` (a int) engine=myisam;
-insert into `t-1` values (1);
+create table `#mysql50#t-1` (a int) engine=myisam;
+insert into `#mysql50#t-1` values (1);
 show tables;
 Tables_in_test
-t-1
-flush tables;
-convert table files in mysql 5.0 file name encoding
+#mysql50#t-1
+create table `t-1` (a int);
 show tables;
 Tables_in_test
 #mysql50#t-1
-create table `t-1` (a int);
-ERROR 42S01: Table '#mysql50#t-1' already exists
+t-1
+select * from `t-1`;
+a
+select * from `#mysql50#t-1`;
+a
+1
+drop table `t-1`;
 create table t1 (a int);
 alter table t1 rename `t-1`;
-ERROR 42S01: Table '#mysql50#t-1' already exists
+show tables;
+Tables_in_test
+#mysql50#t-1
+t-1
+drop table `t-1`;
+create table t1 (a int);
 rename table t1 to `t-1`;
-ERROR 42S01: Table '#mysql50#t-1' already exists
-drop table `#mysql50#t-1`, t1;
+show tables;
+Tables_in_test
+#mysql50#t-1
+t-1
+drop table `#mysql50#t-1`, `t-1`;
 
 End of 5.1 tests
 
diff --git a/mysql-test/r/date_formats.result b/mysql-test/r/date_formats.result
index 7f69fd1a5a4..3bbd25cbbcc 100644
--- a/mysql-test/r/date_formats.result
+++ b/mysql-test/r/date_formats.result
@@ -521,7 +521,7 @@ TIME_FORMAT("25:00:00", '%l %p')
 1 AM
 SELECT DATE_FORMAT('%Y-%m-%d %H:%i:%s', 1151414896);
 DATE_FORMAT('%Y-%m-%d %H:%i:%s', 1151414896)
-NULL
+1151414896
 Warnings:
 Warning	1292	Incorrect datetime value: '%Y-%m-%d %H:%i:%s'
 select str_to_date('04 /30/2004', '%m /%d/%Y');
diff --git a/mysql-test/r/ddl_i18n_koi8r.result b/mysql-test/r/ddl_i18n_koi8r.result
index 0d858424715..fbed2ac1565 100644
--- a/mysql-test/r/ddl_i18n_koi8r.result
+++ b/mysql-test/r/ddl_i18n_koi8r.result
@@ -734,7 +734,7 @@ ALTER DATABASE `mysqltest1` CHARACTER SET utf8 COLLATE utf8_unicode_ci ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `p1`(
+CREATE DEFINER=`root`@`localhost` PROCEDURE `p1`(
 INOUT ÐÁÒÁÍ1 CHAR(10),
 OUT ÐÁÒÁÍ2 CHAR(10))
 BEGIN
@@ -751,7 +751,7 @@ COLLATION(_utf8 'тек�т') AS c6,
 @@character_set_client AS c8;
 SET ÐÁÒÁÍ1 = 'a';
 SET ÐÁÒÁÍ2 = 'b';
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -768,7 +768,7 @@ ALTER DATABASE `mysqltest1` CHARACTER SET utf8 COLLATE utf8_unicode_ci ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `p2`(
+CREATE DEFINER=`root`@`localhost` PROCEDURE `p2`(
 INOUT ÐÁÒÁÍ1 CHAR(10) CHARACTER SET utf8,
 OUT ÐÁÒÁÍ2 CHAR(10) CHARACTER SET utf8)
 BEGIN
@@ -785,7 +785,7 @@ COLLATION(_utf8 'тек�т') AS c6,
 @@character_set_client AS c8;
 SET ÐÁÒÁÍ1 = 'a';
 SET ÐÁÒÁÍ2 = 'b';
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -810,7 +810,7 @@ ALTER DATABASE `mysqltest2` CHARACTER SET utf8 COLLATE utf8_unicode_ci ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `p3`(
+CREATE DEFINER=`root`@`localhost` PROCEDURE `p3`(
 INOUT ÐÁÒÁÍ1 CHAR(10),
 OUT ÐÁÒÁÍ2 CHAR(10))
 BEGIN
@@ -827,7 +827,7 @@ COLLATION(_utf8 'тек�т') AS c6,
 @@character_set_client AS c8;
 SET ÐÁÒÁÍ1 = 'a';
 SET ÐÁÒÁÍ2 = 'b';
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -844,7 +844,7 @@ ALTER DATABASE `mysqltest2` CHARACTER SET utf8 COLLATE utf8_unicode_ci ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `p4`(
+CREATE DEFINER=`root`@`localhost` PROCEDURE `p4`(
 INOUT ÐÁÒÁÍ1 CHAR(10) CHARACTER SET utf8,
 OUT ÐÁÒÁÍ2 CHAR(10) CHARACTER SET utf8)
 BEGIN
@@ -861,7 +861,7 @@ COLLATION(_utf8 'тек�т') AS c6,
 @@character_set_client AS c8;
 SET ÐÁÒÁÍ1 = 'a';
 SET ÐÁÒÁÍ2 = 'b';
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
diff --git a/mysql-test/r/ddl_i18n_utf8.result b/mysql-test/r/ddl_i18n_utf8.result
index fb32d229040..98da459dafc 100644
--- a/mysql-test/r/ddl_i18n_utf8.result
+++ b/mysql-test/r/ddl_i18n_utf8.result
@@ -734,7 +734,7 @@ ALTER DATABASE `mysqltest1` CHARACTER SET utf8 COLLATE utf8_unicode_ci ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `p1`(
+CREATE DEFINER=`root`@`localhost` PROCEDURE `p1`(
 INOUT парам1 CHAR(10),
 OUT парам2 CHAR(10))
 BEGIN
@@ -751,7 +751,7 @@ COLLATION(_koi8r    'ÔÅËÓÔ') AS c6,
 @@character_set_client AS c8;
 SET парам1 = 'a';
 SET парам2 = 'b';
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -768,7 +768,7 @@ ALTER DATABASE `mysqltest1` CHARACTER SET utf8 COLLATE utf8_unicode_ci ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `p2`(
+CREATE DEFINER=`root`@`localhost` PROCEDURE `p2`(
 INOUT парам1 CHAR(10) CHARACTER SET utf8,
 OUT парам2 CHAR(10) CHARACTER SET utf8)
 BEGIN
@@ -785,7 +785,7 @@ COLLATION(_koi8r    'ÔÅËÓÔ') AS c6,
 @@character_set_client AS c8;
 SET парам1 = 'a';
 SET парам2 = 'b';
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -810,7 +810,7 @@ ALTER DATABASE `mysqltest2` CHARACTER SET utf8 COLLATE utf8_unicode_ci ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `p3`(
+CREATE DEFINER=`root`@`localhost` PROCEDURE `p3`(
 INOUT парам1 CHAR(10),
 OUT парам2 CHAR(10))
 BEGIN
@@ -827,7 +827,7 @@ COLLATION(_koi8r    'ÔÅËÓÔ') AS c6,
 @@character_set_client AS c8;
 SET парам1 = 'a';
 SET парам2 = 'b';
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -844,7 +844,7 @@ ALTER DATABASE `mysqltest2` CHARACTER SET utf8 COLLATE utf8_unicode_ci ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `p4`(
+CREATE DEFINER=`root`@`localhost` PROCEDURE `p4`(
 INOUT парам1 CHAR(10) CHARACTER SET utf8,
 OUT парам2 CHAR(10) CHARACTER SET utf8)
 BEGIN
@@ -861,7 +861,7 @@ COLLATION(_koi8r    'ÔÅËÓÔ') AS c6,
 @@character_set_client AS c8;
 SET парам1 = 'a';
 SET парам2 = 'b';
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
diff --git a/mysql-test/r/derived.result b/mysql-test/r/derived.result
index c6b8bf73a6f..363a4700ee6 100644
--- a/mysql-test/r/derived.result
+++ b/mysql-test/r/derived.result
@@ -441,3 +441,16 @@ ERROR 21000: Subquery returns more than 1 row
 DROP TABLE t1, t2;
 DROP VIEW v1, v2;
 set optimizer_switch=@save_derived_optimizer_switch;
+create table t1 (n bigint(20) unsigned, d1 datetime, d2 datetime, key (d1));
+insert t1 values (2085,'2012-01-01 00:00:00','2013-01-01 00:00:00');
+insert t1 values (2084,'2012-02-01 00:00:00','2013-01-01 00:00:00');
+insert t1 values (2088,'2012-03-01 00:00:00','2013-01-01 00:00:00');
+select * from (
+select n, d1, d2, @result := 0 as result
+from t1
+where d1 < '2012-12-12 12:12:12' and n in (2085, 2084) order by d2 asc
+) as calculated_result;
+n	d1	d2	result
+2085	2012-01-01 00:00:00	2013-01-01 00:00:00	0
+2084	2012-02-01 00:00:00	2013-01-01 00:00:00	0
+drop table t1;
diff --git a/mysql-test/r/derived_view.result b/mysql-test/r/derived_view.result
index bce1da10e35..40420a15c25 100644
--- a/mysql-test/r/derived_view.result
+++ b/mysql-test/r/derived_view.result
@@ -2164,6 +2164,57 @@ a
 set optimizer_switch=@save3912_optimizer_switch;
 drop table t1, t2, t3;
 #
+# MDEV-4209: equi-join on BLOB column from materialized view
+#            or derived table
+#
+set @save_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='derived_with_keys=on';
+CREATE TABLE t1 (c1 text, c2 int);
+INSERT INTO t1 VALUES ('a',1), ('c',3), ('g',7), ('d',4), ('c',3);
+CREATE TABLE t2 (c1 text, c2 int);
+INSERT INTO t2 VALUES ('b',2), ('c',3);
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+EXPLAIN EXTENDED 
+SELECT v1.c1, v1.c2 FROM v1, t2 WHERE v1.c1=t2.c1 AND v1.c2=t2.c2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	<derived2>	ref	key0	key0	5	test.t2.c2	2	100.00	Using where
+2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	5	100.00	
+Warnings:
+Note	1003	select `v1`.`c1` AS `c1`,`v1`.`c2` AS `c2` from `test`.`v1` join `test`.`t2` where ((`v1`.`c1` = `test`.`t2`.`c1`) and (`v1`.`c2` = `test`.`t2`.`c2`))
+SELECT v1.c1, v1.c2 FROM v1, t2 WHERE v1.c1=t2.c1 AND v1.c2=t2.c2;
+c1	c2
+c	3
+c	3
+EXPLAIN EXTENDED 
+SELECT t2.c1, t2.c2 FROM (SELECT c1 g, MAX(c2) m FROM t1 GROUP BY c1) t, t2
+WHERE t.g=t2.c1 AND t.m=t2.c2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	<derived2>	ref	key0	key0	5	test.t2.c2	2	100.00	Using where
+2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	5	100.00	Using temporary; Using filesort
+Warnings:
+Note	1003	select `test`.`t2`.`c1` AS `c1`,`test`.`t2`.`c2` AS `c2` from (select `test`.`t1`.`c1` AS `g`,max(`test`.`t1`.`c2`) AS `m` from `test`.`t1` group by `test`.`t1`.`c1`) `t` join `test`.`t2` where ((`t`.`g` = `test`.`t2`.`c1`) and (`t`.`m` = `test`.`t2`.`c2`))
+SELECT t2.c1, t2.c2 FROM (SELECT c1 g, MAX(c2) m FROM t1 GROUP BY c1) t, t2
+WHERE t.g=t2.c1 AND t.m=t2.c2;
+c1	c2
+c	3
+EXPLAIN EXTENDED 
+SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; Using join buffer (flat, BNL join)
+2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	5	100.00	
+Warnings:
+Note	1003	select `v1`.`c1` AS `c1`,`v1`.`c2` AS `c2`,`test`.`t2`.`c1` AS `c1`,`test`.`t2`.`c2` AS `c2` from `test`.`v1` join `test`.`t2` where (`v1`.`c1` = `test`.`t2`.`c1`)
+SELECT v1.c1, v1.c2, t2.c1, t2.c2 FROM v1, t2 WHERE v1.c1=t2.c1;
+c1	c2	c1	c2
+c	3	c	3
+c	3	c	3
+DROP VIEW v1;
+DROP TABLE t1,t2;
+set optimizer_switch=@save_optimizer_switch;
+#
 # end of 5.3 tests
 #
 set optimizer_switch=@exit_optimizer_switch;
diff --git a/mysql-test/r/drop.result b/mysql-test/r/drop.result
index db3aa770499..55309e54fb3 100644
--- a/mysql-test/r/drop.result
+++ b/mysql-test/r/drop.result
@@ -142,9 +142,9 @@ create table `#mysql50#aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 ERROR 42000: Incorrect table name '#mysql50#aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa12345'
 show tables;
 Tables_in_mysqltestbug26703
+#mysql50#abc`def
 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa1234
 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
-#mysql50#abc`def
 use test;
 drop database mysqltestbug26703;
 End of 5.1 tests
diff --git a/mysql-test/r/dyncol.result b/mysql-test/r/dyncol.result
index 925fb38a0f8..172179bd7f4 100644
--- a/mysql-test/r/dyncol.result
+++ b/mysql-test/r/dyncol.result
@@ -182,13 +182,13 @@ select column_get(column_create(1, 1212 AS unsigned int), 1 as unsigned int);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,1212 AS unsigned int),1) as unsigned) AS `column_get(column_create(1, 1212 AS unsigned int), 1 as unsigned int)`
+Note	1003	select column_get(column_create(1,1212 AS unsigned int),1 as unsigned) AS `column_get(column_create(1, 1212 AS unsigned int), 1 as unsigned int)`
 explain extended
 select column_get(column_create(1, 1212 AS unsigned int), 1 as unsigned);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,1212 AS unsigned int),1) as unsigned) AS `column_get(column_create(1, 1212 AS unsigned int), 1 as unsigned)`
+Note	1003	select column_get(column_create(1,1212 AS unsigned int),1 as unsigned) AS `column_get(column_create(1, 1212 AS unsigned int), 1 as unsigned)`
 select column_get(column_create(1, 1212 AS decimal), 1 as unsigned int);
 column_get(column_create(1, 1212 AS decimal), 1 as unsigned int)
 1212
@@ -261,13 +261,13 @@ select column_get(column_create(1, 1212 AS int), 1 as int);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,1212 AS int),1) as signed) AS `column_get(column_create(1, 1212 AS int), 1 as int)`
+Note	1003	select column_get(column_create(1,1212 AS int),1 as signed) AS `column_get(column_create(1, 1212 AS int), 1 as int)`
 explain extended
 select column_get(column_create(1, 1212 AS int), 1 as signed int);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,1212 AS int),1) as signed) AS `column_get(column_create(1, 1212 AS int), 1 as signed int)`
+Note	1003	select column_get(column_create(1,1212 AS int),1 as signed) AS `column_get(column_create(1, 1212 AS int), 1 as signed int)`
 select column_get(column_create(1, -1212 AS int), 1 as int);
 column_get(column_create(1, -1212 AS int), 1 as int)
 -1212
@@ -368,7 +368,7 @@ select column_get(column_create(1, "1212" AS char charset utf8), 1 as char chars
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,'1212' AS char charset utf8 ),1) as char charset utf8) AS `column_get(column_create(1, "1212" AS char charset utf8), 1 as char charset utf8)`
+Note	1003	select column_get(column_create(1,'1212' AS char charset utf8 ),1 as char charset utf8) AS `column_get(column_create(1, "1212" AS char charset utf8), 1 as char charset utf8)`
 select column_get(column_create(1, 1212 AS unsigned int), 1 as char charset utf8);
 column_get(column_create(1, 1212 AS unsigned int), 1 as char charset utf8)
 1212
@@ -428,7 +428,7 @@ select column_get(column_create(1, "1212" AS char charset utf8), 1 as char chars
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,'1212' AS char charset utf8 ),1) as char charset binary) AS `column_get(column_create(1, "1212" AS char charset utf8), 1 as char charset binary)`
+Note	1003	select column_get(column_create(1,'1212' AS char charset utf8 ),1 as char charset binary) AS `column_get(column_create(1, "1212" AS char charset utf8), 1 as char charset binary)`
 #
 # column get real
 #
@@ -440,13 +440,13 @@ select column_get(column_create(1, 1212.12 AS double), 1 as double);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,1212.12 AS double),1) as double) AS `column_get(column_create(1, 1212.12 AS double), 1 as double)`
+Note	1003	select column_get(column_create(1,1212.12 AS double),1 as double) AS `column_get(column_create(1, 1212.12 AS double), 1 as double)`
 explain extended
 select column_get(column_create(1, 1212.12 AS double), 1 as double(6,2));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,1212.12 AS double),1) as double(6,2)) AS `column_get(column_create(1, 1212.12 AS double), 1 as double(6,2))`
+Note	1003	select column_get(column_create(1,1212.12 AS double),1 as double(6,2)) AS `column_get(column_create(1, 1212.12 AS double), 1 as double(6,2))`
 select column_get(column_create(1, 18446744073709551615 AS unsigned int), 1 as double);
 column_get(column_create(1, 18446744073709551615 AS unsigned int), 1 as double)
 1.8446744073709552e19
@@ -521,13 +521,13 @@ select column_get(column_create(1, 1212.12 AS double), 1 as decimal);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,1212.12 AS double),1) as decimal(10,0)) AS `column_get(column_create(1, 1212.12 AS double), 1 as decimal)`
+Note	1003	select column_get(column_create(1,1212.12 AS double),1 as decimal(10,0)) AS `column_get(column_create(1, 1212.12 AS double), 1 as decimal)`
 explain extended
 select column_get(column_create(1, 1212.12 AS double), 1 as decimal(6,2));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select cast(column_get(column_create(1,1212.12 AS double),1) as decimal(6,2)) AS `column_get(column_create(1, 1212.12 AS double), 1 as decimal(6,2))`
+Note	1003	select column_get(column_create(1,1212.12 AS double),1 as decimal(6,2)) AS `column_get(column_create(1, 1212.12 AS double), 1 as decimal(6,2))`
 select column_get(column_create(1, 18446744073709551615 AS unsigned int), 1 as decimal(20,0));
 column_get(column_create(1, 18446744073709551615 AS unsigned int), 1 as decimal(20,0))
 18446744073709551615
@@ -1336,6 +1336,77 @@ select hex(COLUMN_CREATE(0, 0.0 as decimal));
 hex(COLUMN_CREATE(0, 0.0 as decimal))
 000100000004
 #
+# MDEV-4292: parse error when selecting on views using dynamic column
+#
+create table t1 (i int, d blob);
+create view v1 as select i, column_get(d, 1 as binary) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as char charset binary) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+create view v1 as select i, column_get(d, 1 as int) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as signed) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+create view v1 as select i, column_get(d, 1 as unsigned int) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as unsigned) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+create view v1 as select i, column_get(d, 1 as date) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as date) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+create view v1 as select i, column_get(d, 1 as time) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as time) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+create view v1 as select i, column_get(d, 1 as datetime) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as datetime) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+create view v1 as select i, column_get(d, 1 as decimal) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as decimal(10,0)) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+create view v1 as select i, column_get(d, 1 as double) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as double) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+create view v1 as select i, column_get(d, 1 as char) as a from t1;
+select * from v1;
+i	a
+show create view v1;
+View	Create View	character_set_client	collation_connection
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i`,column_get(`t1`.`d`,1 as char charset latin1) AS `a` from `t1`	latin1	latin1_swedish_ci
+drop view v1;
+drop table t1;
+#
+# end of 5.3 tests
+#
+#
 # test of symbolic names
 #
 # creation test (names)
diff --git a/mysql-test/r/fulltext.result b/mysql-test/r/fulltext.result
index c067ff02574..e6abd44c267 100644
--- a/mysql-test/r/fulltext.result
+++ b/mysql-test/r/fulltext.result
@@ -699,3 +699,14 @@ EXECUTE stmt;
 DEALLOCATE PREPARE stmt;
 DROP TABLE t1;
 End of 5.1 tests
+CREATE TABLE t1 (
+id int(11)  auto_increment,
+title varchar(100)  default '',
+PRIMARY KEY  (id),
+KEY ind5 (title)
+) ENGINE=MyISAM;
+CREATE FULLTEXT INDEX IF NOT EXISTS ft1 ON t1(title);
+CREATE FULLTEXT INDEX IF NOT EXISTS ft1 ON t1(title);
+Warnings:
+Note	1061	Duplicate key name 'ft1'
+DROP TABLE t1;
diff --git a/mysql-test/r/fulltext_derived_4316.result b/mysql-test/r/fulltext_derived_4316.result
new file mode 100644
index 00000000000..141202c9842
--- /dev/null
+++ b/mysql-test/r/fulltext_derived_4316.result
@@ -0,0 +1,8 @@
+create table t1 (ft text) engine=myisam;
+insert into t1 values ('test1'),('test2');
+select distinct match(ft) against("test1" in boolean mode) from
+(select distinct ft from t1) as t;
+match(ft) against("test1" in boolean mode)
+1
+0
+drop table t1;
diff --git a/mysql-test/r/func_date_add.result b/mysql-test/r/func_date_add.result
index a7f2383848d..e8fbba786a4 100644
--- a/mysql-test/r/func_date_add.result
+++ b/mysql-test/r/func_date_add.result
@@ -96,3 +96,9 @@ b + interval a day
 2002-02-04
 drop table t1;
 End of 5.0 tests
+create table t1 (a varchar(10));
+insert t1 values ('2000-12-03'),('2008-05-03');
+select * from t1 where case a when adddate( '2012-12-12', 7 ) then true end;
+a
+drop table t1;
+End of 5.5 tests
diff --git a/mysql-test/r/func_group.result b/mysql-test/r/func_group.result
index 65323257300..c6fa040246a 100644
--- a/mysql-test/r/func_group.result
+++ b/mysql-test/r/func_group.result
@@ -1837,10 +1837,10 @@ INSERT INTO t2 VALUES
 EXPLAIN EXTENDED
 SELECT MAX(a) FROM t1 WHERE (1,2) IN (SELECT 3,4) AND a<10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	range	a	a	4	NULL	4	100.00	Using where; Using index
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	select max(`test`.`t1`.`a`) AS `MAX(a)` from `test`.`t1` where (<cache>(<in_optimizer>((1,2),<exists>(select 3,4 having (((1 = 3) or isnull(3)) and ((2 = 4) or isnull(4)) and <is_not_null_test>(3) and <is_not_null_test>(4))))) and (`test`.`t1`.`a` < 10))
+Note	1003	select max(`test`.`t1`.`a`) AS `MAX(a)` from `test`.`t1` where 0
 SELECT MAX(a) FROM t1 WHERE (1,2) IN (SELECT 3,4) AND a<10;
 MAX(a)
 NULL
@@ -1851,7 +1851,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	range	a	a	4	NULL	4	100.00	Using where; Using index; Using join buffer (flat, BNL join)
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where
 Warnings:
-Note	1003	select max(`test`.`t1`.`a`) AS `MAX(a)` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = 2) and (`test`.`t2`.`a` = 1) and (`test`.`t1`.`a` < 10))
+Note	1003	select max(`test`.`t1`.`a`) AS `MAX(a)` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`a` = 1) and (`test`.`t2`.`b` = 2) and (`test`.`t1`.`a` < 10))
 SELECT MAX(a) FROM t1 WHERE (1,2) IN (SELECT a,b FROM t2 WHERE b<5) and a<10;
 MAX(a)
 NULL
@@ -2090,6 +2090,13 @@ set @@optimizer_switch=@save_optimizer_switch;
 # Cleanup for BUG#46680
 #
 DROP TABLE IF EXISTS t1,t2,t3,empty1;
+create table t1 (i int, d date);
+insert into t1 values (1, '2008-10-02'), (2, '2010-12-12');
+select avg(export_set( 3, 'y', sha(i))), group_concat(d) from t1 group by d order by i;
+avg(export_set( 3, 'y', sha(i)))	group_concat(d)
+0	2008-10-02
+0	2010-12-12
+drop table t1;
 #
 # Bug#52123 Assertion failed: aggregator == aggr->Aggrtype(),
 #           file .\item_sum.cc, line 587
diff --git a/mysql-test/r/func_group_innodb.result b/mysql-test/r/func_group_innodb.result
index 67ea44f187a..9489960d28c 100644
--- a/mysql-test/r/func_group_innodb.result
+++ b/mysql-test/r/func_group_innodb.result
@@ -217,7 +217,20 @@ SELECT member_id_to, COUNT(*) FROM t1 WHERE r_date =
 member_id_to	COUNT(*)
 518491	2
 DROP TABLE t1;
-# End of test  BUG#12713907
+#
+# MDEV-4269: crash when grouping by values()
+#
+SELECT @@storage_engine INTO @old_engine;
+set storage_engine=innodb;
+create table y select 1 b;
+select 1 from y group by b;
+1
+1
+select 1 from y group by values(b);
+1
+1
+drop table y;
+SET storage_engine=@old_engine;
 #
 # Bug#13723054 CRASH WITH MIN/MAX AFTER QUICK_GROUP_MIN_MAX_SELECT::NEXT_MIN
 #
diff --git a/mysql-test/r/func_misc.result b/mysql-test/r/func_misc.result
index 55b0f9d3c57..a033c91bc05 100644
--- a/mysql-test/r/func_misc.result
+++ b/mysql-test/r/func_misc.result
@@ -338,6 +338,227 @@ set optimizer_switch=@optimizer_switch_save;
 drop view  v_merge, vm;
 drop table t1,tv;
 #
+# GET_LOCK, RELEASE_LOCK, IS_USED_LOCK functions test
+#
+# IS_USED_LOCK, IS_FREE_LOCK: the  lock is not acquired
+# Note: IS_USED_LOCK returns NULL if the lock is unused
+select is_used_lock('test');
+is_used_lock('test')
+NULL
+select is_free_lock('test');
+is_free_lock('test')
+1
+# GET_LOCK returns 1 if it manages to acquire a lock
+select get_lock('test', 0);
+get_lock('test', 0)
+1
+# IS_USED_LOCK, IS_FREE_LOCK: the  lock is acquired
+select is_free_lock('test');
+is_free_lock('test')
+0
+select is_used_lock('test') = connection_id();
+is_used_lock('test') = connection_id()
+1
+# -> Switching to connection 'con1'
+# IS_USED_LOCK, IS_FREE_LOCK: the  lock is acquired in another
+# connection
+select is_used_lock('test') = connection_id();
+is_used_lock('test') = connection_id()
+0
+select is_free_lock('test');
+is_free_lock('test')
+0
+# GET_LOCK returns 0 if it can't acquire a lock (wait timeout)
+select get_lock('test', 0);
+get_lock('test', 0)
+0
+# RELEASE_LOCK returns 0 if the lock belongs to another connection 
+select release_lock('test');
+release_lock('test')
+0
+# -> Switching to connection 'default'
+# RELEASE_LOCK returns 1 if it successfully releases a lock
+select release_lock('test');
+release_lock('test')
+1
+# RELEASE_LOCK returns NULL if it doesn't release a lock and there is no such lock
+select release_lock('test');
+release_lock('test')
+NULL
+# Test that get_lock() returns NULL if error.
+select get_lock('test', 0);
+get_lock('test', 0)
+1
+# -> Switching to connection 'con1'
+create table t1 select connection_id() as id;
+select get_lock('test', 7200);
+# -> Switching to connection 'default'
+select (@id := id) - id from t1;
+(@id := id) - id
+0
+kill query @id;
+# -> Switching to connection 'con1'
+get_lock('test', 7200)
+NULL
+# -> Switching to connection 'default'
+# GET_LOCK() works recursively 
+select get_lock('test', 0);
+get_lock('test', 0)
+1
+select get_lock('test', 0);
+get_lock('test', 0)
+1
+select get_lock('test', 0);
+get_lock('test', 0)
+1
+# RELEASE_LOCK() needs to be called recursively then, too
+select release_lock('test');
+release_lock('test')
+1
+select release_lock('test');
+release_lock('test')
+1
+select release_lock('test');
+release_lock('test')
+1
+# Once the last instance of the lock is released, 
+# the next call returns NULL
+select release_lock('test');
+release_lock('test')
+1
+# Multiple locks in the same session are OK
+select get_lock('test1', 0);
+get_lock('test1', 0)
+1
+select get_lock('test2', 0);
+get_lock('test2', 0)
+1
+select get_lock('test3', 0);
+get_lock('test3', 0)
+1
+select release_lock('test1');
+release_lock('test1')
+1
+select release_lock('test2');
+release_lock('test2')
+1
+select release_lock('test3');
+release_lock('test3')
+1
+# Deadlocks are detected e.g. in case of a mutual wait
+select get_lock('test1', 0);
+get_lock('test1', 0)
+1
+# -> Switching to connection 'con1'
+select get_lock('test2', 0);
+get_lock('test2', 0)
+1
+select get_lock('test1', 7200);
+# -> Switching to connection 'default'
+select get_lock('test2', 7200);
+ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
+select release_lock('test1');
+release_lock('test1')
+1
+# -> Switching to connection 'con1'
+get_lock('test1', 7200)
+1
+select release_lock('test2');
+release_lock('test2')
+1
+select release_lock('test1');
+release_lock('test1')
+1
+# -> Switching to connection 'default'
+# LOCK/UNLOCK TABLES works fine with a user lock.
+lock table t1 write;
+select get_lock('test', 0);
+get_lock('test', 0)
+1
+unlock tables;
+commit;
+select release_lock('test');
+release_lock('test')
+1
+# GLOBAL READ LOCK works with fine with user locks
+select get_lock('test1', 0);
+get_lock('test1', 0)
+1
+flush tables with read lock;
+select get_lock('test2', 0);
+get_lock('test2', 0)
+1
+unlock tables;
+commit;
+select release_lock('test1');
+release_lock('test1')
+1
+select release_lock('test2');
+release_lock('test2')
+1
+# BEGIN/COMMIT/ROLLBACK don't unlock user locks.
+begin;
+select get_lock('test1', 0);
+get_lock('test1', 0)
+1
+select  get_lock('test2', 0);
+get_lock('test2', 0)
+1
+select count(*) from t1;
+count(*)
+1
+rollback;
+select release_lock('test1');
+release_lock('test1')
+1
+select release_lock('test2');
+release_lock('test2')
+1
+# Deadlocks between user locks and LOCK TABLES locks
+# are detected OK.
+select get_lock('test', 0);
+get_lock('test', 0)
+1
+# -> Switching to connection 'con1'
+lock table t1 write;
+select get_lock('test', 7200);
+# -> Switching to connection 'default'
+lock table t1 read;
+ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
+select release_lock('test');
+release_lock('test')
+1
+# -> Switching to connection 'con1'
+get_lock('test', 7200)
+1
+select release_lock('test');
+release_lock('test')
+1
+unlock tables;
+# cleanup
+drop table t1;
+# check too long identifier names
+select get_lock(repeat('a', 192), 0);
+get_lock(repeat('a', 192), 0)
+1
+select is_used_lock(repeat('a', 192)) = connection_id();
+is_used_lock(repeat('a', 192)) = connection_id()
+1
+select is_free_lock(repeat('a', 192));
+is_free_lock(repeat('a', 192))
+0
+select release_lock(repeat('a', 192));
+release_lock(repeat('a', 192))
+1
+select get_lock(repeat('a', 193), 0);
+ERROR 42000: Identifier name 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' is too long
+select is_used_lock(repeat('a', 193));
+ERROR 42000: Identifier name 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' is too long
+select is_free_lock(repeat('a', 193));
+ERROR 42000: Identifier name 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' is too long
+select release_lock(repeat('a', 193));
+ERROR 42000: Identifier name 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' is too long
+#
 # End of 5.5 tests
 #
 #
diff --git a/mysql-test/r/func_sapdb.result b/mysql-test/r/func_sapdb.result
index fa3d37c08c2..1f20ddc6cbb 100644
--- a/mysql-test/r/func_sapdb.result
+++ b/mysql-test/r/func_sapdb.result
@@ -168,7 +168,7 @@ date("1997-12-31 23:59:59.000001")
 1997-12-31
 select date("1997-13-31 23:59:59.000001");
 date("1997-13-31 23:59:59.000001")
-NULL
+0000-00-00
 Warnings:
 Warning	1292	Incorrect datetime value: '1997-13-31 23:59:59.000001'
 select time("1997-12-31 23:59:59.000001");
@@ -176,7 +176,7 @@ time("1997-12-31 23:59:59.000001")
 23:59:59.000001
 select time("1997-12-31 25:59:59.000001");
 time("1997-12-31 25:59:59.000001")
-NULL
+00:00:00
 Warnings:
 Warning	1292	Truncated incorrect time value: '1997-12-31 25:59:59.000001'
 select microsecond("1997-12-31 23:59:59.000001");
diff --git a/mysql-test/r/func_str.result b/mysql-test/r/func_str.result
index 80729545902..16c0854241f 100644
--- a/mysql-test/r/func_str.result
+++ b/mysql-test/r/func_str.result
@@ -2634,6 +2634,31 @@ SELECT * FROM t1;
 a
 aaaaaaaaaaaaaa
 DROP TABLE t1;
+SELECT SUBSTRING('1', DAY(FROM_UNIXTIME(-1)));
+SUBSTRING('1', DAY(FROM_UNIXTIME(-1)))
+NULL
+SELECT LEFT('1', DAY(FROM_UNIXTIME(-1)));
+LEFT('1', DAY(FROM_UNIXTIME(-1)))
+NULL
+SELECT RIGHT('1', DAY(FROM_UNIXTIME(-1)));
+RIGHT('1', DAY(FROM_UNIXTIME(-1)))
+NULL
+SELECT REPEAT('1', DAY(FROM_UNIXTIME(-1)));
+REPEAT('1', DAY(FROM_UNIXTIME(-1)))
+NULL
+SELECT RPAD('hi', DAY(FROM_UNIXTIME(-1)),'?');
+RPAD('hi', DAY(FROM_UNIXTIME(-1)),'?')
+NULL
+SELECT LPAD('hi', DAY(FROM_UNIXTIME(-1)),'?');
+LPAD('hi', DAY(FROM_UNIXTIME(-1)),'?')
+NULL
+create table t1 (i int);
+insert into t1 values (null),(8);
+select group_concat( i ), make_set( i, 'a', 'b' ) field from t1 group by field;
+group_concat( i )	field
+NULL	NULL
+8	
+drop table t1;
 End of 5.1 tests
 Start of 5.4 tests
 SELECT format(12345678901234567890.123, 3);
@@ -2864,9 +2889,6 @@ sha1('P'),
 Warnings:
 Warning	1292	Truncated incorrect DECIMAL value: '[.DC2.]'
 SET @@global.max_allowed_packet:= @tmp_max;
-#
-# End of 5.5 tests
-#
 SELECT @tmp_max:= @@global.max_allowed_packet;
 @tmp_max:= @@global.max_allowed_packet
 1048576
@@ -2880,3 +2902,15 @@ NULL
 Warnings:
 Warning	1301	Result of repeat() was larger than max_allowed_packet (1048576) - truncated
 SET @@global.max_allowed_packet:= @tmp_max;
+#
+# MDEV-4272: DIV operator crashes in Item_func_int_div::val_int
+# (incorrect NULL value handling by convert)
+#
+create table t1(a int) select null;
+select 1 div convert(a using utf8) from t1;
+1 div convert(a using utf8)
+NULL
+drop table t1;
+#
+# End of 5.5 tests
+#
diff --git a/mysql-test/r/func_time.result b/mysql-test/r/func_time.result
index dd4b73b0b05..e8526ae8f1f 100644
--- a/mysql-test/r/func_time.result
+++ b/mysql-test/r/func_time.result
@@ -1781,7 +1781,7 @@ Warnings:
 Warning	1441	Datetime function: time field overflow
 select cast('131415.123e0' as time);
 cast('131415.123e0' as time)
-NULL
+00:00:00
 Warnings:
 Warning	1292	Truncated incorrect time value: '131415.123e0'
 select cast('2010-01-02 03:04:05' as datetime) between null and '2010-01-02 03:04:04';
@@ -1801,12 +1801,12 @@ unix_timestamp(null)
 NULL
 select truncate(date('2010-40-10'), 6);
 truncate(date('2010-40-10'), 6)
-NULL
+0.000000
 Warnings:
 Warning	1292	Incorrect datetime value: '2010-40-10'
 select extract(month from '2010-40-50');
 extract(month from '2010-40-50')
-NULL
+0
 Warnings:
 Warning	1292	Incorrect datetime value: '2010-40-50'
 select subtime('0000-00-10 10:10:10', '30 10:00:00');
@@ -1924,3 +1924,15 @@ microsecond('12:00:00.123456')	microsecond('2009-12-31 23:59:59.000010')
 123456	10
 select now(258);
 ERROR 42000: Too big precision 258 specified for 'now'. Maximum is 6.
+SELECT 1 FROM DUAL WHERE YEAR(TIMEDIFF(NULL, '12:12:12'));
+1
+SELECT 1 FROM DUAL WHERE MONTH(TIMEDIFF(NULL, '12:12:12'));
+1
+SELECT 1 FROM DUAL WHERE DAYOFMONTH(TIMEDIFF(NULL, '12:12:12'));
+1
+SELECT 1 FROM DUAL WHERE HOUR(TIMEDIFF(NULL, '12:12:12'));
+1
+SELECT 1 FROM DUAL WHERE MINUTE(TIMEDIFF(NULL, '12:12:12'));
+1
+SELECT 1 FROM DUAL WHERE SECOND(TIMEDIFF(NULL, '12:12:12'));
+1
diff --git a/mysql-test/r/gis-rtree.result b/mysql-test/r/gis-rtree.result
index 26787366358..c394aec8851 100644
--- a/mysql-test/r/gis-rtree.result
+++ b/mysql-test/r/gis-rtree.result
@@ -758,7 +758,7 @@ SPATIAL KEY(g)
 INSERT INTO t1 (g) VALUES (GeomFromText('LineString(1 2, 2 3)')),(GeomFromText('LineString(1 2, 2 4)'));
 drop table t1;
 CREATE TABLE t1 (
-line LINESTRING NOT NULL,
+line GEOMETRY NOT NULL,
 kind ENUM('po', 'pp', 'rr', 'dr', 'rd', 'ts', 'cl') NOT NULL DEFAULT 'po',
 name VARCHAR(32),
 SPATIAL KEY (line)
@@ -1553,7 +1553,7 @@ End of 5.0 tests.
 # Bug #57323/11764487: myisam corruption with insert ignore 
 # and invalid spatial data
 #
-CREATE TABLE t1(a LINESTRING NOT NULL, b GEOMETRY NOT NULL,
+CREATE TABLE t1(a POINT NOT NULL, b GEOMETRY NOT NULL,
 SPATIAL KEY(a), SPATIAL KEY(b)) ENGINE=MyISAM;
 INSERT INTO t1 VALUES(GEOMFROMTEXT("point (0 0)"), GEOMFROMTEXT("point (1 1)"));
 INSERT IGNORE INTO t1 SET a=GEOMFROMTEXT("point (-6 0)"), b=GEOMFROMTEXT("error");
diff --git a/mysql-test/r/gis.result b/mysql-test/r/gis.result
index 30385323502..eb9f1a57c32 100644
--- a/mysql-test/r/gis.result
+++ b/mysql-test/r/gis.result
@@ -406,20 +406,20 @@ FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second
 first	second	w	c	o	e	d	t	i	r
 120	120	1	1	0	1	0	1	1	0
 120	121	0	0	1	0	0	0	1	0
-120	122	0	1	NULL	0	NULL	0	NULL	0
-120	123	0	1	NULL	0	NULL	0	NULL	0
+120	122	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+120	123	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
 121	120	0	0	1	0	0	0	1	0
 121	121	1	1	0	1	0	1	1	0
-121	122	0	1	NULL	0	NULL	0	NULL	0
-121	123	0	1	NULL	0	NULL	0	NULL	0
-122	120	1	0	NULL	0	NULL	0	NULL	0
-122	121	1	0	NULL	0	NULL	0	NULL	0
-122	122	1	1	NULL	1	NULL	0	NULL	0
-122	123	1	1	NULL	1	NULL	0	NULL	0
-123	120	1	0	NULL	0	NULL	0	NULL	0
-123	121	1	0	NULL	0	NULL	0	NULL	0
-123	122	1	1	NULL	1	NULL	0	NULL	0
-123	123	1	1	NULL	1	NULL	0	NULL	0
+121	122	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+121	123	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+122	120	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+122	121	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+122	122	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+122	123	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+123	120	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+123	121	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+123	122	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
+123	123	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL
 explain extended SELECT g1.fid as first, g2.fid as second,
 Within(g1.g, g2.g) as w, Contains(g1.g, g2.g) as c, Overlaps(g1.g, g2.g) as o,
 Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t,
@@ -1047,7 +1047,7 @@ SET @a=0x00000000030000000100000000000000000000000000144000000000000014400000000
 SET @a=POLYFROMWKB(@a);
 SET @a=0x00000000030000000000000000000000000000000000144000000000000014400000000000001840000000000000184000000000000014400000000000001440;
 SET @a=POLYFROMWKB(@a);
-create table t1(a polygon NOT NULL)engine=myisam;
+create table t1(a geometry NOT NULL)engine=myisam;
 insert into t1 values (geomfromtext("point(0 1)"));
 insert into t1 values (geomfromtext("point(1 0)"));
 select * from (select polygon(t1.a) as p from t1 order by t1.a) d;
@@ -1063,6 +1063,84 @@ create table t1(a char(32) not null) engine=myisam;
 create spatial index i on t1 (a);
 ERROR HY000: Incorrect arguments to SPATIAL INDEX
 drop table t1;
+CREATE TABLE t0 (a BINARY(32) NOT NULL);
+CREATE SPATIAL INDEX i on t0 (a);
+ERROR HY000: Incorrect arguments to SPATIAL INDEX
+INSERT INTO t0 VALUES (1);
+CREATE TABLE t1(
+col0 BINARY NOT NULL,
+col2 TIMESTAMP,
+SPATIAL INDEX i1 (col0)
+) ENGINE=MyISAM;
+ERROR HY000: Incorrect arguments to SPATIAL INDEX
+CREATE TABLE t1 (
+col0 BINARY NOT NULL,
+col2 TIMESTAMP
+) ENGINE=MyISAM;
+CREATE SPATIAL INDEX idx0 ON t1(col0);
+ERROR HY000: Incorrect arguments to SPATIAL INDEX
+ALTER TABLE t1 ADD SPATIAL INDEX i1 (col0);
+ERROR HY000: Incorrect arguments to SPATIAL INDEX
+CREATE TABLE t2 (
+col0 INTEGER NOT NULL,
+col1 POINT,
+col2 POINT
+);
+CREATE SPATIAL INDEX idx0 ON t2 (col1, col2);
+ERROR HY000: Incorrect arguments to SPATIAL INDEX
+CREATE TABLE t3 (
+col0 INTEGER NOT NULL,
+col1 POINT,
+col2 LINESTRING,
+SPATIAL INDEX i1 (col1, col2)
+);
+ERROR HY000: Incorrect arguments to SPATIAL INDEX
+DROP TABLE t0, t1, t2;
+#
+# BUG#12414917 - ISCLOSED() CRASHES ON 64-BIT BUILDS
+#
+SELECT ISCLOSED(CONVERT(CONCAT('     ', 0x2), BINARY(20)));
+ISCLOSED(CONVERT(CONCAT('     ', 0x2), BINARY(20)))
+NULL
+#
+# BUG#12537203 - CRASH WHEN SUBSELECTING GLOBAL VARIABLES IN 
+# GEOMETRY FUNCTION ARGUMENTS
+#
+SELECT GEOMETRYCOLLECTION((SELECT @@OLD));
+ERROR 22007: Illegal non geometric '' value found during parsing
+#
+# MDEV-4252 geometry query crashes server
+#
+select astext(0x0100000000030000000100000000000010);
+astext(0x0100000000030000000100000000000010)
+NULL
+select astext(st_centroid(0x0100000000030000000100000000000010));
+astext(st_centroid(0x0100000000030000000100000000000010))
+NULL
+select astext(st_exteriorring(0x0100000000030000000100000000000010));
+astext(st_exteriorring(0x0100000000030000000100000000000010))
+NULL
+select envelope(0x0100000000030000000100000000000010);
+envelope(0x0100000000030000000100000000000010)
+NULL
+select geometryn(0x0100000000070000000100000001030000000200000000000000ffff0000, 1);
+geometryn(0x0100000000070000000100000001030000000200000000000000ffff0000, 1)
+NULL
+select geometryn(0x0100000000070000000100000001030000000200000000000000ffffff0f, 1);
+geometryn(0x0100000000070000000100000001030000000200000000000000ffffff0f, 1)
+NULL
+#
+# MDEV-4296 Assertion `n_linear_rings > 0' fails in Gis_polygon::centroid_xy
+#
+SELECT Centroid( AsBinary( LineString(Point(0,0), Point(0,0), Point(0,0) )));
+Centroid( AsBinary( LineString(Point(0,0), Point(0,0), Point(0,0) )))
+NULL
+#
+# MDEV-4295 Server crashes in get_point on a query with Area, AsBinary, MultiPoint
+#
+SELECT Area(AsBinary(MultiPoint(Point(0,9), Point(0,1), Point(2,2))));
+Area(AsBinary(MultiPoint(Point(0,9), Point(0,1), Point(2,2))))
+NULL
 End of 5.1 tests
 select ST_AREA(ST_GEOMCOLLFROMTEXT(' GEOMETRYCOLLECTION(LINESTRING(100 100, 31 10, 77 80), POLYGON((0 0,4 7,1 1,0 0)), POINT(20 20))'));
 ST_AREA(ST_GEOMCOLLFROMTEXT(' GEOMETRYCOLLECTION(LINESTRING(100 100, 31 10, 77 80), POLYGON((0 0,4 7,1 1,0 0)), POINT(20 20))'))
@@ -1428,6 +1506,7 @@ WHERE ST_Contains(ST_Buffer(bridges.position, 15.0), buildings.footprint) = 1;
 count(*)
 1
 DROP DATABASE gis_ogs;
+USE test;
 #
 # BUG #1043845 st_distance() results are incorrect depending on variable order
 #
@@ -1451,20 +1530,23 @@ geomfromtext('LINESTRING(-95.9673005697771 36.13509598461,
                            -95.9673057475387 36.1344478941074,
                            -95.9673063519371 36.
 0.008148695928146028
-USE test;
 #
-# BUG#12414917 - ISCLOSED() CRASHES ON 64-BIT BUILDS
+# MDEV-4310 geometry function equals hangs forever.
 #
-SELECT ISCLOSED(CONVERT(CONCAT('     ', 0x2), BINARY(20)));
-ISCLOSED(CONVERT(CONCAT('     ', 0x2), BINARY(20)))
+create table t1(a geometry not null)engine=myisam;
+insert into t1 values(geomfromtext("POINT(0 0)"));
+insert into t1 values(geomfromtext("POINT(0 9.2233720368548e18)"));
+insert into t1 values(geomfromtext("POINT(0 9.2233720368548e18)"));
+select equals(`a`,convert(`a` using utf8)) from `t1`;
+equals(`a`,convert(`a` using utf8))
+1
 NULL
-#
-# BUG#12537203 - CRASH WHEN SUBSELECTING GLOBAL VARIABLES IN 
-# GEOMETRY FUNCTION ARGUMENTS
-#
-SELECT GEOMETRYCOLLECTION((SELECT @@OLD));
-ERROR 22007: Illegal non geometric '' value found during parsing
-End of 5.1 tests
+NULL
+Warnings:
+Warning	1300	Invalid utf8 character string: 'E043'
+Warning	1300	Invalid utf8 character string: 'E043'
+drop table t1;
+End of 5.3 tests
 #
 # Bug#11908153: CRASH AND/OR VALGRIND ERRORS IN FIELD_BLOB::GET_KEY_IMAGE
 #
@@ -1491,4 +1573,11 @@ SELECT 1 FROM g1 WHERE a >= ANY
 (SELECT 1 FROM g1 WHERE a = geomfromtext('') OR a) ;
 1
 DROP TABLE g1;
+#
+# MDEV-3819 missing constraints for spatial column types
+#
+create table t1 (pt point);
+insert into t1 values(Geomfromtext('POLYGON((1 1, 2 2, 2 1, 1 1))'));
+ERROR 22007: Incorrect POINT value: 'POLYGON' for column 'pt' at row 1
+drop table t1;
 End of 5.5 tests
diff --git a/mysql-test/r/grant4.result b/mysql-test/r/grant4.result
index d0b6627cd0b..65ab92c1afd 100644
--- a/mysql-test/r/grant4.result
+++ b/mysql-test/r/grant4.result
@@ -86,9 +86,9 @@ GRANT SHOW VIEW, SELECT ON v3 to mysqltest_u1@localhost;
 use mysqltest_db1;
 ** Connect as restricted user mysqltest_u1.
 ** SELECT FROM INFORMATION_SCHEMA.STATISTICS will succeed because any privileges will do (authentication is enough).
+** but will return no rows
 SELECT * FROM INFORMATION_SCHEMA.STATISTICS WHERE table_name='t5';
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	NON_UNIQUE	INDEX_SCHEMA	INDEX_NAME	SEQ_IN_INDEX	COLUMN_NAME	COLLATION	CARDINALITY	SUB_PART	PACKED	NULLABLE	INDEX_TYPE	COMMENT	INDEX_COMMENT
-def	mysqltest_db1	t5	1	mysqltest_db1	i	1	s1	A	NULL	NULL	NULL	YES	BTREE		
 ** SHOW INDEX FROM t5 will fail because we don't have any privileges on any column combination.
 SHOW INDEX FROM t5;
 ERROR 42000: SELECT command denied to user 'mysqltest_u1'@'localhost' for table 't5'
diff --git a/mysql-test/r/group_by.result b/mysql-test/r/group_by.result
index 085003c7790..a1f19204274 100644
--- a/mysql-test/r/group_by.result
+++ b/mysql-test/r/group_by.result
@@ -1946,6 +1946,250 @@ Warning	1292	Truncated incorrect INTEGER value: 'K'
 Warning	1292	Truncated incorrect INTEGER value: 'jxW<'
 DROP TABLE t1;
 SET BIG_TABLES=0;
+#
+# MDEV-641 LP:1002108 - Wrong result (or crash) from a query with duplicated field in the group list and a limit clause
+# Bug#11761078: 53534: INCORRECT 'SELECT SQL_BIG_RESULT...' 
+#               WITH GROUP BY ON DUPLICATED FIELDS
+#
+CREATE TABLE t1(
+col1 int, 
+UNIQUE INDEX idx (col1));
+INSERT INTO t1 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),
+(11),(12),(13),(14),(15),(16),(17),(18),(19),(20);
+EXPLAIN SELECT col1 AS field1, col1 AS field2
+FROM t1 GROUP BY field1, field2;;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	idx	5	NULL	20	Using index; Using temporary; Using filesort
+FLUSH STATUS;
+SELECT col1 AS field1, col1 AS field2
+FROM t1 GROUP BY field1, field2;;
+field1	field2
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+10	10
+11	11
+12	12
+13	13
+14	14
+15	15
+16	16
+17	17
+18	18
+19	19
+20	20
+SHOW SESSION STATUS LIKE 'Sort_scan%';
+Variable_name	Value
+Sort_scan	1
+EXPLAIN SELECT SQL_BIG_RESULT col1 AS field1, col1 AS field2
+FROM t1 GROUP BY field1, field2;;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	idx	5	NULL	20	Using index; Using filesort
+FLUSH STATUS;
+SELECT SQL_BIG_RESULT col1 AS field1, col1 AS field2
+FROM t1 GROUP BY field1, field2;;
+field1	field2
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+10	10
+11	11
+12	12
+13	13
+14	14
+15	15
+16	16
+17	17
+18	18
+19	19
+20	20
+SHOW SESSION STATUS LIKE 'Sort_scan%';
+Variable_name	Value
+Sort_scan	1
+CREATE VIEW v1 AS SELECT * FROM t1;
+SELECT SQL_BIG_RESULT col1 AS field1, col1 AS field2
+FROM v1 
+GROUP BY field1, field2;
+field1	field2
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+10	10
+11	11
+12	12
+13	13
+14	14
+15	15
+16	16
+17	17
+18	18
+19	19
+20	20
+SELECT SQL_BIG_RESULT tbl1.col1 AS field1, tbl2.col1 AS field2
+FROM t1 as tbl1, t1 as tbl2 
+GROUP BY field1, field2 
+LIMIT 3;
+field1	field2
+1	1
+1	2
+1	3
+explain
+select col1 f1, col1 f2 from t1 order by f2, f1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	idx	5	NULL	20	Using index; Using filesort
+select col1 f1, col1 f2 from t1 order by f2, f1;
+f1	f2
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+10	10
+11	11
+12	12
+13	13
+14	14
+15	15
+16	16
+17	17
+18	18
+19	19
+20	20
+explain
+select col1 f1, col1 f2 from t1 group by f2 order by f2, f1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	NULL	idx	5	NULL	7	Using index for group-by; Using temporary; Using filesort
+select col1 f1, col1 f2 from t1 group by f2 order by f2, f1;
+f1	f2
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+10	10
+11	11
+12	12
+13	13
+14	14
+15	15
+16	16
+17	17
+18	18
+19	19
+20	20
+explain
+select col1 f1, col1 f2 from t1 group by f1, f2 order by f2, f1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	idx	5	NULL	20	Using index; Using temporary; Using filesort
+select col1 f1, col1 f2 from t1 group by f1, f2 order by f2, f1;
+f1	f2
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+10	10
+11	11
+12	12
+13	13
+14	14
+15	15
+16	16
+17	17
+18	18
+19	19
+20	20
+CREATE TABLE t2(
+col1 int, 
+col2 int, 
+UNIQUE INDEX idx (col1, col2));
+INSERT INTO t2(col1, col2) VALUES
+(1,20),(2,19),(3,18),(4,17),(5,16),(6,15),(7,14),(8,13),(9,12),(10,11),
+(11,10),(12,9),(13,8),(14,7),(15,6),(16,5),(17,4),(18,3),(19,2),(20,1);
+explain
+select col1 f1, col2 f2, col1 f3 from t2 group by f1, f2, f3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t2	index	NULL	idx	10	NULL	20	Using index; Using temporary; Using filesort
+select col1 f1, col2 f2, col1 f3 from t2 group by f1, f2, f3;
+f1	f2	f3
+1	20	1
+2	19	2
+3	18	3
+4	17	4
+5	16	5
+6	15	6
+7	14	7
+8	13	8
+9	12	9
+10	11	10
+11	10	11
+12	9	12
+13	8	13
+14	7	14
+15	6	15
+16	5	16
+17	4	17
+18	3	18
+19	2	19
+20	1	20
+explain
+select col1 f1, col2 f2, col1 f3 from t2 order by f1, f2, f3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t2	index	NULL	idx	10	NULL	20	Using index; Using filesort
+select col1 f1, col2 f2, col1 f3 from t2 order by f1, f2, f3;
+f1	f2	f3
+1	20	1
+2	19	2
+3	18	3
+4	17	4
+5	16	5
+6	15	6
+7	14	7
+8	13	8
+9	12	9
+10	11	10
+11	10	11
+12	9	12
+13	8	13
+14	7	14
+15	6	15
+16	5	16
+17	4	17
+18	3	18
+19	2	19
+20	1	20
+DROP VIEW v1;
+DROP TABLE t1, t2;
 # End of 5.1 tests
 #
 # LP bug#694450 Wrong result with non-standard GROUP BY + ORDER BY
diff --git a/mysql-test/r/group_min_max.result b/mysql-test/r/group_min_max.result
index d1faec7f758..cc7c9c4d364 100644
--- a/mysql-test/r/group_min_max.result
+++ b/mysql-test/r/group_min_max.result
@@ -1714,7 +1714,7 @@ explain extended select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	index	NULL	idx_t1_1	163	NULL	128	50.78	Using where; Using index
 Warnings:
-Note	1003	select distinct `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where ((`test`.`t1`.`c` = 'i121') and (`test`.`t1`.`b` = 'a') and (`test`.`t1`.`a2` >= 'b'))
+Note	1003	select distinct `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where ((`test`.`t1`.`b` = 'a') and (`test`.`t1`.`c` = 'i121') and (`test`.`t1`.`a2` >= 'b'))
 explain select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	147	NULL	14	Using where; Using index for group-by
@@ -1731,7 +1731,7 @@ explain extended select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t2	index	NULL	idx_t2_1	163	NULL	164	50.61	Using where; Using index
 Warnings:
-Note	1003	select distinct `test`.`t2`.`a1` AS `a1`,`test`.`t2`.`a2` AS `a2`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where ((`test`.`t2`.`c` = 'i121') and (`test`.`t2`.`b` = 'a') and (`test`.`t2`.`a2` >= 'b'))
+Note	1003	select distinct `test`.`t2`.`a1` AS `a1`,`test`.`t2`.`a2` AS `a2`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where ((`test`.`t2`.`b` = 'a') and (`test`.`t2`.`c` = 'i121') and (`test`.`t2`.`a2` >= 'b'))
 explain select distinct a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	range	idx_t2_0,idx_t2_1,idx_t2_2	idx_t2_1	146	NULL	#	Using where; Using index for group-by
@@ -3187,6 +3187,106 @@ a	b
 drop table t1;
 End of 5.1 tests
 #
+# MDEV-765 lp:825075 - Wrong result with GROUP BY + multipart key + MIN/MAX loose scan
+#
+CREATE TABLE t1 (a varchar(1), b varchar(1), KEY (b,a));
+INSERT INTO t1 VALUES
+('0',NULL),('9',NULL),('8','c'),('4','d'),('7','d'),(NULL,'f'),
+('7','f'),('8','g'),(NULL,'j');
+explain
+SELECT max(a) , b FROM t1 WHERE a IS NULL OR b = 'z' GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	b	b	8	NULL	9	Using where; Using index
+SELECT max(a) , b FROM t1 WHERE a IS NULL OR b = 'z' GROUP BY b;
+max(a)	b
+NULL	f
+NULL	j
+explain
+SELECT b, min(a) FROM t1 WHERE a = '7' OR b = 'z' GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	b	b	8	NULL	9	Using where; Using index
+SELECT b, min(a) FROM t1 WHERE a = '7' OR b = 'z' GROUP BY b;
+b	min(a)
+d	7
+f	7
+explain
+SELECT b, min(a) FROM t1 WHERE (a = b OR b = 'd' OR b is NULL) GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	b	b	8	NULL	9	Using where; Using index
+SELECT b, min(a) FROM t1 WHERE (a = b OR b = 'd' OR b is NULL) GROUP BY b;
+b	min(a)
+NULL	0
+d	4
+explain
+SELECT b, min(a) FROM t1 WHERE a > ('0' = b) AND b = 'z' GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	b	b	4	const	1	Using where; Using index
+SELECT b, min(a) FROM t1 WHERE a > ('0' = b) AND b = 'z' GROUP BY b;
+b	min(a)
+explain
+SELECT b, min(a) FROM t1 WHERE a > '0' AND (b < (a = '7')) GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	b	8	NULL	9	Using where; Using index
+SELECT b, min(a) FROM t1 WHERE a > '0' AND (b < (a = '7')) GROUP BY b;
+b	min(a)
+d	7
+f	7
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: 'c'
+Warning	1292	Truncated incorrect DOUBLE value: 'd'
+Warning	1292	Truncated incorrect DOUBLE value: 'd'
+Warning	1292	Truncated incorrect DOUBLE value: 'f'
+Warning	1292	Truncated incorrect DOUBLE value: 'g'
+explain
+SELECT b, min(a) FROM t1 WHERE (a > '0' AND (a > '1' OR b = 'd')) GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	b	b	8	NULL	9	Using where; Using index
+SELECT b, min(a) FROM t1 WHERE (a > '0' AND (a > '1' OR b = 'd')) GROUP BY b;
+b	min(a)
+NULL	9
+c	8
+d	4
+f	7
+g	8
+drop table t1;
+#
+# MDEV-4140 Wrong result with GROUP BY + multipart key + MIN/MAX loose scan and a subquery
+#
+CREATE TABLE t1 (a int, b int, KEY (b, a)) ;
+INSERT INTO t1 VALUES (0,99),(9,99),(4,0),(7,0),(99,0),(7,0),(8,0),(99,0),(1,0);
+CREATE TABLE t2 (c int) ;
+INSERT INTO t2 VALUES (0),(1);
+EXPLAIN
+SELECT MIN(a), b FROM t1 WHERE a > 0 GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	NULL	b	10	NULL	10	Using where; Using index for group-by
+SELECT MIN(a), b FROM t1 WHERE a > 0 GROUP BY b;
+MIN(a)	b
+1	0
+9	99
+EXPLAIN
+SELECT MIN(a), b FROM t1 WHERE a > ( SELECT c FROM t2 WHERE c = 0 ) GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	range	NULL	b	10	NULL	10	Using where; Using index for group-by
+2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
+SELECT MIN(a), b FROM t1 WHERE a > ( SELECT c FROM t2 WHERE c = 0 ) GROUP BY b;
+MIN(a)	b
+1	0
+9	99
+EXPLAIN
+SELECT MIN(a), b FROM t1 WHERE a > ( SELECT min(c) FROM t2, t1 t1a, t1 t1b WHERE c = 0 ) GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	index	NULL	b	10	NULL	9	Using where; Using index
+2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
+2	SUBQUERY	t1a	index	NULL	b	10	NULL	9	Using index; Using join buffer (flat, BNL join)
+2	SUBQUERY	t1b	index	NULL	b	10	NULL	9	Using index; Using join buffer (incremental, BNL join)
+SELECT MIN(a), b FROM t1 WHERE a > ( SELECT min(c) FROM t2, t1 t1a, t1 t1b WHERE c = 0 ) GROUP BY b;
+MIN(a)	b
+1	0
+9	99
+drop table t1, t2;
+End of 5.3 tests
+#
 # WL#3220 (Loose index scan for COUNT DISTINCT)
 #
 CREATE TABLE t1 (a INT, b INT, c INT, KEY (a,b));
diff --git a/mysql-test/r/group_min_max_innodb.result b/mysql-test/r/group_min_max_innodb.result
index 0e7841e979d..320c4b2b750 100644
--- a/mysql-test/r/group_min_max_innodb.result
+++ b/mysql-test/r/group_min_max_innodb.result
@@ -70,7 +70,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	index	NULL	PRIMARY	5	NULL	4	Using index; Using temporary
 explain select distinct f1, f2 from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	NULL	PRIMARY	5	NULL	3	Using index for group-by; Using temporary
+1	SIMPLE	t1	index	NULL	PRIMARY	5	NULL	4	Using index
 drop table t1;
 create table t1(pk int primary key) engine=innodb;
 create view v1 as select pk from t1 where pk < 20;
diff --git a/mysql-test/r/having.result b/mysql-test/r/having.result
index 5961a84cddc..a0a4fc42e2d 100644
--- a/mysql-test/r/having.result
+++ b/mysql-test/r/having.result
@@ -473,7 +473,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	table2	const	PRIMARY	PRIMARY	4	const	1	100.00	Using filesort
 1	SIMPLE	table1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 Warnings:
-Note	1003	select `test`.`table1`.`f1` AS `f1`,7 AS `f2` from `test`.`t1` `table1` join `test`.`t1` `table2` where ((`test`.`table1`.`f3` = 9)) group by `test`.`table1`.`f1`,7 having ((7 = 8) and (`test`.`table1`.`f1` >= 6))
+Note	1003	select `test`.`table1`.`f1` AS `f1`,7 AS `f2` from `test`.`t1` `table1` join `test`.`t1` `table2` where (`test`.`table1`.`f3` = 9) group by `test`.`table1`.`f1`,7 having ((7 = 8) and (`test`.`table1`.`f1` >= 6))
 EXPLAIN EXTENDED
 SELECT table1.f1, table2.f2
 FROM t1 AS table1
@@ -485,7 +485,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	table2	const	PRIMARY	PRIMARY	4	const	1	100.00	Using filesort
 1	SIMPLE	table1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 Warnings:
-Note	1003	select `test`.`table1`.`f1` AS `f1`,7 AS `f2` from `test`.`t1` `table1` join `test`.`t1` `table2` where ((`test`.`table1`.`f3` = 9)) group by `test`.`table1`.`f1`,7 having (7 = 8)
+Note	1003	select `test`.`table1`.`f1` AS `f1`,7 AS `f2` from `test`.`t1` `table1` join `test`.`t1` `table2` where (`test`.`table1`.`f3` = 9) group by `test`.`table1`.`f1`,7 having (7 = 8)
 DROP TABLE t1;
 #
 # Bug#52336 Segfault / crash in 5.1 copy_fields (param=0x9872980) at sql_select.cc:15355
diff --git a/mysql-test/r/information_schema-big.result b/mysql-test/r/information_schema-big.result
index 3d4fa27859d..c0016a8e5c3 100644
--- a/mysql-test/r/information_schema-big.result
+++ b/mysql-test/r/information_schema-big.result
@@ -36,6 +36,7 @@ KEY_COLUMN_USAGE	CONSTRAINT_SCHEMA
 PARAMETERS	SPECIFIC_SCHEMA
 PARTITIONS	TABLE_SCHEMA
 PLUGINS	PLUGIN_NAME
+ALL_PLUGINS	PLUGIN_NAME
 PROCESSLIST	ID
 PROFILING	QUERY_ID
 REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
@@ -88,6 +89,7 @@ KEY_COLUMN_USAGE	CONSTRAINT_SCHEMA
 PARAMETERS	SPECIFIC_SCHEMA
 PARTITIONS	TABLE_SCHEMA
 PLUGINS	PLUGIN_NAME
+ALL_PLUGINS	PLUGIN_NAME
 PROCESSLIST	ID
 PROFILING	QUERY_ID
 REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
diff --git a/mysql-test/r/information_schema.result b/mysql-test/r/information_schema.result
index a30fe668490..a7051f275d7 100644
--- a/mysql-test/r/information_schema.result
+++ b/mysql-test/r/information_schema.result
@@ -46,6 +46,7 @@ table_name not like 'ndb_%' AND table_name not like 'innodb_%' AND
 table_name not like 'pbxt_%' AND table_name not like 'xtradb_%';
 select * from v1;
 c
+ALL_PLUGINS
 CHARACTER_SETS
 CLIENT_STATISTICS
 COLLATIONS
@@ -802,6 +803,7 @@ information_schema	PARTITIONS	PARTITION_EXPRESSION
 information_schema	PARTITIONS	SUBPARTITION_EXPRESSION
 information_schema	PARTITIONS	PARTITION_DESCRIPTION
 information_schema	PLUGINS	PLUGIN_DESCRIPTION
+information_schema	ALL_PLUGINS	PLUGIN_DESCRIPTION
 information_schema	PROCESSLIST	INFO
 information_schema	ROUTINES	DTD_IDENTIFIER
 information_schema	ROUTINES	ROUTINE_DEFINITION
@@ -1180,7 +1182,7 @@ group by column_type order by num;
 column_type	group_concat(table_schema, '.', table_name)	num
 varchar(27)	information_schema.COLUMNS	1
 varchar(7)	information_schema.ROUTINES,information_schema.VIEWS	2
-varchar(20)	information_schema.FILES,information_schema.FILES,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PROFILING	6
+varchar(20)	information_schema.FILES,information_schema.FILES,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.PROFILING	9
 create table t1(f1 char(1) not null, f2 char(9) not null)
 default character set utf8;
 select CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH from
diff --git a/mysql-test/r/information_schema_all_engines.result b/mysql-test/r/information_schema_all_engines.result
index 455f2e36ffc..8b1aff8a209 100644
--- a/mysql-test/r/information_schema_all_engines.result
+++ b/mysql-test/r/information_schema_all_engines.result
@@ -1,6 +1,7 @@
 use INFORMATION_SCHEMA;
 show tables;
 Tables_in_information_schema
+ALL_PLUGINS
 CHARACTER_SETS
 CLIENT_STATISTICS
 COLLATIONS
@@ -74,6 +75,7 @@ c2.table_name = t.table_name AND
 c2.column_name LIKE '%SCHEMA%'
         ) order by t.table_name;
 table_name	column_name
+ALL_PLUGINS	PLUGIN_NAME
 CHARACTER_SETS	CHARACTER_SET_NAME
 CLIENT_STATISTICS	CLIENT
 COLLATIONS	COLLATION_NAME
@@ -147,6 +149,7 @@ c2.table_name = t.table_name AND
 c2.column_name LIKE '%SCHEMA%'
         ) order by t.table_name;
 table_name	column_name
+ALL_PLUGINS	PLUGIN_NAME
 CHARACTER_SETS	CHARACTER_SET_NAME
 CLIENT_STATISTICS	CLIENT
 COLLATIONS	COLLATION_NAME
@@ -205,7 +208,7 @@ USER_PRIVILEGES	GRANTEE
 USER_STATISTICS	USER
 VIEWS	TABLE_SCHEMA
 XTRADB_ADMIN_COMMAND	result_message
-select 1 as f1 from information_schema.tables  where "CHARACTER_SETS"=
+select 1 as f1 from information_schema.tables  where "ALL_PLUGINS"=
 (select cast(table_name as char)  from information_schema.tables
 order by table_name limit 1) limit 1;
 f1
@@ -226,6 +229,7 @@ c2.table_schema='information_schema' and
 group by c2.column_type order by num limit 1)
 group by t.table_name order by num1, t.table_name;
 table_name	group_concat(t.table_schema, '.', t.table_name)	num1
+ALL_PLUGINS	information_schema.ALL_PLUGINS	1
 CHARACTER_SETS	information_schema.CHARACTER_SETS	1
 CLIENT_STATISTICS	information_schema.CLIENT_STATISTICS	1
 COLLATIONS	information_schema.COLLATIONS	1
@@ -288,6 +292,7 @@ VIEWS	information_schema.VIEWS	1
 +---------------------------------------+
 Database: information_schema
 |                Tables                 |
+| ALL_PLUGINS                           |
 | CHARACTER_SETS                        |
 | CLIENT_STATISTICS                     |
 | COLLATIONS                            |
@@ -351,6 +356,7 @@ Database: information_schema
 +---------------------------------------+
 Database: INFORMATION_SCHEMA
 |                Tables                 |
+| ALL_PLUGINS                           |
 | CHARACTER_SETS                        |
 | CLIENT_STATISTICS                     |
 | COLLATIONS                            |
@@ -417,5 +423,5 @@ Wildcard: inf_rmation_schema
 | information_schema |
 SELECT table_schema, count(*) FROM information_schema.TABLES WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test', 'mysqltest') AND table_name<>'ndb_binlog_index' AND table_name<>'ndb_apply_status' GROUP BY TABLE_SCHEMA;
 table_schema	count(*)
-information_schema	58
+information_schema	59
 mysql	26
diff --git a/mysql-test/r/innodb_ext_key.result b/mysql-test/r/innodb_ext_key.result
index 4e441245a39..0da4feaf26f 100644
--- a/mysql-test/r/innodb_ext_key.result
+++ b/mysql-test/r/innodb_ext_key.result
@@ -731,6 +731,7 @@ CREATE TABLE t2 (b int) ENGINE=MyISAM;
 INSERT INTO t1 (a) VALUES (4), (6);
 INSERT INTO t2 (b) VALUES (0), (8);
 set @save_optimizer_switch=@@optimizer_switch;
+set @save_join_cache_level=@@join_cache_level;
 SET join_cache_level=3;
 SET optimizer_switch='join_cache_hashed=on';
 SET optimizer_switch='join_cache_bka=on';
@@ -742,6 +743,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	hash_ALL	NULL	#hash#$hj	5	test.t1.a	2	Using where; Using join buffer (flat, BNLH join)
 SELECT * FROM t1, t2 WHERE b=a;
 a	b
+set join_cache_level=@save_join_cache_level;
 set optimizer_switch=@save_optimizer_switch;
 DROP TABLE t1,t2;
 #
@@ -772,5 +774,97 @@ INSERT INTO t1 (c2, c3, c4) VALUES (58291525, 2580, 'foobar')
 ON DUPLICATE KEY UPDATE c4 = VALUES(c4);
 set optimizer_switch=@save_optimizer_switch;
 DROP TABLE t1;
+#
+# Bug mdev-4220: using ref instead of eq_ref
+#                with extended_keys=on   
+# (performance regression introduced in the patch for mdev-3851)
+#
+set @save_optimizer_switch=@@optimizer_switch;
+create table t1 (a int not null) engine=innodb;
+insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t2 (
+pk int primary key, a int not null, b int, unique(a)
+)engine=innodb;
+insert into t2
+select 
+A.a + 10 * B.a, A.a + 10 * B.a, A.a + 10 * B.a 
+from t1 A, t1 B;
+set optimizer_switch='extended_keys=off';
+explain 
+select * from t1, t2 where t2.a=t1.a and t2.b < 2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	
+1	SIMPLE	t2	eq_ref	a	a	4	test.t1.a	1	Using where
+flush status;
+select * from t1, t2 where t2.a=t1.a and t2.b < 2;
+a	pk	a	b
+0	0	0	0
+1	1	1	1
+show status like 'handler_read%';
+Variable_name	Value
+Handler_read_first	0
+Handler_read_key	10
+Handler_read_last	0
+Handler_read_next	0
+Handler_read_prev	0
+Handler_read_rnd	0
+Handler_read_rnd_deleted	0
+Handler_read_rnd_next	11
+set optimizer_switch='extended_keys=on';
+explain 
+select * from t1, t2 where t2.a=t1.a and t2.b < 2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	
+1	SIMPLE	t2	eq_ref	a	a	4	test.t1.a	1	Using where
+flush status;
+select * from t1, t2 where t2.a=t1.a and t2.b < 2;
+a	pk	a	b
+0	0	0	0
+1	1	1	1
+show status like 'handler_read%';
+Variable_name	Value
+Handler_read_first	0
+Handler_read_key	10
+Handler_read_last	0
+Handler_read_next	0
+Handler_read_prev	0
+Handler_read_rnd	0
+Handler_read_rnd_deleted	0
+Handler_read_rnd_next	11
+drop table t1,t2;
+create table t1(a int) engine=myisam;
+insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t2(a int) engine=myisam;
+insert into t2 select A.a + 10*B.a + 100*C.a from t1 A, t1 B, t1 C;
+create table t3 (
+pk1 int not null, pk2 int not null, col1 int not null, col2 int not null)
+engine=innodb;
+insert into t3 select a,a,a,a from t2;
+alter table t3 add primary key (pk1, pk2);
+alter table t3 add  key (col1, col2);
+set optimizer_switch='extended_keys=off';
+explain 
+select * from t1, t3 where t3.col1=t1.a and  t3.col2=t1.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	#	Using where
+1	SIMPLE	t3	ref	col1	col1	8	test.t1.a,test.t1.a	#	Using index
+explain 
+select * from t1, t3 where t3.col1=t1.a and  t3.col2=t1.a and t3.pk1=t1.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	#	Using where
+1	SIMPLE	t3	ref	PRIMARY,col1	PRIMARY	4	test.t1.a	#	Using where
+set optimizer_switch='extended_keys=on';
+explain 
+select * from t1, t3 where t3.col1=t1.a and  t3.col2=t1.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	#	Using where
+1	SIMPLE	t3	ref	col1	col1	8	test.t1.a,test.t1.a	#	Using index
+explain 
+select * from t1, t3 where t3.col1=t1.a and  t3.col2=t1.a and t3.pk1=t1.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	#	Using where
+1	SIMPLE	t3	ref	PRIMARY,col1	col1	12	test.t1.a,test.t1.a,test.t1.a	#	Using index
+drop table t1,t2,t3;
+set optimizer_switch=@save_optimizer_switch;
 set optimizer_switch=@save_ext_key_optimizer_switch;
 SET SESSION STORAGE_ENGINE=DEFAULT;
diff --git a/mysql-test/r/innodb_mysql_sync.result b/mysql-test/r/innodb_mysql_sync.result
index 044e582ceb6..7c41ffec344 100644
--- a/mysql-test/r/innodb_mysql_sync.result
+++ b/mysql-test/r/innodb_mysql_sync.result
@@ -18,10 +18,10 @@ SET DEBUG_SYNC='now SIGNAL table_altered';
 # Complete optimization
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	note	Table does not support optimize, doing recreate + analyze instead
-test.t1	optimize	error	Got error -1 "Internal error < 0 (Not system error)" from storage engine
+test.t1	optimize	error	Got error -1 "Internal error < 0 (Not system error)" from storage engine MEMORY
 test.t1	optimize	status	Operation failed
 Warnings:
-Error	1030	Got error -1 "Internal error < 0 (Not system error)" from storage engine
+Error	1030	Got error -1 "Internal error < 0 (Not system error)" from storage engine MEMORY
 DROP TABLE t1;
 SET DEBUG_SYNC='RESET';
 #
diff --git a/mysql-test/r/join.result b/mysql-test/r/join.result
index ba16d7dd9de..1d045d0a58d 100644
--- a/mysql-test/r/join.result
+++ b/mysql-test/r/join.result
@@ -1473,3 +1473,44 @@ dog_id	dog_id	birthday	dog_id	t_id	birthday	dog_id	t_id	birthday	a_id	dog_id
 SET optimizer_switch=@tmp_optimizer_switch;
 DROP TABLE t1,t2,t3,t4,t5;
 SET optimizer_switch=@save_optimizer_switch;
+#
+# Bug #35268: Parser can't handle STRAIGHT_JOIN with USING
+#                   
+CREATE TABLE t1 (a int);
+INSERT INTO t1 (a) VALUES (1),(2),(3),(4),(5),(6),(7),(8);
+CREATE TABLE t2 (a int);
+INSERT INTO t2 (a) VALUES (1),(2),(3),(4);
+EXPLAIN
+SELECT t1.a FROM t1 NATURAL INNER JOIN t2 ORDER BY t1.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	4	Using temporary; Using filesort
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
+SELECT t1.a FROM t1 NATURAL INNER JOIN t2 ORDER BY t1.a;
+a
+1
+2
+3
+4
+EXPLAIN
+SELECT t1.a FROM t1 STRAIGHT_JOIN t2 USING(a) ORDER BY t1.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	8	Using temporary; Using filesort
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	4	Using where; Using join buffer (flat, BNL join)
+SELECT t1.a FROM t1 STRAIGHT_JOIN t2 USING(a) ORDER BY t1.a;
+a
+1
+2
+3
+4
+EXPLAIN
+SELECT t1.a FROM t1 NATURAL STRAIGHT_JOIN t2 ORDER BY t1.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	8	Using temporary; Using filesort
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	4	Using where; Using join buffer (flat, BNL join)
+SELECT t1.a FROM t1 NATURAL STRAIGHT_JOIN t2 ORDER BY t1.a;
+a
+1
+2
+3
+4
+DROP TABLE t1,t2;
diff --git a/mysql-test/r/join_cache.result b/mysql-test/r/join_cache.result
index bb455f2b39a..618ce7e540b 100644
--- a/mysql-test/r/join_cache.result
+++ b/mysql-test/r/join_cache.result
@@ -5595,7 +5595,7 @@ DROP TABLE t1,t2,t3;
 #
 CREATE TABLE t1 (
 col269 decimal(31,10) unsigned DEFAULT NULL,
-col280 multipoint DEFAULT NULL,
+col280 geometry DEFAULT NULL,
 col281 tinyint(1) DEFAULT NULL,
 col282 time NOT NULL,
 col284 datetime DEFAULT NULL,
diff --git a/mysql-test/r/join_nested.result b/mysql-test/r/join_nested.result
index dfb1a8c72d3..255714a7236 100644
--- a/mysql-test/r/join_nested.result
+++ b/mysql-test/r/join_nested.result
@@ -235,7 +235,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
 1	SIMPLE	t8	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t8`.`b` = `test`.`t7`.`b`))) where 1
+Note	1003	select `test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t7`.`b`) and (`test`.`t6`.`b` < 10))) where 1
 SELECT t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
 FROM (t6, t7)
 LEFT JOIN 
@@ -556,7 +556,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	SIMPLE	t8	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and ((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`))))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t7`.`b` = `test`.`t5`.`b`)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) where ((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)))
 SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
 t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
 FROM t0,t1
@@ -652,7 +652,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t8	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and ((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`))))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t7`.`b` = `test`.`t5`.`b`)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
 SELECT t9.a,t9.b
 FROM t9;
 a	b
@@ -858,7 +858,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t2	ref	idx_b	idx_b	5	test.t3.b	2	100.00	Using where
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t3` join `test`.`t4` left join (`test`.`t1` join `test`.`t2`) on(((`test`.`t2`.`a` > 0) and (`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t3`.`b`) and (`test`.`t2`.`b` = `test`.`t3`.`b`) and (`test`.`t3`.`b` is not null))) where 1
+Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t3` join `test`.`t4` left join (`test`.`t1` join `test`.`t2`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t3`.`b`) and (`test`.`t2`.`b` = `test`.`t3`.`b`) and (`test`.`t2`.`a` > 0) and (`test`.`t3`.`b` is not null))) where 1
 SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
 FROM (t3,t4)
 LEFT JOIN              
@@ -920,7 +920,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t2`.`a` > 0) and (`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and ((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`))))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t7`.`b` = `test`.`t5`.`b`)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t3`.`b` = `test`.`t4`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` > 0))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t3`.`b` = `test`.`t4`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
 INSERT INTO t4 VALUES (-3,12,0), (-4,13,0), (-1,11,0), (-3,11,0), (-5,15,0);
 INSERT INTO t5 VALUES (-3,11,0), (-2,12,0), (-3,13,0), (-4,12,0);
 CREATE INDEX idx_b ON t4(b);
@@ -972,7 +972,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	SIMPLE	t8	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t2`.`a` > 0) and (`test`.`t4`.`a` > 0) and (`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and ((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`))))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t5`.`a` > 0) and (`test`.`t7`.`b` = `test`.`t5`.`b`)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` > 0) and (`test`.`t4`.`a` > 0) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2) and (`test`.`t5`.`a` > 0)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
 INSERT INTO t8 VALUES (-3,12,0), (-1,14,0), (-5,15,0), (-1,11,0), (-4,13,0);
 CREATE INDEX idx_b ON t8(b);
 EXPLAIN EXTENDED
@@ -1022,7 +1022,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	SIMPLE	t8	ref	idx_b	idx_b	5	test.t5.b	2	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t2`.`a` > 0) and (`test`.`t4`.`a` > 0) and (`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t8`.`a` >= 0) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t5`.`a` > 0) and (`test`.`t7`.`b` = `test`.`t5`.`b`)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` > 0) and (`test`.`t4`.`a` > 0) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t8`.`a` >= 0) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2) and (`test`.`t5`.`a` > 0)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
 INSERT INTO t1 VALUES (-1,133,0), (-2,12,0), (-3,11,0), (-5,15,0);
 CREATE INDEX idx_b ON t1(b);
 CREATE INDEX idx_a ON t0(a);
@@ -1073,7 +1073,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	SIMPLE	t8	ref	idx_b	idx_b	5	test.t5.b	2	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t7`.`b` = `test`.`t5`.`b`)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2) and (`test`.`t1`.`a` > 0))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2) and (`test`.`t1`.`a` > 0))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
 SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
 t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
 FROM t0,t1
@@ -1215,7 +1215,7 @@ EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	index	NULL	a	5	NULL	21	Using index
 1	SIMPLE	t3	index	c	c	5	NULL	6	Using where; Using index
-1	SIMPLE	t2	ref	b	b	5	test.t3.c	2	Using where; Using index
+1	SIMPLE	t2	ref	b	b	5	test.t3.c	2	Using index
 SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
 a	b	c
 NULL	0	0
@@ -1286,7 +1286,7 @@ EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	index	NULL	a	5	NULL	21	Using index
 1	SIMPLE	t3	index	c	c	5	NULL	0	Using where; Using index
-1	SIMPLE	t2	ref	b	b	5	test.t3.c	2	Using where; Using index
+1	SIMPLE	t2	ref	b	b	5	test.t3.c	2	Using index
 SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
 a	b	c
 NULL	NULL	NULL
@@ -1843,7 +1843,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	1	100.00	Using where; Not exists
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	0	0.00	Using where
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`b` AS `b` from `test`.`t1` left join (`test`.`t2` left join `test`.`t3` on(((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t3`.`b` = `test`.`t1`.`a`))) left join `test`.`t4` on((`test`.`t4`.`b` = `test`.`t3`.`a`))) on((`test`.`t2`.`a` = `test`.`t1`.`a`)) where isnull(`test`.`t3`.`a`)
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`b` AS `b` from `test`.`t1` left join (`test`.`t2` left join `test`.`t3` on((`test`.`t3`.`b` = `test`.`t1`.`a`)) left join `test`.`t4` on((`test`.`t4`.`b` = `test`.`t3`.`a`))) on((`test`.`t2`.`a` = `test`.`t1`.`a`)) where isnull(`test`.`t3`.`a`)
 DROP TABLE t1,t2,t3,t4;
 SET optimizer_switch=@save_optimizer_switch;
 End of 5.0 tests
diff --git a/mysql-test/r/join_nested_jcl6.result b/mysql-test/r/join_nested_jcl6.result
index 69eb4532c73..c744df9e2fe 100644
--- a/mysql-test/r/join_nested_jcl6.result
+++ b/mysql-test/r/join_nested_jcl6.result
@@ -246,7 +246,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
 1	SIMPLE	t8	hash_ALL	NULL	#hash#$hj	5	test.t7.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 Warnings:
-Note	1003	select `test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t8`.`b` = `test`.`t7`.`b`) and (`test`.`t7`.`b` is not null))) where 1
+Note	1003	select `test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t7`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t7`.`b` is not null))) where 1
 SELECT t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
 FROM (t6, t7)
 LEFT JOIN 
@@ -567,7 +567,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t8	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) where ((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)))
 SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
 t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
 FROM t0,t1
@@ -663,7 +663,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t8	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
 SELECT t9.a,t9.b
 FROM t9;
 a	b
@@ -869,7 +869,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t2	ref	idx_b	idx_b	5	test.t3.b	2	100.00	Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t3` join `test`.`t4` left join (`test`.`t1` join `test`.`t2`) on(((`test`.`t2`.`a` > 0) and (`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t3`.`b`) and (`test`.`t2`.`b` = `test`.`t3`.`b`) and (`test`.`t3`.`b` is not null))) where 1
+Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t3` join `test`.`t4` left join (`test`.`t1` join `test`.`t2`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t3`.`b`) and (`test`.`t2`.`b` = `test`.`t3`.`b`) and (`test`.`t2`.`a` > 0) and (`test`.`t3`.`b` is not null))) where 1
 SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
 FROM (t3,t4)
 LEFT JOIN              
@@ -931,7 +931,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t2`.`a` > 0) and (`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t3`.`b` = `test`.`t4`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` > 0) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t3`.`b` = `test`.`t4`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`)))
 INSERT INTO t4 VALUES (-3,12,0), (-4,13,0), (-1,11,0), (-3,11,0), (-5,15,0);
 INSERT INTO t5 VALUES (-3,11,0), (-2,12,0), (-3,13,0), (-4,12,0);
 CREATE INDEX idx_b ON t4(b);
@@ -983,7 +983,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t8	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t2`.`a` > 0) and (`test`.`t4`.`a` > 0) and (`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t5`.`a` > 0) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` > 0) and (`test`.`t4`.`a` > 0) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2) and (`test`.`t5`.`a` > 0) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
 INSERT INTO t8 VALUES (-3,12,0), (-1,14,0), (-5,15,0), (-1,11,0), (-4,13,0);
 CREATE INDEX idx_b ON t8(b);
 EXPLAIN EXTENDED
@@ -1033,7 +1033,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t7	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 1	SIMPLE	t8	ref	idx_b	idx_b	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t2`.`a` > 0) and (`test`.`t4`.`a` > 0) and (`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t8`.`a` >= 0) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t5`.`a` > 0) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` > 0) and (`test`.`t4`.`a` > 0) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t8`.`a` >= 0) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2) and (`test`.`t5`.`a` > 0) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
 INSERT INTO t1 VALUES (-1,133,0), (-2,12,0), (-3,11,0), (-5,15,0);
 CREATE INDEX idx_b ON t1(b);
 CREATE INDEX idx_a ON t0(a);
@@ -1082,9 +1082,9 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t5	ALL	idx_b	NULL	NULL	NULL	7	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t7	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
-1	SIMPLE	t8	ref	idx_b	idx_b	5	test.t7.b	2	100.00	Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	t8	ref	idx_b	idx_b	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t6`.`b` < 10) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t7`.`b` is not null)))) on(((`test`.`t6`.`b` >= 2) and (`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and (((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t5`.`b` = `test`.`t0`.`b`)) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2) and (`test`.`t1`.`a` > 0))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = 1) and (`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2) and (`test`.`t5`.`b` is not null)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2) and (`test`.`t1`.`a` > 0))) join `test`.`t9` where ((`test`.`t0`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t9`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t8`.`b` = `test`.`t9`.`b`) or isnull(`test`.`t8`.`c`)))
 SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
 t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
 FROM t0,t1
@@ -1226,7 +1226,7 @@ EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	index	NULL	a	5	NULL	21	Using index
 1	SIMPLE	t3	index	c	c	5	NULL	6	Using where; Using index
-1	SIMPLE	t2	ref	b	b	5	test.t3.c	2	Using where; Using index
+1	SIMPLE	t2	ref	b	b	5	test.t3.c	2	Using index
 SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
 a	b	c
 NULL	0	0
@@ -1297,7 +1297,7 @@ EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	index	NULL	a	5	NULL	21	Using index
 1	SIMPLE	t3	index	c	c	5	NULL	0	Using where; Using index
-1	SIMPLE	t2	ref	b	b	5	test.t3.c	2	Using where; Using index
+1	SIMPLE	t2	ref	b	b	5	test.t3.c	2	Using index
 SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c;
 a	b	c
 NULL	NULL	NULL
@@ -1854,7 +1854,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t3	hash_ALL	NULL	#hash#$hj	5	test.t1.a	1	100.00	Using where; Not exists; Using join buffer (incremental, BNLH join)
 1	SIMPLE	t4	hash_ALL	NULL	#hash#$hj	5	test.t3.a	0	0.00	Using where; Using join buffer (incremental, BNLH join)
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`b` AS `b` from `test`.`t1` left join (`test`.`t2` left join `test`.`t3` on(((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t3`.`b` = `test`.`t1`.`a`))) left join `test`.`t4` on(((`test`.`t4`.`b` = `test`.`t3`.`a`) and (`test`.`t3`.`a` is not null)))) on((`test`.`t2`.`a` = `test`.`t1`.`a`)) where isnull(`test`.`t3`.`a`)
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`b` AS `b` from `test`.`t1` left join (`test`.`t2` left join `test`.`t3` on((`test`.`t3`.`b` = `test`.`t1`.`a`)) left join `test`.`t4` on(((`test`.`t4`.`b` = `test`.`t3`.`a`) and (`test`.`t3`.`a` is not null)))) on((`test`.`t2`.`a` = `test`.`t1`.`a`)) where isnull(`test`.`t3`.`a`)
 DROP TABLE t1,t2,t3,t4;
 SET optimizer_switch=@save_optimizer_switch;
 End of 5.0 tests
diff --git a/mysql-test/r/join_outer.result b/mysql-test/r/join_outer.result
index fd2a948847c..c28887d4ff2 100644
--- a/mysql-test/r/join_outer.result
+++ b/mysql-test/r/join_outer.result
@@ -2008,7 +2008,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	100.00	
 1	SIMPLE	t2	const	PRIMARY	PRIMARY	4	const	1	100.00	Using index
 Warnings:
-Note	1003	select 5 AS `pk` from `test`.`t2` join `test`.`t1` where (1) order by 5
+Note	1003	select 5 AS `pk` from `test`.`t2` join `test`.`t1` where 1 order by 5
 SELECT t1.pk FROM t2 JOIN t1 ON t2.pk = t1.a
 WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
 ORDER BY t1.pk;
diff --git a/mysql-test/r/join_outer_innodb.result b/mysql-test/r/join_outer_innodb.result
index 650946d8b06..0184e236d14 100644
--- a/mysql-test/r/join_outer_innodb.result
+++ b/mysql-test/r/join_outer_innodb.result
@@ -183,6 +183,296 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (incremental, BNL join)
 1	SIMPLE	t5	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (incremental, BNL join)
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t6b	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (incremental, BNL join)
 drop table t1,t2,t3,t4,t5,t6;
+#
+Bug mdev-4318: view over a complex query with outer joins
+#
+CREATE TABLE t1 (
+a1 int NOT NULL, a2 int NOT NULL, a3 int DEFAULT NULL, a4 tinyint NOT NULL,
+a5 int NOT NULL, a6 tinyint NOT NULL, a7 tinyint(4) DEFAULT NULL,
+a8 smallint(6) DEFAULT NULL, a9 smallint(6) DEFAULT NULL, a10 tinyint NOT NULL,
+PRIMARY KEY (a1), KEY a2 (a2), KEY a3 (a3), KEY a4 (a4), KEY a6 (a6),
+KEY a5 (a5), KEY a7 (a7), KEY a8 (a8), KEY a9 (a9)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t1 VALUES 
+(3360,5684,2219,1,316832,1,0,NULL,NULL,NULL),
+(3362,2754,597,2,316844,1,0,NULL,NULL,NULL),
+(3363,369,NULL,1,317295,1,0,NULL,NULL,NULL);
+Warnings:
+Warning	1048	Column 'a10' cannot be null
+Warning	1048	Column 'a10' cannot be null
+Warning	1048	Column 'a10' cannot be null
+CREATE TABLE t2 (
+b1 int NOT NULL, b2 int NOT NULL, PRIMARY KEY (b1,b2), KEY b2 (b2)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+CREATE TABLE t3 (
+c1 int NOT NULL, PRIMARY KEY (c1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t3 VALUES
+(1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11),(12),
+(1000),(1001),(1002),(1003),(9999);
+CREATE TABLE t4 (
+d1 int NOT NULL, PRIMARY KEY (d1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t4 VALUES (5674),(5676),(5680),(5684),(5685);
+CREATE TABLE t5 (
+e1 int NOT NULL, e2 varchar(64) NOT NULL, PRIMARY KEY (e1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t5 VALUES
+(5684,'51a5de7a9f56314e082094d78f58be082c3cf0c1'),
+(5685,'754dc8292cb9f5eb9ade126fe7e961c62412a349'),
+(5686,'75eeb33f1c819bac21f6d023b4c5b24185eeda5c');
+CREATE TABLE t6 (
+f1 int NOT NULL, PRIMARY KEY (f1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t6 VALUES (5542),(5620),(5686);
+CREATE TABLE t7 (
+g1 tinyint NOT NULL DEFAULT '0', g2 varchar(20) NOT NULL, PRIMARY KEY (g1)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t7 VALUES
+(1,'60feec2b20ed19f55ad0'),(3,'9ddb18bff7fcbd1e3133'),
+(5,'a05599df9222bb160d11'),(7,'e31bae372f7d01df0589'),
+(9,'8f8372dd7fc8eb46c8a3'),(11,'f8d0e28529e990a09309');
+CREATE TABLE t8 (
+h1 tinyint NOT NULL, h2 varchar(128) DEFAULT NULL, PRIMARY KEY (h1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t8 VALUES (1,'b'),(2,'c'),(3,'d'),(4,'e');
+CREATE TABLE t9 (
+i1 tinyint NOT NULL, i2 varchar(7) NOT NULL, i3 varchar(128) NOT NULL,
+PRIMARY KEY (i1,i2), KEY i2 (i2), KEY i3 (i3)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t9 VALUES
+(2,'a','07630d223c7e5f7b1feb19b3caafb0833fd028eb'),
+(3,'b','1ca53dcc50b68af86f4b1b4676dbed917b543c30'),
+(1,'b','2c01ac36c1ce9a7de66be89f85d8aa5f0052e2e8'),
+(4,'a','496c486b3a9edc439477fef7d34cbefdebba86df'),
+(3,'a','98bf72d8d467201058a5f69bd7709bfc74a8637e'),
+(2,'b','9a45425f6160fb59d7f8a02c721498d4ce945302'),
+(4,'b','9c9a7300f3e708f8e430f9f3376d966f5951f583'),
+(1,'a','c0af3f076b905f31cbb51af304b9c7ad539e0861');
+CREATE TABLE t10 (
+j1 tinyint NOT NULL, j2 varchar(20) NOT NULL, PRIMARY KEY (j1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t10 VALUES (1,'b'),(2,'c'),(3,'d');
+CREATE TABLE t11 (
+k1 int NOT NULL, k2 datetime DEFAULT NULL, k3 int DEFAULT NULL,
+k4 int DEFAULT NULL, PRIMARY KEY (k1), KEY k3 (k3), KEY k4 (k4)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t11 VALUES
+(317422,'2013-03-18 11:43:03',1,NULL),(317423,'2013-03-18 11:43:11',1,NULL),
+(317424,'2013-03-18 11:52:01',1,1),(317425,'2013-03-18 11:52:01',1,1),
+(317426,'2013-03-18 11:56:38',1,1),(317427,'2013-03-18 12:18:25',1,NULL),
+(317428,'2013-03-18 12:46:28',1,NULL),(317429,'2013-03-18 12:46:28',1,NULL),
+(317430,'2013-03-18 12:46:28',1,NULL),(317431,'2013-03-18 12:46:28',1,NULL),
+(317432,'2013-03-18 12:46:28',1,NULL),(317433,'2013-03-18 12:46:28',1,NULL),
+(317434,'2013-03-18 12:46:28',1,NULL),(317435,'2013-03-18 12:46:28',1,NULL),
+(317436,'2013-03-18 12:46:28',1,NULL),(317437,'2013-03-18 12:46:28',1,NULL),
+(317438,'2013-03-18 12:46:28',1,NULL),(317439,'2013-03-18 12:46:28',1,NULL),
+(317440,'2013-03-18 12:55:20',1,NULL),(317441,'2013-03-18 12:58:29',1,NULL),
+(317442,'2013-03-18 13:06:02',1,NULL),(317443,'2013-03-18 15:23:18',21,NULL);
+CREATE TABLE t12 (
+l1 int NOT NULL, l2 varchar(64) NOT NULL, PRIMARY KEY (l1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t12 VALUES
+(552,'59a498252ef59f96fbdc13a414abe244d8e8bc30'),
+(554,'c6025c7cb2d9dfb1be7ce4a61f35b45bb9e61ba3'),
+(555,'b245bcc672082bb6d10794b2b4ac972dd14b1cf5');
+CREATE TABLE t13 (
+m1 int NOT NULL, m2 int NOT NULL, m3 int NOT NULL,
+PRIMARY KEY (m1,m2,m3), KEY m3 (m3), KEY m2 (m2)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t13 VALUES (3324,43,4),(3332,263,1),(3348,27,3);
+CREATE TABLE t14 (
+n1 smallint NOT NULL, n2 varchar(64) NOT NULL, PRIMARY KEY (n1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t14 VALUES
+(21,'685bf7ca576af964c7cff564d5e4473b81499b8b'),
+(23,'b8e42dab1ab952406b3accfb47089c61478138a8'),
+(25,'3fea441e411db8c70bf039b50c8f18f59515be53'),
+(27,'998aecc30fd0e0b8a1cac6590e5eccc2d7822223');
+CREATE TABLE t15 (
+o1 smallint NOT NULL, PRIMARY KEY (o1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t15 VALUES (1),(3);
+CREATE TABLE t16 (
+p1 smallint NOT NULL, p2 varchar(7) NOT NULL, p3 varchar(64) NOT NULL,
+PRIMARY KEY (p1,p2)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t16 VALUES
+(1,'a','66bdbb389456f3ae97206da115a7b397c31400e8'),
+(1,'b','66bdbb389456f3ae97206da115a7b397c31400e8'),
+(3,'a','386c10e454278c6e27feb16258089166422f79b4'),
+(3,'b','386c10e454278c6e27feb16258089166422f79b4');
+create view v1 as select t3.c1,t5.e2,t1.a1,t14.n2,t16.p3,t10.j2,t7.g2,t11.k2,l3.l2,
+t9.i3,t12.l2 AS l_l2,l2.l2 AS l2_l2,l4.l1 AS l4_l1,t6.f1
+from
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+t1
+left join t2 on t1.a1 = t2.b1
+) 
+left join t3 on t2.b2 = t3.c1
+)
+left join t4 on t1.a2 = t4.d1
+)
+left join t5 on t4.d1 = t5.e1
+) 
+left join t6 on t1.a3 = t6.f1
+) 
+left join t5 e2 on t6.f1 = e2.e1
+) 
+join t7 on t1.a7 = t7.g1
+) 
+join t8 on t1.a4 = t8.h1
+) 
+join t9 on t8.h1 = t9.i1
+) 
+join t10 on t1.a6 = t10.j1
+)
+join t11 on t1.a5 = t11.k1
+) 
+left join t12 on t11.k3 = t12.l1
+) 
+left join t12 l2 on t11.k4 = l2.l1
+) 
+left join t13 on t1.a1 = t13.m1 and t13.m3 = 4
+)
+left join t12 l4 on l4.l1 = t13.m2
+) 
+left join t13 m2 on t1.a1 = m2.m1 and m2.m3 = 3
+)
+left join t12 l3 on l3.l1 = m2.m2
+)
+left join t14 on t1.a8 = t14.n1
+)
+left join t15 on t1.a9 = t15.o1
+)
+left join t16 on t15.o1 = t16.p1
+where t1.a10 = 1;
+explain select t3.c1,t5.e2,t1.a1,t14.n2,t16.p3,t10.j2,t7.g2,t11.k2,l3.l2,
+t9.i3,t12.l2 AS l_l2,l2.l2 AS l2_l2,l4.l1 AS l4_l1,t6.f1
+from
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+(
+t1
+left join t2 on t1.a1 = t2.b1
+) 
+left join t3 on t2.b2 = t3.c1
+)
+left join t4 on t1.a2 = t4.d1
+)
+left join t5 on t4.d1 = t5.e1
+) 
+left join t6 on t1.a3 = t6.f1
+) 
+left join t5 e2 on t6.f1 = e2.e1
+) 
+join t7 on t1.a7 = t7.g1
+) 
+join t8 on t1.a4 = t8.h1
+) 
+join t9 on t8.h1 = t9.i1
+) 
+join t10 on t1.a6 = t10.j1
+)
+join t11 on t1.a5 = t11.k1
+) 
+left join t12 on t11.k3 = t12.l1
+) 
+left join t12 l2 on t11.k4 = l2.l1
+) 
+left join t13 on t1.a1 = t13.m1 and t13.m3 = 4
+)
+left join t12 l4 on l4.l1 = t13.m2
+) 
+left join t13 m2 on t1.a1 = m2.m1 and m2.m3 = 3
+)
+left join t12 l3 on l3.l1 = m2.m2
+)
+left join t14 on t1.a8 = t14.n1
+)
+left join t15 on t1.a9 = t15.o1
+)
+left join t16 on t15.o1 = t16.p1
+where t1.a10 = 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	a4,a6,a5,a7	NULL	NULL	NULL	3	Using where
+1	SIMPLE	t2	ref	PRIMARY	PRIMARY	4	test.t1.a1	1	Using index
+1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.b2	1	Using where; Using index
+1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	test.t1.a2	1	Using index
+1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t4.d1	1	Using where
+1	SIMPLE	t6	eq_ref	PRIMARY	PRIMARY	4	test.t1.a3	1	Using where; Using index
+1	SIMPLE	t8	eq_ref	PRIMARY	PRIMARY	1	test.t1.a4	1	Using index
+1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	1	test.t1.a7	1	
+1	SIMPLE	t9	ref	PRIMARY	PRIMARY	1	test.t1.a4	1	
+1	SIMPLE	t11	eq_ref	PRIMARY	PRIMARY	4	test.t1.a5	1	
+1	SIMPLE	t12	eq_ref	PRIMARY	PRIMARY	4	test.t11.k3	1	Using where
+1	SIMPLE	l2	eq_ref	PRIMARY	PRIMARY	4	test.t11.k4	1	Using where
+1	SIMPLE	t13	ref	PRIMARY,m3	PRIMARY	4	test.t1.a1	1	Using where; Using index
+1	SIMPLE	l4	eq_ref	PRIMARY	PRIMARY	4	test.t13.m2	1	Using where; Using index
+1	SIMPLE	m2	ref	PRIMARY,m3	PRIMARY	4	test.t1.a1	1	Using where; Using index
+1	SIMPLE	l3	eq_ref	PRIMARY	PRIMARY	4	test.m2.m2	1	Using where
+1	SIMPLE	t14	eq_ref	PRIMARY	PRIMARY	2	test.t1.a8	1	Using where
+1	SIMPLE	t15	eq_ref	PRIMARY	PRIMARY	2	test.t1.a9	1	Using where; Using index
+1	SIMPLE	t16	ref	PRIMARY	PRIMARY	2	test.t15.o1	1	Using where
+1	SIMPLE	t10	ALL	PRIMARY	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+explain select * from v1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	a4,a6,a5,a7	NULL	NULL	NULL	3	Using where
+1	SIMPLE	t2	ref	PRIMARY	PRIMARY	4	test.t1.a1	1	Using index
+1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.b2	1	Using where; Using index
+1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	test.t1.a2	1	Using index
+1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t4.d1	1	Using where
+1	SIMPLE	t6	eq_ref	PRIMARY	PRIMARY	4	test.t1.a3	1	Using where; Using index
+1	SIMPLE	t8	eq_ref	PRIMARY	PRIMARY	1	test.t1.a4	1	Using index
+1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	1	test.t1.a7	1	
+1	SIMPLE	t9	ref	PRIMARY	PRIMARY	1	test.t1.a4	1	
+1	SIMPLE	t11	eq_ref	PRIMARY	PRIMARY	4	test.t1.a5	1	
+1	SIMPLE	t12	eq_ref	PRIMARY	PRIMARY	4	test.t11.k3	1	Using where
+1	SIMPLE	l2	eq_ref	PRIMARY	PRIMARY	4	test.t11.k4	1	Using where
+1	SIMPLE	t13	ref	PRIMARY,m3	PRIMARY	4	test.t1.a1	1	Using where; Using index
+1	SIMPLE	l4	eq_ref	PRIMARY	PRIMARY	4	test.t13.m2	1	Using where; Using index
+1	SIMPLE	m2	ref	PRIMARY,m3	PRIMARY	4	test.t1.a1	1	Using where; Using index
+1	SIMPLE	l3	eq_ref	PRIMARY	PRIMARY	4	test.m2.m2	1	Using where
+1	SIMPLE	t14	eq_ref	PRIMARY	PRIMARY	2	test.t1.a8	1	Using where
+1	SIMPLE	t15	eq_ref	PRIMARY	PRIMARY	2	test.t1.a9	1	Using where; Using index
+1	SIMPLE	t16	ref	PRIMARY	PRIMARY	2	test.t15.o1	1	Using where
+1	SIMPLE	t10	ALL	PRIMARY	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+drop view v1;
+drop table t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16;
diff --git a/mysql-test/r/join_outer_jcl6.result b/mysql-test/r/join_outer_jcl6.result
index d891f5c49b2..4efb6126cba 100644
--- a/mysql-test/r/join_outer_jcl6.result
+++ b/mysql-test/r/join_outer_jcl6.result
@@ -2019,7 +2019,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	100.00	
 1	SIMPLE	t2	const	PRIMARY	PRIMARY	4	const	1	100.00	Using index
 Warnings:
-Note	1003	select 5 AS `pk` from `test`.`t2` join `test`.`t1` where (1) order by 5
+Note	1003	select 5 AS `pk` from `test`.`t2` join `test`.`t1` where 1 order by 5
 SELECT t1.pk FROM t2 JOIN t1 ON t2.pk = t1.a
 WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
 ORDER BY t1.pk;
diff --git a/mysql-test/r/keywords.result b/mysql-test/r/keywords.result
index 58cb7430563..a3588017e97 100644
--- a/mysql-test/r/keywords.result
+++ b/mysql-test/r/keywords.result
@@ -269,3 +269,9 @@ call p2();
 DROP PROCEDURE p1;
 DROP PROCEDURE p2;
 DROP TABLE t1;
+create table option (option int not null);
+drop table option;
+set option=1;
+ERROR HY000: Unknown system variable 'option'
+set option option=1;
+ERROR HY000: Unknown system variable 'option'
diff --git a/mysql-test/r/log_tables.result b/mysql-test/r/log_tables.result
index 76784be1e16..18da8765d4b 100644
--- a/mysql-test/r/log_tables.result
+++ b/mysql-test/r/log_tables.result
@@ -251,7 +251,7 @@ alter table mysql.slow_log engine=NonExistentEngine;
 Warnings:
 Warning	1286	Unknown storage engine 'NonExistentEngine'
 alter table mysql.slow_log engine=memory;
-ERROR HY000: This storage engine cannot be used for log tables
+ERROR HY000: Storage engine MEMORY cannot be used for log tables
 set storage_engine= @save_storage_engine;
 drop table mysql.slow_log;
 drop table mysql.general_log;
diff --git a/mysql-test/r/lowercase_table2.result b/mysql-test/r/lowercase_table2.result
index c478d792e52..ac368a06bc9 100644
--- a/mysql-test/r/lowercase_table2.result
+++ b/mysql-test/r/lowercase_table2.result
@@ -272,7 +272,7 @@ Database	Table	In_use	Name_locked
 test	t_bug44738_uppercase	0	0
 # So attempt to create table with the same name should fail.
 create table t_bug44738_UPPERCASE (i int);
-ERROR HY000: Can't find file: 't_bug44738_uppercase' (errno: 2 "No such file or directory")
+ERROR HY000: Can't find file: './test/t_bug44738_uppercase.MYI' (errno: 2 "No such file or directory")
 # And should succeed after FLUSH TABLES.
 flush tables;
 create table t_bug44738_UPPERCASE (i int);
diff --git a/mysql-test/r/mdev316.result b/mysql-test/r/mdev316.result
index 43082769872..78272549e81 100644
--- a/mysql-test/r/mdev316.result
+++ b/mysql-test/r/mdev316.result
@@ -16,7 +16,7 @@ cast(convert(0x0030 using ucs2) as decimal(5.2))	cast(concat(convert(0x0030 usin
 0	0
 select cast(convert(_ucs2 0x0030 using latin1) as date), cast(concat(convert(_ucs2 0x0030 using latin1)) as date);
 cast(convert(_ucs2 0x0030 using latin1) as date)	cast(concat(convert(_ucs2 0x0030 using latin1)) as date)
-NULL	NULL
+0000-00-00	0000-00-00
 Warnings:
 Warning	1292	Incorrect datetime value: '0'
 Warning	1292	Incorrect datetime value: '0'
diff --git a/mysql-test/r/mdl_sync.result b/mysql-test/r/mdl_sync.result
index b2e71faf741..1c94f867a54 100644
--- a/mysql-test/r/mdl_sync.result
+++ b/mysql-test/r/mdl_sync.result
@@ -2850,7 +2850,7 @@ SET DEBUG_SYNC= 'now SIGNAL blocked';
 # Reaping: DROP DATABASE db1
 # Connection con2
 # Reaping: RENAME TABLE db1.t1 TO test.t1
-Got one of the listed errors
+ERROR 42S02: Table 'db1.t1' doesn't exist
 # Connection default
 CREATE DATABASE db1;
 CREATE TABLE test.t2 (a INT);
diff --git a/mysql-test/r/merge.result b/mysql-test/r/merge.result
index b5c85555ed8..5c4261e7d6d 100644
--- a/mysql-test/r/merge.result
+++ b/mysql-test/r/merge.result
@@ -580,25 +580,25 @@ select max(b) from t1 where a = 2;
 max(b)
 1
 drop table t3,t1,t2;
-CREATE TABLE t1 (c1 INT NOT NULL);
-CREATE TABLE t2 (c1 INT NOT NULL);
-INSERT INTO t1 VALUES (1);
-INSERT INTO t2 VALUES (2);
-CREATE TEMPORARY TABLE t3 (c1 INT NOT NULL) ENGINE=MRG_MYISAM UNION=(t1,t2);
-SELECT * FROM t3;
-c1
+create table t1 (a int not null);
+create table t2 (a int not null);
+insert into t1 values (1);
+insert into t2 values (2);
+create temporary table t3 (a int not null) ENGINE=MERGE UNION=(t1,t2);
+select * from t3;
+a
 1
 2
-CREATE TEMPORARY TABLE t4 (c1 INT NOT NULL);
-CREATE TEMPORARY TABLE t5 (c1 INT NOT NULL);
-INSERT INTO t4 VALUES (4);
-INSERT INTO t5 VALUES (5);
-CREATE TEMPORARY TABLE t6 (c1 INT NOT NULL) ENGINE=MRG_MYISAM UNION=(t4,t5);
-SELECT * FROM t6;
-c1
-4
-5
-DROP TABLE t6, t3, t1, t2, t4, t5;
+create temporary table t4 (a int not null);
+create temporary table t5 (a int not null);
+insert into t4 values (1);
+insert into t5 values (2);
+create temporary table t6 (a int not null) ENGINE=MERGE UNION=(t4,t5);
+select * from t6;
+a
+1
+2
+drop table t6, t3, t1, t2, t4, t5;
 create temporary table t1 (a int not null);
 create temporary table t2 (a int not null);
 insert into t1 values (1);
@@ -996,11 +996,6 @@ m1	CREATE TABLE `m1` (
   `a` int(11) DEFAULT NULL
 ) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1
 DROP TABLE t1, m1;
-CREATE TABLE t1(a INT, KEY(a)) ENGINE=merge;
-SELECT MAX(a) FROM t1;
-MAX(a)
-NULL
-DROP TABLE t1;
 CREATE TABLE t1(a INT);
 CREATE TABLE t2(a VARCHAR(10));
 CREATE TABLE m1(a INT) ENGINE=MERGE UNION=(t1, t2);
@@ -1935,9 +1930,9 @@ ALTER TABLE t2 UNION=(t3,t1);
 SELECT * FROM t2;
 ERROR HY000: Table 't3' is differently defined or of non-MyISAM type or doesn't exist
 DROP TABLE t1, t2, t3;
-CREATE TABLE t1 (c1 INT) ENGINE=MyISAM;
-CREATE TABLE t2 (c1 INT) ENGINE=MyISAM;
-CREATE TABLE t3 (c1 INT) ENGINE=MRG_MYISAM UNION=(t1,t2);
+CREATE TABLE t1 (c1 INT) ENGINE= MyISAM;
+CREATE TABLE t2 (c1 INT) ENGINE= MyISAM;
+CREATE TABLE t3 (c1 INT) ENGINE= MRG_MYISAM UNION= (t1, t2);
 INSERT INTO t1 VALUES (1);
 INSERT INTO t2 VALUES (2);
 SELECT * FROM t3;
@@ -2262,7 +2257,7 @@ CREATE TABLE m1(a int)engine=merge union=(t1,t2,t3,t4,t5,t6,t7);
 SELECT 1 FROM m1;
 1
 HANDLER m1 OPEN;
-ERROR HY000: Table storage engine for 'm1' doesn't have this option
+ERROR HY000: Storage engine MRG_MyISAM of the table `test`.`m1` doesn't have this option
 DROP TABLE m1,t1,t2,t3,t4,t5,t6,t7;
 SELECT 1 FROM m1;
 ERROR 42S02: Table 'test.m1' doesn't exist
@@ -2400,6 +2395,142 @@ Table	Op	Msg_type	Msg_text
 test.m1	repair	note	The storage engine for the table doesn't support repair
 DROP TABLE m1, t1;
 End of 5.1 tests
+# 
+# MDEV-4277: Crash inside mi_killed_in_mariadb() with myisammrg
+# 
+create table t1 (a int);
+insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t2 ( i int ) engine=myisam;
+insert into t2 values (1),(2);
+create table t3 (a int, b int, filler char(100), key(a), key(b)) engine=myisam;
+create table t4 like t3;
+insert into t3 
+select A.a+10*B.a+100*C.a, 
+A.a+10*B.a+100*C.a,
+'filler-data-FILLER-DATA-qqq' 
+from t1 A, t1 B, t1 C where C.a < 5;
+insert into t4
+select A.a+10*B.a+100*C.a, 
+A.a+10*B.a+100*C.a,
+'filler-data-FILLER-DATA-qqq' 
+from t1 A, t1 B, t1 C where C.a >= 5;
+create table t5 like t3;
+alter table t5 engine=merge;
+alter table t5 union(t3, t4);
+update t5 set b=999, a=999 where b>950;
+explain 
+select * from t2, t5 where t5.a=999 and t5.b=999;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	
+1	SIMPLE	t5	index_merge	a,b	a,b	5,5	NULL	6	Using intersect(a,b); Using where; Using join buffer (flat, BNL join)
+select * from t2, t5 where t5.a=999 and t5.b=999;
+i	a	b	filler
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+1	999	999	filler-data-FILLER-DATA-qqq
+2	999	999	filler-data-FILLER-DATA-qqq
+drop table t5;
+drop table t1,t2,t3,t4;
+End of 5.3 tests
+CREATE TABLE t1(a INT, KEY(a)) ENGINE=merge;
+SELECT MAX(a) FROM t1;
+MAX(a)
+NULL
+DROP TABLE t1;
 #
 # An additional test case for Bug#27430 Crash in subquery code
 # when in PS and table DDL changed after PREPARE
@@ -2752,7 +2883,7 @@ Table	Create Table
 m2	CREATE TEMPORARY TABLE `m2` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 SELECT * FROM m2;
 c1	c2
 111	121
@@ -2769,7 +2900,7 @@ Table	Create Table
 m1	CREATE TEMPORARY TABLE `m1` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 SELECT * FROM m1;
 c1	c2
 111	121
@@ -2858,7 +2989,7 @@ Table	Create Table
 m1	CREATE TEMPORARY TABLE `m1` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1
 INSERT INTO m1 VALUES (511, 521);
 SELECT * FROM m1;
 c1	c2
@@ -2909,7 +3040,7 @@ Table	Create Table
 m1	CREATE TEMPORARY TABLE `m1` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 #
 CREATE TABLE m2 SELECT * FROM m1;
 SHOW CREATE TABLE m2;
@@ -2961,7 +3092,7 @@ Table	Create Table
 m2	CREATE TABLE `m2` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 SELECT * FROM m2;
 c1	c2
 111	121
@@ -2987,7 +3118,7 @@ Table	Create Table
 m2	CREATE TEMPORARY TABLE `m2` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 SELECT * FROM m2;
 c1	c2
 111	121
@@ -3157,7 +3288,7 @@ Table	Create Table
 m2	CREATE TEMPORARY TABLE `m2` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 SELECT * FROM m2;
 c1	c2
 111	121
@@ -3174,7 +3305,7 @@ Table	Create Table
 m1	CREATE TEMPORARY TABLE `m1` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 SELECT * FROM m1;
 c1	c2
 111	121
@@ -3265,7 +3396,7 @@ Table	Create Table
 m1	CREATE TEMPORARY TABLE `m1` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1
 INSERT INTO m1 VALUES (511, 521);
 SELECT * FROM m1;
 c1	c2
@@ -3316,7 +3447,7 @@ Table	Create Table
 m1	CREATE TEMPORARY TABLE `m1` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 CREATE TABLE m2 SELECT * FROM m1;
 ERROR HY000: Table 'm2' was not locked with LOCK TABLES
 #
@@ -3361,14 +3492,14 @@ Table	Create Table
 m2	CREATE TEMPORARY TABLE `m2` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 LOCK TABLE m1 WRITE, m2 WRITE;
 SHOW CREATE TABLE m2;
 Table	Create Table
 m2	CREATE TEMPORARY TABLE `m2` (
   `c1` int(11) DEFAULT NULL,
   `c2` int(11) DEFAULT NULL
-) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
+) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1 INSERT_METHOD=LAST UNION=(`t1`,`t2`)
 SELECT * FROM m2;
 c1	c2
 111	121
@@ -3421,7 +3552,7 @@ CREATE TABLE t2 (c1 int);
 CREATE TABLE t3 (c1 int) ENGINE = MERGE UNION (t1,t2);
 START TRANSACTION;
 HANDLER t3 OPEN;
-ERROR HY000: Table storage engine for 't3' doesn't have this option
+ERROR HY000: Storage engine MRG_MyISAM of the table `test`.`t3` doesn't have this option
 DROP TABLE t1, t2, t3;
 # Connection default.
 # Disconnecting con1, all mdl_tickets must have been released.
diff --git a/mysql-test/r/multi_update.result b/mysql-test/r/multi_update.result
index 55e5db231a9..461673f5b21 100644
--- a/mysql-test/r/multi_update.result
+++ b/mysql-test/r/multi_update.result
@@ -689,6 +689,58 @@ DROP VIEW v1;
 DROP FUNCTION f1;
 DROP TABLE t1;
 #
+# MDEV-4123: Incorrect results after multi-table update or
+# assertion `!table || (!table->read_set ||
+# bitmap_is_set(table->read_set, field_index))' failure 
+#
+DROP TABLE IF EXISTS t1;
+Warnings:
+Note	1051	Unknown table 't1'
+CREATE TABLE t1 (
+id int(10) unsigned NOT NULL,
+level tinyint(3) unsigned NOT NULL,
+PRIMARY KEY (id)
+);
+INSERT INTO t1 VALUES (2519583,1);
+DROP TABLE IF EXISTS t2;
+Warnings:
+Note	1051	Unknown table 't2'
+CREATE TABLE t2 (
+club_id int(11) NOT NULL DEFAULT '0',
+profile_id int(11) NOT NULL DEFAULT '0',
+member_level_id int(11) NOT NULL DEFAULT '0',
+PRIMARY KEY (profile_id,club_id)
+);
+INSERT INTO t2 VALUES (2,2519583,12);
+DROP TABLE IF EXISTS t3;
+Warnings:
+Note	1051	Unknown table 't3'
+CREATE TABLE t3 (
+member_level_id int(11) unsigned NOT NULL DEFAULT '0',
+map_level int(11) unsigned NOT NULL DEFAULT '0',
+map_status int(11) unsigned NOT NULL DEFAULT '0',
+PRIMARY KEY (member_level_id)
+);
+INSERT INTO t3 VALUES (12,12,1);
+CREATE 
+VIEW v1 AS 
+select club_id,profile_id,
+map_level AS member_level_id,map_status AS member_status
+from (t2 tc join t3 map 
+on(((tc.member_level_id = map.member_level_id) and
+(club_id = 2))));
+select level, count(*) as cnt from t1 group by level;
+level	cnt
+1	1
+UPDATE t1 c LEFT JOIN v1 t ON (c.id = t.profile_id AND t.club_id = 2)
+SET c.level = IF (t.member_status IS NULL, 1, IF (t.member_status = 1, 2,3));
+select level, count(*) as cnt from t1 group by level;
+level	cnt
+2	1
+drop view v1;
+drop table t1,t2,t3;
+end of tests
+#
 # BUG#57373: Multi update+InnoDB reports ER_KEY_NOT_FOUND if a
 #            table is updated twice
 #
@@ -742,3 +794,4 @@ SELECT * FROM t2;
 col_int_key	pk_1	pk_2	col_int
 1	7	11	4
 DROP TABLE t1,t2;
+end of 5.5 tests
diff --git a/mysql-test/r/myisam-metadata.result b/mysql-test/r/myisam-metadata.result
new file mode 100644
index 00000000000..5192253d5d1
--- /dev/null
+++ b/mysql-test/r/myisam-metadata.result
@@ -0,0 +1,12 @@
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id INT PRIMARY KEY,
+a VARCHAR(100),
+INDEX(a)
+) ENGINE=MyISAM;
+ALTER TABLE t1 DISABLE KEYS;
+ALTER TABLE t1 ENABLE KEYS;
+SHOW TABLE STATUS LIKE 't1';
+Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
+t1	MyISAM	10	Dynamic	100000	27	#	#	#	0	NULL	#	#	#	latin1_swedish_ci	NULL		
+DROP TABLE t1;
diff --git a/mysql-test/r/myisam-system.result b/mysql-test/r/myisam-system.result
index 924e7885814..9d5a59459ec 100644
--- a/mysql-test/r/myisam-system.result
+++ b/mysql-test/r/myisam-system.result
@@ -2,12 +2,18 @@ drop table if exists t1,t2;
 create table t1 (a int) engine=myisam;
 drop table if exists t1;
 Warnings:
-Warning	2	Can't find file: 't1' (errno: 2 "No such file or directory")
+Warning	2	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 create table t1 (a int) engine=myisam;
+select * from t1;
+ERROR HY000: Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 drop table t1;
-Got one of the listed errors
+Warnings:
+Warning	2	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 create table t1 (a int) engine=myisam;
+select * from t1;
+ERROR HY000: File './test/t1.MYD' not found (Errcode: 2 "No such file or directory")
 drop table t1;
-Got one of the listed errors
+Warnings:
+Warning	2	Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory")
 drop table t1;
 ERROR 42S02: Unknown table 't1'
diff --git a/mysql-test/r/myisam.result b/mysql-test/r/myisam.result
index 6c0826775ad..2530182ea67 100644
--- a/mysql-test/r/myisam.result
+++ b/mysql-test/r/myisam.result
@@ -618,7 +618,7 @@ t1	1	a	1	a	A	1000	NULL	NULL	YES	BTREE
 alter table t1 engine=heap;
 alter table t1 disable keys;
 Warnings:
-Note	1031	Table storage engine for 't1' doesn't have this option
+Note	1031	Storage engine MEMORY of the table `test`.`t1` doesn't have this option
 show keys from t1;
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
 t1	1	a	1	a	NULL	500	NULL	NULL	YES	HASH		
@@ -2291,19 +2291,19 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1 TRANSACTIONAL=1
 drop table t1;
 CREATE TABLE t1 (line LINESTRING NOT NULL) engine=myisam;
-INSERT INTO t1 VALUES (GeomFromText("POINT(0 0)"));
+INSERT INTO t1 VALUES (GeomFromText("LINESTRING(0 0)"));
 checksum table t1;
 Table	Checksum
-test.t1	326284887
+test.t1	310616673
 CREATE TABLE t2 (line LINESTRING NOT NULL) engine=myisam;
-INSERT INTO t2 VALUES (GeomFromText("POINT(0 0)"));
+INSERT INTO t2 VALUES (GeomFromText("LINESTRING(0 0)"));
 checksum table t2;
 Table	Checksum
-test.t2	326284887
+test.t2	310616673
 CREATE TABLE t3 select * from t1;
 checksum table t3;
 Table	Checksum
-test.t3	326284887
+test.t3	310616673
 drop table t1,t2,t3;
 create table t1 (a1 int,a2 int,a3 int,a4 int,a5 int,a6 int,a7 int,a8 int,a9 int,a10 int,a11 int,a12 int,a13 int,a14 int,a15 int,a16 int,a17 int,a18 int,a19 int,a20 int,a21 int,a22 int,a23 int,a24 int,a25 int,a26 int,a27 int,a28 int,a29 int,a30 int,a31 int,a32 int,
 key(a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,a15,a16,a17,a18,a19,a20,a21,a22,a23,a24,a25,a26,a27,a28,a29,a30,a31,a32)) engine=myisam;
@@ -2337,25 +2337,6 @@ h+0	d + 0	e	g + 0
 1	1	3	0
 1	1	4	0
 DROP TABLE t1;
-#
-# Test of BUG#35570 CHECKSUM TABLE unreliable if LINESTRING field
-# (same content / differen checksum)
-#
-CREATE TABLE t1 (line LINESTRING NOT NULL) engine=myisam;
-INSERT INTO t1 VALUES (GeomFromText("POINT(0 0)"));
-checksum table t1;
-Table	Checksum
-test.t1	326284887
-CREATE TABLE t2 (line LINESTRING NOT NULL) engine=myisam;
-INSERT INTO t2 VALUES (GeomFromText("POINT(0 0)"));
-checksum table t2;
-Table	Checksum
-test.t2	326284887
-CREATE TABLE t3 select * from t1;
-checksum table t3;
-Table	Checksum
-test.t3	326284887
-drop table t1,t2,t3;
 CREATE TABLE t1(a INT, b CHAR(10), KEY(a), KEY(b));
 INSERT INTO t1 VALUES(1,'0'),(2,'0'),(3,'0'),(4,'0'),(5,'0'),
 (6,'0'),(7,'0');
diff --git a/mysql-test/r/mysql.result b/mysql-test/r/mysql.result
index e0670f7d643..4d2ac25a0eb 100644
--- a/mysql-test/r/mysql.result
+++ b/mysql-test/r/mysql.result
@@ -513,5 +513,7 @@ create database `aa``bb````cc`;
 DATABASE()
 aa`bb``cc
 drop database `aa``bb````cc`;
+a
+>>\ndelimiter\n<<
 
 End of tests
diff --git a/mysql-test/r/mysql_client_test.result b/mysql-test/r/mysql_client_test.result
index 7875464ebe2..4ad07b20ab5 100644
--- a/mysql-test/r/mysql_client_test.result
+++ b/mysql-test/r/mysql_client_test.result
@@ -1,5 +1,6 @@
 SET @old_general_log= @@global.general_log;
 SET @old_slow_query_log= @@global.slow_query_log;
+call mtr.add_suppression(" Error reading file './client_test_db/test_frm_bug.frm'");
 ok
 
 # cat MYSQL_TMP_DIR/test_wl4435.out.log
diff --git a/mysql-test/r/mysql_client_test_nonblock.result b/mysql-test/r/mysql_client_test_nonblock.result
index edda7980e97..e37e2132b0c 100644
--- a/mysql-test/r/mysql_client_test_nonblock.result
+++ b/mysql-test/r/mysql_client_test_nonblock.result
@@ -1,5 +1,6 @@
 SET @old_general_log= @@global.general_log;
 SET @old_slow_query_log= @@global.slow_query_log;
+call mtr.add_suppression(" Error reading file './client_test_db/test_frm_bug.frm'");
 ok
 SET @@global.general_log= @old_general_log;
 SET @@global.slow_query_log= @old_slow_query_log;
diff --git a/mysql-test/r/mysqlbinlog-innodb.result b/mysql-test/r/mysqlbinlog-innodb.result
index 41d15bc32d3..a5865fe4fac 100644
--- a/mysql-test/r/mysqlbinlog-innodb.result
+++ b/mysql-test/r/mysqlbinlog-innodb.result
@@ -19,6 +19,7 @@ a
 1
 2
 FLUSH LOGS;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -50,6 +51,8 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -81,5 +84,6 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 DROP DATABASE test2;
 DROP TABLE t1;
diff --git a/mysql-test/r/mysqlbinlog.result b/mysql-test/r/mysqlbinlog.result
index 63b0ea2a71a..27693b62f51 100644
--- a/mysql-test/r/mysqlbinlog.result
+++ b/mysql-test/r/mysqlbinlog.result
@@ -14,6 +14,7 @@ insert into t1 values ("Alas");
 flush logs;
 
 --- Local --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -95,8 +96,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 
 --- Broken LOAD DATA --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -131,8 +134,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 
 --- --database --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -186,8 +191,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 
 --- --start-position --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -213,8 +220,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 
 --- Remote --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -296,8 +305,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 
 --- Broken LOAD DATA --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -332,8 +343,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 
 --- --database --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -387,8 +400,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 
 --- --start-position --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -414,8 +429,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 
 --- reading stdin --
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -435,6 +452,8 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -453,6 +472,7 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 drop table t1,t2;
 flush logs;
 flush logs;
@@ -495,6 +515,7 @@ call p1();
 drop procedure p1;
 call p1();
 ERROR 42000: PROCEDURE test.p1 does not exist
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -517,6 +538,7 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 call p1();
 1
 1
@@ -545,6 +567,7 @@ C3BF
 D0AA
 drop table t1;
 flush logs;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -634,6 +657,7 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 CREATE TABLE t1 (c1 CHAR(10));
 FLUSH LOGS;
 INSERT INTO t1 VALUES ('0123456789');
@@ -721,6 +745,7 @@ RESET MASTER;
 FLUSH LOGS;
 #
 # Test if the 'BEGIN', 'ROLLBACK' and 'COMMIT' are output if the database specified exists
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -772,8 +797,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 #
 # Test if the 'BEGIN', 'ROLLBACK' and 'COMMIT' are output if the database specified does not exist
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -806,8 +833,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 #
 # Test if the 'SAVEPOINT', 'ROLLBACK TO' are output if the database specified exists
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -846,8 +875,10 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 #
 # Test if the 'SAVEPOINT', 'ROLLBACK TO' are output if the database specified does not exist
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -873,6 +904,7 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 End of 5.0 tests
 End of 5.1 tests
 # Expect deprecation warning.
diff --git a/mysql-test/r/mysqlcheck.result b/mysql-test/r/mysqlcheck.result
index 10f1691e80a..b28cfd8ef20 100644
--- a/mysql-test/r/mysqlcheck.result
+++ b/mysql-test/r/mysqlcheck.result
@@ -188,6 +188,7 @@ Table	Op	Msg_type	Msg_text
 test.v1	check	status	OK
 information_schema.routines	check	note	The storage engine for the table doesn't support check
 drop view v1;
+call mtr.add_suppression("Error reading file './test/t1.frm'");
 CREATE TABLE t1(a INT) engine=myisam;
 CREATE TABLE t2(a INT) engine=myisam;
 test.t1
@@ -204,15 +205,15 @@ t1
 v1
 show tables;
 Tables_in_test
-t1
 #mysql50#v-1
+t1
 v1
 test.t1                                            OK
 show tables;
 Tables_in_test
 t1
-v1
 v-1
+v1
 drop view v1, `v-1`;
 drop table t1;
 SET NAMES utf8;
diff --git a/mysql-test/r/mysqld--help,win.rdiff b/mysql-test/r/mysqld--help,win.rdiff
index 0fa6e41391f..24719fce917 100644
--- a/mysql-test/r/mysqld--help,win.rdiff
+++ b/mysql-test/r/mysqld--help,win.rdiff
@@ -1,6 +1,6 @@
---- r/mysqld--help.result	2012-10-25 14:02:57.000000000 +0200
-+++ mysqld--help,win.result~	2012-10-30 11:37:08.000000000 +0100
-@@ -244,7 +244,6 @@
+--- mysql-test/r/mysqld--help.result	2012-09-08 22:22:06 +0000
++++ mysql-test/r/mysqld--help.result	2012-10-01 14:03:59 +0000
+@@ -248,7 +248,6 @@
   The number of segments in a key cache
   -L, --language=name Client error messages in given language. May be given as
   a full path. Deprecated. Use --lc-messages-dir instead.
@@ -8,7 +8,7 @@
   --lc-messages=name  Set the language used for the error messages.
   -L, --lc-messages-dir=name 
   Directory where error messages are
-@@ -437,6 +436,7 @@
+@@ -443,6 +442,7 @@
   NULLS_UNEQUAL (default behavior for 4.1 and later),
   NULLS_EQUAL (emulate 4.0 behavior), and NULLS_IGNORED
   --myisam-use-mmap   Use memory mapping for reading and writing MyISAM tables
@@ -16,7 +16,7 @@
   --net-buffer-length=# 
   Buffer length for TCP/IP and socket communication
   --net-read-timeout=# 
-@@ -774,6 +774,9 @@
+@@ -710,6 +710,9 @@
   files within specified directory
   --server-id=#       Uniquely identifies the server instance in the community
   of replication partners
@@ -26,7 +26,7 @@
   --show-slave-auth-info 
   Show user and password in SHOW SLAVE HOSTS on this
   master.
-@@ -841,6 +844,10 @@
+@@ -777,6 +780,10 @@
   Log slow queries to given log file. Defaults logging to
   'hostname'-slow.log. Must be enabled to activate other
   slow log options
@@ -37,7 +37,7 @@
   --socket=name       Socket file to use for connection
   --sort-buffer-size=# 
   Each thread that needs to do a sort allocates a buffer of
-@@ -849,6 +856,7 @@
+@@ -785,6 +792,7 @@
   for the complete list of valid sql modes
   --stack-trace       Print a symbolic stack trace on failure
   (Defaults to on; use --skip-stack-trace to disable.)
@@ -45,7 +45,35 @@
   --stored-program-cache=# 
   The soft upper limit for number of cached stored routines
   for one connection.
-@@ -889,8 +897,8 @@
+@@ -817,25 +825,11 @@
+  values are COMMIT or ROLLBACK.
+  --thread-cache-size=# 
+  How many threads we should keep in a cache for reuse
+- --thread-pool-idle-timeout=# 
+- Timeout in seconds for an idle thread in the thread
+- pool.Worker thread will be shut down after timeout
+  --thread-pool-max-threads=# 
+  Maximum allowed number of worker threads in the thread
+  pool
+- --thread-pool-oversubscribe=# 
+- How many additional active worker threads in a group are
+- allowed.
+- --thread-pool-size=# 
+- Number of thread groups in the pool. This parameter is
+- roughly equivalent to maximum number of concurrently
+- executing threads (threads in a waiting state do not
+- count as executing).
+- --thread-pool-stall-limit=# 
+- Maximum query execution time in milliseconds,before an
+- executing non-yielding thread is considered stalled.If a
+- worker thread is stalled, additional worker thread may be
+- created to handle remaining clients.
++ --thread-pool-min-threads=# 
++ Minimum number of threads in the thread pool.
+  --thread-stack=#    The stack size for each thread
+  --time-format=name  The TIME format (ignored)
+  --timed-mutexes     Specify whether to time mutexes (only InnoDB mutexes are
+@@ -844,8 +838,8 @@
   size, MySQL will automatically convert it to an on-disk
   MyISAM or Aria table
   -t, --tmpdir=name   Path for temporary files. Several paths may be specified,
@@ -56,7 +84,7 @@
   --transaction-alloc-block-size=# 
   Allocation block size for transactions to be stored in
   binary log
-@@ -993,7 +1001,6 @@
+@@ -949,7 +943,6 @@
  key-cache-block-size 1024
  key-cache-division-limit 100
  key-cache-segments 0
@@ -64,7 +92,7 @@
  lc-messages en_US
  lc-messages-dir MYSQL_SHAREDIR/
  lc-time-names en_US
-@@ -1056,6 +1063,7 @@
+@@ -1012,6 +1005,7 @@
  myisam-sort-buffer-size 8388608
  myisam-stats-method nulls_unequal
  myisam-use-mmap FALSE
@@ -72,7 +100,7 @@
  net-buffer-length 16384
  net-read-timeout 30
  net-retry-count 10
-@@ -1148,6 +1156,8 @@
+@@ -1077,6 +1071,8 @@
  secure-auth FALSE
  secure-file-priv (No default value)
  server-id 0
@@ -81,7 +109,7 @@
  show-slave-auth-info FALSE
  skip-grant-tables TRUE
  skip-name-resolve FALSE
-@@ -1164,6 +1174,7 @@
+@@ -1093,6 +1089,7 @@
  slave-type-conversions 
  slow-launch-time 2
  slow-query-log FALSE
@@ -89,3 +117,15 @@
  sort-buffer-size 2097152
  sql-mode 
  stack-trace TRUE
+@@ -1109,10 +1106,8 @@
+ table-open-cache 400
+ tc-heuristic-recover COMMIT
+ thread-cache-size 0
+-thread-pool-idle-timeout 60
+ thread-pool-max-threads 500
+-thread-pool-oversubscribe 3
+-thread-pool-stall-limit 500
++thread-pool-min-threads 1
+ thread-stack 294912
+ time-format %H:%i:%s
+ timed-mutexes FALSE
diff --git a/mysql-test/r/mysqld--help.result b/mysql-test/r/mysqld--help.result
index 197743d6c6f..699e6764fa9 100644
--- a/mysql-test/r/mysqld--help.result
+++ b/mysql-test/r/mysqld--help.result
@@ -496,8 +496,8 @@ The following options may be given as the first argument:
  mrr_cost_based, mrr_sort_keys, optimize_join_buffer_size,
  outer_join_with_cache, partial_match_rowid_merge,
  partial_match_table_scan, semijoin, semijoin_with_cache,
- subquery_cache, table_elimination, extended_keys } and
- val is one of {on, off, default}
+ subquery_cache, table_elimination, extended_keys,
+ exists_to_in } and val is one of {on, off, default}
  --performance-schema 
  Enable the performance schema.
  --performance-schema-accounts-size=# 
@@ -890,6 +890,25 @@ The following options may be given as the first argument:
  values are COMMIT or ROLLBACK.
  --thread-cache-size=# 
  How many threads we should keep in a cache for reuse
+ --thread-pool-idle-timeout=# 
+ Timeout in seconds for an idle thread in the thread
+ pool.Worker thread will be shut down after timeout
+ --thread-pool-max-threads=# 
+ Maximum allowed number of worker threads in the thread
+ pool
+ --thread-pool-oversubscribe=# 
+ How many additional active worker threads in a group are
+ allowed.
+ --thread-pool-size=# 
+ Number of thread groups in the pool. This parameter is
+ roughly equivalent to maximum number of concurrently
+ executing threads (threads in a waiting state do not
+ count as executing).
+ --thread-pool-stall-limit=# 
+ Maximum query execution time in milliseconds,before an
+ executing non-yielding thread is considered stalled.If a
+ worker thread is stalled, additional worker thread may be
+ created to handle remaining clients.
  --thread-stack=#    The stack size for each thread
  --time-format=name  The TIME format (ignored)
  --timed-mutexes     Specify whether to time mutexes (only InnoDB mutexes are
@@ -1192,6 +1211,10 @@ table-definition-cache 400
 table-open-cache 400
 tc-heuristic-recover COMMIT
 thread-cache-size 0
+thread-pool-idle-timeout 60
+thread-pool-max-threads 500
+thread-pool-oversubscribe 3
+thread-pool-stall-limit 500
 thread-stack 294912
 time-format %H:%i:%s
 timed-mutexes FALSE
diff --git a/mysql-test/r/mysqldump.result b/mysql-test/r/mysqldump.result
index 6b0e044a491..33e10f29201 100644
--- a/mysql-test/r/mysqldump.result
+++ b/mysql-test/r/mysqldump.result
@@ -2791,8 +2791,8 @@ UNLOCK TABLES;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 FUNCTION `bug9056_func1`(a INT, b INT) RETURNS int(11)
-RETURN a+b */;;
+CREATE DEFINER=`root`@`localhost` FUNCTION `bug9056_func1`(a INT, b INT) RETURNS int(11)
+RETURN a+b ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -2808,11 +2808,11 @@ DELIMITER ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 FUNCTION `bug9056_func2`(f1 char binary) RETURNS char(1) CHARSET latin1
+CREATE DEFINER=`root`@`localhost` FUNCTION `bug9056_func2`(f1 char binary) RETURNS char(1) CHARSET latin1
 begin
 set f1= concat( 'hello', f1 );
 return f1;
-end */;;
+end ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -2828,8 +2828,8 @@ DELIMITER ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = 'REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ANSI' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER="root"@"localhost"*/ /*!50003 PROCEDURE "a'b"()
-select 1 */;;
+CREATE DEFINER="root"@"localhost" PROCEDURE "a'b"()
+select 1 ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -2845,8 +2845,8 @@ DELIMITER ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `bug9056_proc1`(IN a INT, IN b INT, OUT c INT)
-BEGIN SELECT a+b INTO c; end */;;
+CREATE DEFINER=`root`@`localhost` PROCEDURE `bug9056_proc1`(IN a INT, IN b INT, OUT c INT)
+BEGIN SELECT a+b INTO c; end ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -2862,10 +2862,10 @@ DELIMITER ;
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `bug9056_proc2`(OUT a INT)
+CREATE DEFINER=`root`@`localhost` PROCEDURE `bug9056_proc2`(OUT a INT)
 BEGIN
 select sum(id) from t1 into a;
-END */;;
+END ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
@@ -3851,8 +3851,8 @@ create procedure mysqldump_test_db.sp1() select 'hello';
 /*!50003 SET @saved_sql_mode       = @@sql_mode */ ;
 /*!50003 SET sql_mode              = '' */ ;
 DELIMITER ;;
-/*!50003 CREATE*/ /*!50020 DEFINER=`user1`@`%`*/ /*!50003 PROCEDURE `sp1`()
-select 'hello' */;;
+CREATE DEFINER=`user1`@`%` PROCEDURE `sp1`()
+select 'hello' ;;
 DELIMITER ;
 /*!50003 SET sql_mode              = @saved_sql_mode */ ;
 /*!50003 SET character_set_client  = @saved_cs_client */ ;
diff --git a/mysql-test/r/mysqlslap.result b/mysql-test/r/mysqlslap.result
index 069c9182de2..38a7b0a694e 100644
--- a/mysql-test/r/mysqlslap.result
+++ b/mysql-test/r/mysqlslap.result
@@ -234,8 +234,8 @@ test
 # 'bug58090' database should be present.
 SHOW DATABASES;
 Database
-information_schema
 bug58090
+information_schema
 mtr
 mysql
 performance_schema
diff --git a/mysql-test/r/partition.result b/mysql-test/r/partition.result
index 86425825601..c6a806bec80 100644
--- a/mysql-test/r/partition.result
+++ b/mysql-test/r/partition.result
@@ -2493,3 +2493,25 @@ i
 3
 4
 DROP TABLE t1;
+CREATE TABLE t1 ( d DATE NOT NULL)
+PARTITION BY RANGE( YEAR(d) ) (
+PARTITION p0 VALUES LESS THAN (1960),
+PARTITION p1 VALUES LESS THAN (1970),
+PARTITION p2 VALUES LESS THAN (1980),
+PARTITION p3 VALUES LESS THAN (1990)
+);
+ALTER TABLE t1 ADD PARTITION IF NOT EXISTS(
+PARTITION `p5` VALUES LESS THAN (2010)
+COMMENT 'APSTART \' APEND'
+);
+ALTER TABLE t1 ADD PARTITION IF NOT EXISTS(
+PARTITION `p5` VALUES LESS THAN (2010)
+COMMENT 'APSTART \' APEND'
+);
+Warnings:
+Note	1517	Duplicate partition name p5
+alter table t1 drop partition if exists p5;
+alter table t1 drop partition if exists p5;
+Warnings:
+Note	1507	Error in list of partitions to DROP
+DROP TABLE t1;
diff --git a/mysql-test/r/partition_debug_sync.result b/mysql-test/r/partition_debug_sync.result
index ad0f6df5ff2..826bca019d5 100644
--- a/mysql-test/r/partition_debug_sync.result
+++ b/mysql-test/r/partition_debug_sync.result
@@ -42,21 +42,18 @@ CREATE TABLE t2
 b INTEGER NOT NULL,
 KEY (b))
 ENGINE = MYISAM
-/*!50100  PARTITION BY RANGE (a)
-(PARTITION p0 VALUES LESS THAN (2),
+PARTITION BY RANGE (a) (PARTITION p0 VALUES LESS THAN (2),
 PARTITION p1 VALUES LESS THAN (20),
 PARTITION p2 VALUES LESS THAN (100),
-PARTITION p3 VALUES LESS THAN MAXVALUE ) */;
+PARTITION p3 VALUES LESS THAN MAXVALUE);
 SET DEBUG_SYNC= 'alter_table_before_open_tables SIGNAL removing_partitions WAIT_FOR waiting_for_alter';
 SET DEBUG_SYNC= 'alter_table_before_rename_result_table WAIT_FOR delete_done';
 ALTER TABLE t2 REMOVE PARTITIONING;
 # Con default
-SET SESSION debug_dbug= "+d,sleep_before_no_locks_delete_table";
 SET DEBUG_SYNC= 'now WAIT_FOR removing_partitions';
 SET DEBUG_SYNC= 'rm_table_no_locks_before_delete_table SIGNAL waiting_for_alter';
 SET DEBUG_SYNC= 'rm_table_no_locks_before_binlog SIGNAL delete_done';
 DROP TABLE IF EXISTS t2;
-SET SESSION debug_dbug= "-d,sleep_before_no_locks_delete_table";
 # Con 1
 ERROR 42S02: Table 'test.t2' doesn't exist
 SET DEBUG_SYNC= 'RESET';
diff --git a/mysql-test/r/partition_disabled.result b/mysql-test/r/partition_disabled.result
index 2978a3b6d2e..505bec79610 100644
--- a/mysql-test/r/partition_disabled.result
+++ b/mysql-test/r/partition_disabled.result
@@ -3,7 +3,7 @@ FLUSH TABLES;
 SELECT * FROM t1;
 ERROR HY000: The MariaDB server is running with the --skip-partition option so it cannot execute this statement
 TRUNCATE TABLE t1;
-ERROR 42S02: Table 'test.t1' doesn't exist
+ERROR HY000: The MariaDB server is running with the --skip-partition option so it cannot execute this statement
 ANALYZE TABLE t1;
 Table	Op	Msg_type	Msg_text
 test.t1	analyze	Error	The MariaDB server is running with the --skip-partition option so it cannot execute this statement
diff --git a/mysql-test/r/partition_example.result b/mysql-test/r/partition_example.result
index 2129eea0818..7b6e9aa5213 100644
--- a/mysql-test/r/partition_example.result
+++ b/mysql-test/r/partition_example.result
@@ -7,7 +7,7 @@ show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) NOT NULL
-) ENGINE=EXAMPLE DEFAULT CHARSET=latin1
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `VAROPT`='5'
 /*!50100 PARTITION BY LIST (a)
 (PARTITION p0 VALUES IN (1) ENGINE = EXAMPLE,
  PARTITION p1 VALUES IN (2) ENGINE = EXAMPLE) */
@@ -20,7 +20,7 @@ show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) NOT NULL
-) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `ull`=12340
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `ull`=12340 `VAROPT`='5'
 /*!50100 PARTITION BY LIST (a)
 (PARTITION p0 VALUES IN (1) ENGINE = EXAMPLE,
  PARTITION p1 VALUES IN (2) ENGINE = EXAMPLE) */
diff --git a/mysql-test/r/partition_innodb_plugin.result b/mysql-test/r/partition_innodb_plugin.result
index fa2ef5c6c18..ceade2a793c 100644
--- a/mysql-test/r/partition_innodb_plugin.result
+++ b/mysql-test/r/partition_innodb_plugin.result
@@ -67,7 +67,7 @@ LOCK TABLE t1 WRITE;
 # ALTER fails because COMPRESSED/KEY_BLOCK_SIZE
 # are incompatible with innodb_file_per_table = OFF;
 ALTER TABLE t1 ADD PARTITION PARTITIONS 1;
-ERROR HY000: Got error 140 "Wrong create options" from storage engine
+ERROR HY000: Got error 140 "Wrong create options" from storage engine InnoDB
 t1#P#p0.ibd
 t1.frm
 t1.par
diff --git a/mysql-test/r/partition_myisam.result b/mysql-test/r/partition_myisam.result
index f0844c0b407..10586ddc548 100644
--- a/mysql-test/r/partition_myisam.result
+++ b/mysql-test/r/partition_myisam.result
@@ -102,7 +102,6 @@ FLUSH TABLES;
 CHECK TABLE t1;
 Table	Op	Msg_type	Msg_text
 test.t1	check	Error	Failed to read from the .par file
-test.t1	check	Error	Incorrect information in file: './test/t1.frm'
 test.t1	check	error	Corrupt
 SELECT * FROM t1;
 ERROR HY000: Failed to read from the .par file
diff --git a/mysql-test/r/partition_not_windows.result b/mysql-test/r/partition_not_windows.result
index 42dca557b3e..a1da9af675b 100644
--- a/mysql-test/r/partition_not_windows.result
+++ b/mysql-test/r/partition_not_windows.result
@@ -94,4 +94,4 @@ PARTITION p1 DATA DIRECTORY = '/not/existent/p1Data',
 PARTITION p2 DATA DIRECTORY = '/not/existent/p2Data',
 PARTITION p3 DATA DIRECTORY = '/not/existent/p3Data'
 );
-Got one of the listed errors
+ERROR HY000: Can't create/write to file '/not/existent/p0Data/example#P#p0.MYD' (Errcode: 2 "No such file or directory")
diff --git a/mysql-test/r/partition_pruning.result b/mysql-test/r/partition_pruning.result
index ec7fd798d4c..f4d473c00d5 100644
--- a/mysql-test/r/partition_pruning.result
+++ b/mysql-test/r/partition_pruning.result
@@ -2235,9 +2235,10 @@ INSERT INTO t1 VALUES (1, '2009-01-01'), (2, NULL);
 # test with an invalid date, which lead to item->null_value is set.
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE b < CAST('2009-04-99' AS DATETIME);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+1	SIMPLE	t1	p20090401	ALL	NULL	NULL	NULL	NULL	2	Using where
 Warnings:
 Warning	1292	Incorrect datetime value: '2009-04-99'
+Warning	1292	Incorrect datetime value: '2009-04-99'
 DROP TABLE t1;
 CREATE TABLE t1
 (a INT NOT NULL AUTO_INCREMENT,
diff --git a/mysql-test/r/plugin.result b/mysql-test/r/plugin.result
index 62864d0f16d..0eb49584c4a 100644
--- a/mysql-test/r/plugin.result
+++ b/mysql-test/r/plugin.result
@@ -35,18 +35,21 @@ PLUGIN_LICENSE	GPL
 LOAD_OPTION	ON
 PLUGIN_MATURITY	Experimental
 PLUGIN_AUTH_VERSION	3.14.15.926
-CREATE TABLE t1(a int) ENGINE=EXAMPLE;
+CREATE TABLE t1 (a int) ENGINE=EXAMPLE;
+CREATE TABLE t2 (a int) ENGINE=EXAMPLE;
+FLUSH TABLES;
 SELECT * FROM t1;
 a
 set global example_ulong_var=500;
 set global example_enum_var= e1;
 show status like 'example%';
 Variable_name	Value
-example_func_example	enum_var is 0, ulong_var is 500, really
+Example_func_example	enum_var is 0, ulong_var is 500, really
 show variables like 'example%';
 Variable_name	Value
 example_enum_var	e1
 example_ulong_var	500
+example_varopt_default	5
 UNINSTALL SONAME 'ha_example';
 Warnings:
 Warning	1620	Plugin is busy and will be uninstalled on shutdown
@@ -65,6 +68,10 @@ LOAD_OPTION	ON
 PLUGIN_MATURITY	Experimental
 PLUGIN_AUTH_VERSION	0.1
 DROP TABLE t1;
+select * from information_schema.plugins where plugin_library like 'ha_example%';
+SELECT * FROM t2;
+ERROR 42000: Unknown storage engine 'EXAMPLE'
+DROP TABLE t2;
 UNINSTALL PLUGIN EXAMPLE;
 ERROR 42000: PLUGIN EXAMPLE does not exist
 UNINSTALL PLUGIN non_exist;
@@ -113,7 +120,7 @@ show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) DEFAULT NULL `complex`='c,f,f,f'
-) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `ULL`=10000 `STR`='dskj' `one_or_two`='one' `YESNO`=0
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `ULL`=10000 `STR`='dskj' `one_or_two`='one' `YESNO`=0 `VAROPT`='5'
 drop table t1;
 SET @OLD_SQL_MODE=@@SQL_MODE;
 SET SQL_MODE='IGNORE_BAD_TABLE_OPTIONS';
@@ -127,20 +134,20 @@ show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) DEFAULT NULL
-) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `ULL`=10000000000000000000 `one_or_two`='ttt' `YESNO`=SSS
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `ULL`=10000000000000000000 `one_or_two`='ttt' `YESNO`=SSS `VAROPT`='5'
 #alter table
 alter table t1 ULL=10000000;
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) DEFAULT NULL
-) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `one_or_two`='ttt' `YESNO`=SSS `ULL`=10000000
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `one_or_two`='ttt' `YESNO`=SSS `VAROPT`='5' `ULL`=10000000
 alter table t1 change a a int complex='c,c,c';
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) DEFAULT NULL `complex`='c,c,c'
-) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `one_or_two`='ttt' `YESNO`=SSS `ULL`=10000000
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `one_or_two`='ttt' `YESNO`=SSS `VAROPT`='5' `ULL`=10000000
 drop table t1;
 #illegal value error
 SET SQL_MODE='';
@@ -155,17 +162,38 @@ SHOW CREATE TABLE t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) DEFAULT NULL
-) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `ULL`=4660
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `ULL`=4660 `VAROPT`='5'
+SET example_varopt_default=33;
 select create_options from information_schema.tables where table_schema='test' and table_name='t1';
 create_options
-`ULL`=4660
+`ULL`=4660 `VAROPT`='5'
 ALTER TABLE t1 ULL=DEFAULT;
 SHOW CREATE TABLE t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) DEFAULT NULL
-) ENGINE=EXAMPLE DEFAULT CHARSET=latin1
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `VAROPT`='5'
 DROP TABLE t1;
+create table t1 (a int) engine=example;
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `VAROPT`='33'
+drop table t1;
+create table t1 (a int) engine=example varopt=15;
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `varopt`=15
+alter table t1 varopt=default;
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL
+) ENGINE=EXAMPLE DEFAULT CHARSET=latin1 `VAROPT`='33'
+drop table t1;
 SET @@SQL_MODE=@OLD_SQL_MODE;
 select 1;
 1
diff --git a/mysql-test/r/plugin_auth.result b/mysql-test/r/plugin_auth.result
index f8ebf65c0c5..356ac76962a 100644
--- a/mysql-test/r/plugin_auth.result
+++ b/mysql-test/r/plugin_auth.result
@@ -224,7 +224,7 @@ NULL
 # in connection plug_con
 SELECT @@LOCAL.external_user;
 @@LOCAL.external_user
-'plug'@'%'
+plug_dest
 # in connection default
 ## cleanup
 DROP USER plug;
diff --git a/mysql-test/r/plugin_auth_qa_2.result b/mysql-test/r/plugin_auth_qa_2.result
index f300ea332cb..aa3a59b4f25 100644
--- a/mysql-test/r/plugin_auth_qa_2.result
+++ b/mysql-test/r/plugin_auth_qa_2.result
@@ -44,7 +44,7 @@ SELECT @@external_user;
 NULL
 exec MYSQL -h localhost -P MASTER_MYPORT -u qa_test_2_user --password=qa_test_2_dest test_user_db -e "SELECT current_user(),user(),@@local.proxy_user,@@local.external_user;" 2>&1
 current_user()	user()	@@local.proxy_user	@@local.external_user
-authenticated_as@%	user_name@localhost	'qa_test_2_user'@'%'	'qa_test_2_user'@'%'
+authenticated_as@%	user_name@localhost	'qa_test_2_user'@'%'	externaluser
 SELECT user,plugin,authentication_string FROM mysql.user WHERE user != 'root';
 user	plugin	authentication_string
 authenticated_as		
@@ -60,7 +60,7 @@ GRANT ALL PRIVILEGES ON test_user_db.* TO qa_test_3_dest identified by 'dest_pas
 GRANT PROXY ON qa_test_3_dest TO qa_test_3_user;
 exec MYSQL -h localhost -P MASTER_MYPORT -u qa_test_3_user --password=qa_test_3_dest test_user_db -e "SELECT current_user(),user(),@@local.proxy_user,@@local.external_user;" 2>&1
 current_user()	user()	@@local.proxy_user	@@local.external_user
-qa_test_3_dest@%	qa_test_3_user@localhost	'qa_test_3_user'@'%'	'qa_test_3_user'@'%'
+qa_test_3_dest@%	qa_test_3_user@localhost	'qa_test_3_user'@'%'	qa_test_3_dest
 DROP USER qa_test_3_user;
 DROP USER qa_test_3_dest;
 === Assign too low values for *length, which should have no effect ====
@@ -70,7 +70,7 @@ GRANT ALL PRIVILEGES ON test_user_db.* TO qa_test_4_dest identified by 'dest_pas
 GRANT PROXY ON qa_test_4_dest TO qa_test_4_user;
 exec MYSQL -h localhost -P MASTER_MYPORT -u qa_test_4_user --password=qa_test_4_dest test_user_db -e "SELECT current_user(),user(),@@local.proxy_user,@@local.external_user;" 2>&1
 current_user()	user()	@@local.proxy_user	@@local.external_user
-qa_test_4_dest@%	qa_test_4_user@localhost	'qa_test_4_user'@'%'	'qa_test_4_user'@'%'
+qa_test_4_dest@%	qa_test_4_user@localhost	'qa_test_4_user'@'%'	qa_test_4_dest
 DROP USER qa_test_4_user;
 DROP USER qa_test_4_dest;
 === Assign empty string especially to authenticated_as (in plugin) ====
diff --git a/mysql-test/r/plugin_auth_qa_3.result b/mysql-test/r/plugin_auth_qa_3.result
index 656975aca30..dd4fb76ff8d 100644
--- a/mysql-test/r/plugin_auth_qa_3.result
+++ b/mysql-test/r/plugin_auth_qa_3.result
@@ -4,7 +4,7 @@ GRANT ALL PRIVILEGES ON test_user_db.* TO qa_test_11_dest identified by 'dest_pa
 GRANT PROXY ON qa_test_11_dest TO qa_test_11_user;
 exec MYSQL --default_auth=qa_auth_client -h localhost -P MASTER_MYPORT -u qa_test_11_user --password=qa_test_11_dest test_user_db -e "SELECT current_user(),user(),@@local.proxy_user,@@local.external_user;" 2>&1
 current_user()	user()	@@local.proxy_user	@@local.external_user
-qa_test_11_dest@%	qa_test_11_user@localhost	'qa_test_11_user'@'%'	'qa_test_11_user'@'%'
+qa_test_11_dest@%	qa_test_11_user@localhost	'qa_test_11_user'@'%'	NULL
 exec MYSQL --default_auth=qa_auth_client -h localhost -P MASTER_MYPORT -u qa_test_2_user --password=qa_test_11_dest test_user_db -e "SELECT current_user(),user(),@@local.proxy_user,@@local.external_user;" 2>&1
 ERROR 1045 (28000): Access denied for user 'qa_test_2_user'@'localhost' (using password: NO)
 DROP USER qa_test_11_user, qa_test_11_dest;
diff --git a/mysql-test/r/ps_11bugs.result b/mysql-test/r/ps_11bugs.result
index 56894302505..3bc7039583b 100644
--- a/mysql-test/r/ps_11bugs.result
+++ b/mysql-test/r/ps_11bugs.result
@@ -120,7 +120,7 @@ create table t1 (a int primary key);
 insert into t1 values (1);
 explain select * from t1 where 3 in (select (1+1) union select 1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
diff --git a/mysql-test/r/ps_1general.result b/mysql-test/r/ps_1general.result
index 3ca0cf8554f..0a8aea94e8a 100644
--- a/mysql-test/r/ps_1general.result
+++ b/mysql-test/r/ps_1general.result
@@ -533,7 +533,7 @@ drop table t2;
 prepare stmt1 from ' rename table t5 to t6, t7 to t8 ' ;
 create table t5 (a int) ;
 execute stmt1 ;
-ERROR HY000: Can't find file: './test/t7' (errno: 2 "No such file or directory")
+ERROR 42S02: Table 'test.t7' doesn't exist
 create table t7 (a int) ;
 execute stmt1 ;
 execute stmt1 ;
diff --git a/mysql-test/r/quick_select_4161.result b/mysql-test/r/quick_select_4161.result
new file mode 100644
index 00000000000..862be6055ce
--- /dev/null
+++ b/mysql-test/r/quick_select_4161.result
@@ -0,0 +1,31 @@
+CREATE TABLE t1 (
+event_date date DEFAULT '0000-00-00' NOT NULL,
+type int(11) DEFAULT '0' NOT NULL,
+event_id int(11) DEFAULT '0' NOT NULL,
+PRIMARY KEY (event_date,type,event_id)
+);
+INSERT INTO t1 VALUES ('1999-07-10',100100,24), ('1999-07-11',100100,25),
+('1999-07-13',100600,0), ('1999-07-13',100600,4), ('1999-07-13',100600,26),
+('1999-07-14',100600,10), ('1999-07-15',100600,16), ('1999-07-15',100800,45),
+('1999-07-15',101000,47), ('1999-07-16',100800,46), ('1999-07-20',100600,5),
+('1999-07-20',100600,27), ('1999-07-21',100600,11), ('1999-07-22',100600,17),
+('1999-07-23',100100,39), ('1999-07-24',100100,39), ('1999-07-24',100500,40),
+('1999-07-25',100100,39), ('1999-07-27',100600,1), ('1999-07-27',100600,6),
+('1999-07-27',100600,28), ('1999-07-28',100600,12), ('1999-07-29',100500,41),
+('1999-07-29',100600,18), ('1999-07-30',100500,41), ('1999-07-31',100500,41),
+('1999-08-01',100700,34), ('1999-08-03',100600,7), ('1999-08-03',100600,29),
+('1999-08-04',100600,13), ('1999-08-05',100500,42), ('1999-08-05',100600,19),
+('1999-08-06',100500,42), ('1999-08-07',100500,42), ('1999-08-08',100500,42),
+('1999-08-10',100600,2), ('1999-08-10',100600,9), ('1999-08-10',100600,30),
+('1999-08-11',100600,14), ('1999-08-12',100600,20), ('1999-08-17',100500,8),
+('1999-08-17',100600,31), ('1999-08-18',100600,15), ('1999-08-19',100600,22),
+('1999-08-24',100600,3), ('1999-08-24',100600,32), ('1999-08-27',100500,43),
+('1999-08-31',100600,33), ('1999-09-17',100100,37), ('1999-09-18',100100,37),
+('1999-09-19',100100,37), ('2000-12-18',100700,38);
+set debug_sync='inside_make_join_statistics signal killme wait_for done';
+select event_date,type,event_id from t1 WHERE event_date >= "1999-07-01" AND event_date < "1999-07-15" AND (type=100600 OR type=100100) ORDER BY event_date;
+set debug_sync='now wait_for killme';
+kill %connection%;
+set debug_sync='now signal done';
+Got one of the listed errors
+drop table t1;
diff --git a/mysql-test/r/rename.result b/mysql-test/r/rename.result
index edf05d0c5d3..7433ab8a0c9 100644
--- a/mysql-test/r/rename.result
+++ b/mysql-test/r/rename.result
@@ -14,20 +14,20 @@ select * from t1;
 1	table 1
 1	table 1
 rename table t1 to t2;
-Got one of the listed errors
+ERROR 42S01: Table 't2' already exists
 rename table t1 to t1;
-Got one of the listed errors
+ERROR 42S01: Table 't1' already exists
 rename table t3 to t4, t2 to t3, t1 to t2, t4 to t2;
-Got one of the listed errors
+ERROR 42S01: Table 't2' already exists
 show tables like "t_";
 Tables_in_test (t_)
 t1
 t2
 t3
 rename table t3 to t1, t2 to t3, t1 to t2, t4 to t1;
-Got one of the listed errors
+ERROR 42S01: Table 't1' already exists
 rename table t3 to t4, t5 to t3, t1 to t2, t4 to t1;
-Got one of the listed errors
+ERROR 42S02: Table 'test.t5' doesn't exist
 select * from t1;
 1	table 1
 1	table 1
diff --git a/mysql-test/r/row.result b/mysql-test/r/row.result
index 80934a4e01f..f94c958a1be 100644
--- a/mysql-test/r/row.result
+++ b/mysql-test/r/row.result
@@ -405,7 +405,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	index	PRIMARY	PRIMARY	8	NULL	6	100.00	Using index
 1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	12	test.t1.a,const,const	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`c` = 1) and (`test`.`t2`.`b` = 2) and (`test`.`t2`.`a` = `test`.`t1`.`a`))
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t2`.`b` = 2) and (`test`.`t2`.`c` = 1))
 SELECT * FROM t1,t2 WHERE (t2.a,(t2.b,t2.c))=(t1.a,(2,1));
 a	b	a	b	c
 1	1	1	2	1
@@ -415,7 +415,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	index	PRIMARY	PRIMARY	8	NULL	6	100.00	Using index
 1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	12	test.t1.a,const,const	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`c` = 1) and (`test`.`t2`.`b` = 2) and (`test`.`t2`.`a` = `test`.`t1`.`a`))
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t2`.`b` = 2) and (`test`.`t2`.`c` = 1))
 SELECT * FROM t1,t2 WHERE t2.a=t1.a AND (t2.b,t2.c)=(2,1);
 a	b	a	b	c
 1	1	1	2	1
diff --git a/mysql-test/r/schema.result b/mysql-test/r/schema.result
index 809d652053e..bb6dbd65f84 100644
--- a/mysql-test/r/schema.result
+++ b/mysql-test/r/schema.result
@@ -5,8 +5,8 @@ Database	Create Database
 foo	CREATE DATABASE `foo` /*!40100 DEFAULT CHARACTER SET latin1 */
 show schemas;
 Database
-information_schema
 foo
+information_schema
 mtr
 mysql
 performance_schema
diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result
index 378b20829f3..3d16d37c5f1 100644
--- a/mysql-test/r/select.result
+++ b/mysql-test/r/select.result
@@ -5302,4 +5302,24 @@ INSERT INTO t2 VALUES (3),(4);
 SELECT * FROM t1, t2 WHERE a=3 AND a=b;
 a	b
 drop table t1,t2;
+#
+# Bug mdev-4250: wrong transformation of WHERE condition with OR
+#
+CREATE TABLE t1 (pk int PRIMARY KEY, a int);
+INSERT INTO t1 VALUES (3,0), (2,0), (4,1), (5,0), (1,0);
+SELECT * FROM t1 WHERE (1=2 OR t1.pk=2) AND t1.a <> 0;
+pk	a
+EXPLAIN EXTENDED 
+SELECT * FROM t1 WHERE (1=2 OR t1.pk=2) AND t1.a <> 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select 2 AS `pk`,0 AS `a` from `test`.`t1` where ((0 <> 0))
+DROP TABLE t1;
+SELECT * FROM mysql.time_zone 
+WHERE ( NOT (Use_leap_seconds <= Use_leap_seconds AND Time_zone_id != 1) 
+AND Time_zone_id = Time_zone_id 
+OR Time_zone_id <> Time_zone_id ) 
+AND Use_leap_seconds <> 'N';
+Time_zone_id	Use_leap_seconds
 End of 5.3 tests
diff --git a/mysql-test/r/select_jcl6.result b/mysql-test/r/select_jcl6.result
index b5c6f89b87b..467f940c85d 100644
--- a/mysql-test/r/select_jcl6.result
+++ b/mysql-test/r/select_jcl6.result
@@ -5313,6 +5313,26 @@ INSERT INTO t2 VALUES (3),(4);
 SELECT * FROM t1, t2 WHERE a=3 AND a=b;
 a	b
 drop table t1,t2;
+#
+# Bug mdev-4250: wrong transformation of WHERE condition with OR
+#
+CREATE TABLE t1 (pk int PRIMARY KEY, a int);
+INSERT INTO t1 VALUES (3,0), (2,0), (4,1), (5,0), (1,0);
+SELECT * FROM t1 WHERE (1=2 OR t1.pk=2) AND t1.a <> 0;
+pk	a
+EXPLAIN EXTENDED 
+SELECT * FROM t1 WHERE (1=2 OR t1.pk=2) AND t1.a <> 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select 2 AS `pk`,0 AS `a` from `test`.`t1` where ((0 <> 0))
+DROP TABLE t1;
+SELECT * FROM mysql.time_zone 
+WHERE ( NOT (Use_leap_seconds <= Use_leap_seconds AND Time_zone_id != 1) 
+AND Time_zone_id = Time_zone_id 
+OR Time_zone_id <> Time_zone_id ) 
+AND Use_leap_seconds <> 'N';
+Time_zone_id	Use_leap_seconds
 End of 5.3 tests
 set join_cache_level=default;
 show variables like 'join_cache_level';
diff --git a/mysql-test/r/select_pkeycache.result b/mysql-test/r/select_pkeycache.result
index 378b20829f3..3d16d37c5f1 100644
--- a/mysql-test/r/select_pkeycache.result
+++ b/mysql-test/r/select_pkeycache.result
@@ -5302,4 +5302,24 @@ INSERT INTO t2 VALUES (3),(4);
 SELECT * FROM t1, t2 WHERE a=3 AND a=b;
 a	b
 drop table t1,t2;
+#
+# Bug mdev-4250: wrong transformation of WHERE condition with OR
+#
+CREATE TABLE t1 (pk int PRIMARY KEY, a int);
+INSERT INTO t1 VALUES (3,0), (2,0), (4,1), (5,0), (1,0);
+SELECT * FROM t1 WHERE (1=2 OR t1.pk=2) AND t1.a <> 0;
+pk	a
+EXPLAIN EXTENDED 
+SELECT * FROM t1 WHERE (1=2 OR t1.pk=2) AND t1.a <> 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select 2 AS `pk`,0 AS `a` from `test`.`t1` where ((0 <> 0))
+DROP TABLE t1;
+SELECT * FROM mysql.time_zone 
+WHERE ( NOT (Use_leap_seconds <= Use_leap_seconds AND Time_zone_id != 1) 
+AND Time_zone_id = Time_zone_id 
+OR Time_zone_id <> Time_zone_id ) 
+AND Use_leap_seconds <> 'N';
+Time_zone_id	Use_leap_seconds
 End of 5.3 tests
diff --git a/mysql-test/r/show_check.result b/mysql-test/r/show_check.result
index 1818713d443..2b7439b09e0 100644
--- a/mysql-test/r/show_check.result
+++ b/mysql-test/r/show_check.result
@@ -198,7 +198,7 @@ show create table t2;
 Table	Create Table
 t2	CREATE TEMPORARY TABLE `t2` (
   `a` int(11) NOT NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 DELAY_KEY_WRITE=1
 drop table t2;
 create table t1 (
 test_set set( 'val1', 'val2', 'val3' ) not null default '',
diff --git a/mysql-test/r/show_explain.result b/mysql-test/r/show_explain.result
index da132a102e2..be0b1c28b06 100644
--- a/mysql-test/r/show_explain.result
+++ b/mysql-test/r/show_explain.result
@@ -442,9 +442,9 @@ WHERE pk= (SELECT MAX(pk) FROM t2 WHERE pk = 3)
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	20	Using where
-2	SUBQUERY	t2	const	PRIMARY	PRIMARY	4	const	1	Using where
+2	SUBQUERY	t2	const	PRIMARY	PRIMARY	4	const	1	
 3	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
-set @show_explain_probe_select_id=2;
+set @show_explain_probe_select_id=1;
 set debug_dbug='+d,show_explain_probe_do_select';
 SELECT * FROM t2 WHERE a = 
 (SELECT MAX(a) FROM t2 
@@ -453,7 +453,7 @@ WHERE pk= (SELECT MAX(pk) FROM t2 WHERE pk = 3)
 show explain for $thr2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	20	Using where
-2	SUBQUERY	t2	const	PRIMARY	PRIMARY	4	const	1	Using where
+2	SUBQUERY	t2	const	PRIMARY	PRIMARY	4	const	1	
 3	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
 Note	1003	SELECT * FROM t2 WHERE a = 
diff --git a/mysql-test/r/str_to_datetime_457.result b/mysql-test/r/str_to_datetime_457.result
index 4fd0d00691c..630be9ffbaa 100644
--- a/mysql-test/r/str_to_datetime_457.result
+++ b/mysql-test/r/str_to_datetime_457.result
@@ -12,12 +12,12 @@ Warning	1292	Truncated incorrect datetime value: '2012103123595912'
 Warning	1292	Truncated incorrect datetime value: '20121031235959123'
 select cast(0 as date), cast('0000-00-00' as date), cast('0' as date);
 cast(0 as date)	cast('0000-00-00' as date)	cast('0' as date)
-0000-00-00	0000-00-00	NULL
+0000-00-00	0000-00-00	0000-00-00
 Warnings:
 Warning	1292	Incorrect datetime value: '0'
 select extract(hour from '100000:02:03'), extract(hour from '100000:02:03 ');
 extract(hour from '100000:02:03')	extract(hour from '100000:02:03 ')
-NULL	NULL
+0	0
 Warnings:
 Warning	1292	Truncated incorrect time value: '100000:02:03'
 Warning	1292	Truncated incorrect time value: '100000:02:03 '
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index 5f9376bba89..b3536661125 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -429,7 +429,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select 1 AS `1` from `test`.`t1` where (1 = (select 1 union select 1))
+Note	1003	select 1 AS `1` from `test`.`t1` where 1
 drop table t1;
 CREATE TABLE `t1` (
 `numeropost` mediumint(8) unsigned NOT NULL auto_increment,
@@ -558,10 +558,10 @@ Warnings:
 Note	1003	select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where (`test`.`t1`.`numeropost` = '1')
 EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM t1 WHERE numeropost='1');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using where; Using index
+1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using index
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
-Note	1003	select `test`.`t1`.`numreponse` AS `numreponse` from `test`.`t1` where ((`test`.`t1`.`numeropost` = '1') and (`test`.`t1`.`numreponse` = (select max(`test`.`t1`.`numreponse`) from `test`.`t1` where (`test`.`t1`.`numeropost` = '1'))))
+Note	1003	select 3 AS `numreponse` from `test`.`t1` where ((1 = '1'))
 drop table t1;
 CREATE TABLE t1 (a int(1));
 INSERT INTO t1 VALUES (1);
@@ -1371,7 +1371,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
 insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
 explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ref	salary	salary	5	const	0	0.00	Using where
+1	PRIMARY	t1	ref	salary	salary	5	const	1	100.00	Using where
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
 Note	1003	select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
@@ -1457,7 +1457,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	75.00	Using where; Using join buffer (flat, BNL join)
 1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`b`))
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (`test`.`t1`.`a` = `test`.`t2`.`a`))
 drop table t1, t2, t3;
 create table t1 (a int, b int, index a (a,b));
 create table t2 (a int, index a (a));
@@ -1500,7 +1500,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t3	index	a	a	5	NULL	3	100.00	Using where; Using index
 1	PRIMARY	t1	ref	a	a	10	test.t2.a,test.t3.a	116	100.00	Using index; FirstMatch(t2)
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` = `test`.`t3`.`a`))
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`b` = `test`.`t3`.`a`) and (`test`.`t1`.`a` = `test`.`t2`.`a`))
 insert into t1 values (3,31);
 select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
 a
@@ -2973,7 +2973,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	100.00	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	9	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N'))
+Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where (`test`.`t2`.`flag` = 'N')
 explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	
diff --git a/mysql-test/r/subselect3.result b/mysql-test/r/subselect3.result
index ed07578fa17..1a33fb0c6a3 100644
--- a/mysql-test/r/subselect3.result
+++ b/mysql-test/r/subselect3.result
@@ -314,7 +314,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	index_subquery	idx	idx	5	func	4	100.00	Using where; Full scan on NULL key
 Warnings:
 Note	1276	Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`b`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`)))) and trigcond(trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`))))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`))))))) AS `Z` from `test`.`t2` where ((`test`.`t2`.`b` = 10) and (`test`.`t2`.`a` = 10))
+Note	1003	select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`b`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`)))) and trigcond(trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`))))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`))))))) AS `Z` from `test`.`t2` where ((`test`.`t2`.`a` = 10) and (`test`.`t2`.`b` = 10))
 drop table t1, t2;
 create table t1 (oref char(4), grp int, ie int);
 insert into t1 (oref, grp, ie) values
@@ -1416,7 +1416,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	c	eq_ref	PRIMARY	PRIMARY	4	test.cona.idContact	1	100.00	Using where
 1	PRIMARY	a	eq_ref	PRIMARY	PRIMARY	4	test.c.idObj	1	100.00	Using index; End temporary
 Warnings:
-Note	1003	select `test`.`a`.`idIndividual` AS `idIndividual` from `test`.`t1` `a` semi join (`test`.`t3` `cona` join `test`.`t2` `c`) where ((`test`.`c`.`idContact` = `test`.`cona`.`idContact`) and (`test`.`a`.`idIndividual` = `test`.`c`.`idObj`) and (`test`.`cona`.`postalStripped` = 'T2H3B2'))
+Note	1003	select `test`.`a`.`idIndividual` AS `idIndividual` from `test`.`t1` `a` semi join (`test`.`t3` `cona` join `test`.`t2` `c`) where ((`test`.`cona`.`postalStripped` = 'T2H3B2') and (`test`.`a`.`idIndividual` = `test`.`c`.`idObj`) and (`test`.`c`.`idContact` = `test`.`cona`.`idContact`))
 set @@optimizer_switch=@save_optimizer_switch;
 drop table t1,t2,t3;
 #
diff --git a/mysql-test/r/subselect3_jcl6.result b/mysql-test/r/subselect3_jcl6.result
index 4f85f0faaab..5bae1453a5e 100644
--- a/mysql-test/r/subselect3_jcl6.result
+++ b/mysql-test/r/subselect3_jcl6.result
@@ -324,7 +324,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	index_subquery	idx	idx	5	func	4	100.00	Using where; Full scan on NULL key
 Warnings:
 Note	1276	Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`b`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`)))) and trigcond(trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`))))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`))))))) AS `Z` from `test`.`t2` where ((`test`.`t2`.`b` = 10) and (`test`.`t2`.`a` = 10))
+Note	1003	select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`b`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`)))) and trigcond(trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`))))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`))))))) AS `Z` from `test`.`t2` where ((`test`.`t2`.`a` = 10) and (`test`.`t2`.`b` = 10))
 drop table t1, t2;
 create table t1 (oref char(4), grp int, ie int);
 insert into t1 (oref, grp, ie) values
@@ -1426,7 +1426,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	c	eq_ref	PRIMARY	PRIMARY	4	test.cona.idContact	1	100.00	Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
 1	PRIMARY	a	eq_ref	PRIMARY	PRIMARY	4	test.c.idObj	1	100.00	Using index; End temporary
 Warnings:
-Note	1003	select `test`.`a`.`idIndividual` AS `idIndividual` from `test`.`t1` `a` semi join (`test`.`t3` `cona` join `test`.`t2` `c`) where ((`test`.`c`.`idContact` = `test`.`cona`.`idContact`) and (`test`.`a`.`idIndividual` = `test`.`c`.`idObj`) and (`test`.`cona`.`postalStripped` = 'T2H3B2'))
+Note	1003	select `test`.`a`.`idIndividual` AS `idIndividual` from `test`.`t1` `a` semi join (`test`.`t3` `cona` join `test`.`t2` `c`) where ((`test`.`cona`.`postalStripped` = 'T2H3B2') and (`test`.`a`.`idIndividual` = `test`.`c`.`idObj`) and (`test`.`c`.`idContact` = `test`.`cona`.`idContact`))
 set @@optimizer_switch=@save_optimizer_switch;
 drop table t1,t2,t3;
 #
diff --git a/mysql-test/r/subselect4.result b/mysql-test/r/subselect4.result
index 0d5209d0ec2..ff768886434 100644
--- a/mysql-test/r/subselect4.result
+++ b/mysql-test/r/subselect4.result
@@ -869,7 +869,7 @@ NULL
 EXPLAIN
 SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No matching min/max row
 SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2);
 f1	f2
@@ -960,7 +960,7 @@ NULL
 EXPLAIN
 SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No matching min/max row
 SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2);
 f1	f2
@@ -1055,7 +1055,7 @@ NULL
 EXPLAIN
 SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2 WHERE f3 > 10);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No matching min/max row
 SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2 WHERE f3 > 10);
 f1	f2
@@ -1146,7 +1146,7 @@ NULL
 EXPLAIN
 SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2 WHERE f3 > 10);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No matching min/max row
 SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT min(f3)+f3, min(f4)+f3+max(f4) FROM t2 WHERE f3 > 10);
 f1	f2
@@ -2012,7 +2012,7 @@ FROM t2 JOIN t3 ON t3.f4 = t2.f4
 WHERE t3.f1 = 8
 GROUP BY 1, 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t3	system	NULL	NULL	NULL	NULL	1	Using temporary; Using filesort
+1	PRIMARY	t3	system	NULL	NULL	NULL	NULL	1	Using filesort
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 3	MATERIALIZED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
@@ -2325,5 +2325,19 @@ ORDER BY alias1.b;
 pk	b	pk	b
 1	1	1	1
 drop table t1, t2, t3;
+#
+# MDEV-4144 simple subquery causes full scan instead of range scan
+#
+CREATE TABLE t1 (id int not null auto_increment, x int not null, primary key(id));
+INSERT INTO t1 (x) VALUES (0),(0),(0);
+EXPLAIN
+SELECT x FROM t1 WHERE id > (SELECT MAX(id) - 1000 FROM t1) ORDER BY x LIMIT 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	range	PRIMARY	PRIMARY	4	NULL	3	Using where; Using filesort
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+SELECT x FROM t1 WHERE id > (SELECT MAX(id) - 1000 FROM t1) ORDER BY x LIMIT 1;
+x
+0
+drop table t1;
 SET optimizer_switch= @@global.optimizer_switch;
 set @@tmp_table_size= @@global.tmp_table_size;
diff --git a/mysql-test/r/subselect_exists2in.result b/mysql-test/r/subselect_exists2in.result
new file mode 100644
index 00000000000..efbbe08cede
--- /dev/null
+++ b/mysql-test/r/subselect_exists2in.result
@@ -0,0 +1,865 @@
+drop table if exists t1,t2,t3;
+set optimizer_switch='exists_to_in=on';
+#
+# LP BUG#884644 exists2in broke name resolution
+#
+CREATE TABLE t1 (f1 integer);
+SELECT * FROM t1 WHERE EXISTS (SELECT NO_SUCH_TABLE.NO_SUCH_FIELD FROM t1);
+ERROR 42S22: Unknown column 'NO_SUCH_TABLE.NO_SUCH_FIELD' in 'field list'
+drop table t1;
+#
+# LP BUG#884657 Wrong result with exists2in , correlated subquery
+#
+CREATE TABLE t1 ( a varchar(1)) ;
+INSERT INTO t1 VALUES ('c'),('b');
+CREATE TABLE t2 ( b varchar(1)) ;
+INSERT INTO t2 VALUES ('v'),('v'),('c'),(NULL),('x'),('i'),('e'),('p'),('s'),('j'),('z'),('c'),('a'),('q'),('y'),(NULL),('r'),('v'),(NULL),('r');
+CREATE TABLE t3 ( a int NOT NULL , b varchar(1)) ;
+INSERT INTO t3 VALUES (29,'c');
+SELECT *
+FROM t1, t2
+WHERE EXISTS (
+SELECT a
+FROM t3
+WHERE t3.b = t1.a
+AND t3.b <> t2.b
+);
+a	b
+c	v
+c	v
+c	x
+c	i
+c	e
+c	p
+c	s
+c	j
+c	z
+c	a
+c	q
+c	y
+c	r
+c	v
+c	r
+INSERT INTO t3 VALUES (2,'c');
+alter table t1 add index aa (a);
+alter table t3 add index bb (b);
+-- EXIST to IN then semijoin (has priority over IN to EXISTS)
+set optimizer_switch='exists_to_in=on,in_to_exists=on,semijoin=on,materialization=off,subquery_cache=off';
+SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
+a
+c
+explain extended
+SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	aa	aa	4	NULL	2	100.00	Using index
+1	PRIMARY	t3	ALL	bb	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t3`) where (`test`.`t3`.`b` = `test`.`t1`.`a`)
+-- EXIST to IN then IN to EXISTS
+set optimizer_switch='exists_to_in=on,in_to_exists=on,semijoin=off,materialization=off,subquery_cache=off';
+SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
+a
+c
+explain extended
+SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	aa	4	NULL	2	100.00	Using where; Using index
+2	DEPENDENT SUBQUERY	t3	ALL	bb	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t3`.`b` from `test`.`t3` where (<cache>(`test`.`t1`.`a`) = `test`.`t3`.`b`)))
+-- EXIST2IN then MATERIALIZATION
+set optimizer_switch='exists_to_in=on,in_to_exists=off,semijoin=off,materialization=on,subquery_cache=off';
+SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
+a
+c
+explain extended
+SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	aa	4	NULL	2	100.00	Using where; Using index
+2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t3`.`b` from `test`.`t3` where 1 ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`b`)))))
+-- NO EXIST2IN
+set optimizer_switch='exists_to_in=off,subquery_cache=off';
+SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
+a
+c
+explain extended
+SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t3 WHERE t3.b = t1.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	aa	4	NULL	2	100.00	Using where; Using index
+2	DEPENDENT SUBQUERY	t3	ALL	bb	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`b` = `test`.`t1`.`a`))
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+drop table t1,t2,t3;
+# 
+# From group_min_max.test
+# 
+create table t1 (
+a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' '
+);
+insert into t1 (a1, a2, b, c, d) values
+('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
+('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
+('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
+('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
+('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
+('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
+('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
+('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
+('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
+('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
+('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
+('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'),
+('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'),
+('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'),
+('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'),
+('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'),
+('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
+('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
+('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
+('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
+('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
+('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
+('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
+('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
+('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
+('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
+('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
+('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'),
+('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'),
+('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'),
+('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'),
+('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4');
+create index idx_t1_0 on t1 (a1);
+create index idx_t1_1 on t1 (a1,a2,b,c);
+create index idx_t1_2 on t1 (a1,a2,b);
+analyze table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Table is already up to date
+create table t2 (
+a1 char(64), a2 char(64) not null, b char(16), c char(16), d char(16), dummy char(64) default ' '
+);
+insert into t2 select * from t1;
+insert into t2 (a1, a2, b, c, d) values
+('a','a',NULL,'a777','xyz'),('a','a',NULL,'a888','xyz'),('a','a',NULL,'a999','xyz'),
+('a','a','a',NULL,'xyz'),
+('a','a','b',NULL,'xyz'),
+('a','b','a',NULL,'xyz'),
+('c','a',NULL,'c777','xyz'),('c','a',NULL,'c888','xyz'),('c','a',NULL,'c999','xyz'),
+('d','b','b',NULL,'xyz'),
+('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),
+('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),
+('a','a',NULL,'a777','xyz'),('a','a',NULL,'a888','xyz'),('a','a',NULL,'a999','xyz'),
+('a','a','a',NULL,'xyz'),
+('a','a','b',NULL,'xyz'),
+('a','b','a',NULL,'xyz'),
+('c','a',NULL,'c777','xyz'),('c','a',NULL,'c888','xyz'),('c','a',NULL,'c999','xyz'),
+('d','b','b',NULL,'xyz'),
+('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),
+('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz');
+create index idx_t2_0 on t2 (a1);
+create index idx_t2_1 on t2 (a1,a2,b,c);
+create index idx_t2_2 on t2 (a1,a2,b);
+analyze table t2;
+Table	Op	Msg_type	Msg_text
+test.t2	analyze	status	Table is already up to date
+create table t3 (
+a1 char(1), a2 char(1), b char(1), c char(4) not null, d char(3), dummy char(1) default ' '
+);
+insert into t3 (a1, a2, b, c, d) values
+('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
+('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
+('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
+('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
+('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
+('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
+('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
+('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
+('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
+('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
+('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
+('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
+insert into t3 (a1, a2, b, c, d) values
+('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
+('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
+('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
+('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
+('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
+('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
+('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
+('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
+('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
+('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
+('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
+('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
+insert into t3 (a1, a2, b, c, d) values
+('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
+('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
+('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
+('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
+('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
+('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
+('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
+('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
+('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
+('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
+('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
+('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
+insert into t3 (a1, a2, b, c, d) values
+('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
+('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
+('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
+('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
+('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
+('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
+('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
+('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
+('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
+('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
+('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
+('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
+create index idx_t3_0 on t3 (a1);
+create index idx_t3_1 on t3 (a1,a2,b,c);
+create index idx_t3_2 on t3 (a1,a2,b);
+analyze table t3;
+Table	Op	Msg_type	Msg_text
+test.t3	analyze	status	Table is already up to date
+explain select a1,a2,b,c,min(c), max(c) from t1
+where exists ( select * from t2
+where t2.c in (select c from t3 where t3.c > t1.b) and
+t2.c > 'b1' )
+group by a1,a2,b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	index	NULL	idx_t1_1	163	NULL	128	Using where; Using index
+2	DEPENDENT SUBQUERY	t2	index	NULL	idx_t2_1	163	NULL	164	Using where; Using index
+2	DEPENDENT SUBQUERY	t3	index	NULL	idx_t3_1	10	NULL	192	Using where; Using index; FirstMatch(t2); Using join buffer (flat, BNL join)
+select a1,a2,b,c,min(c), max(c) from t1
+where exists ( select * from t2
+where t2.c in (select c from t3 where t3.c > t1.b) and
+t2.c > 'b1' )
+group by a1,a2,b;
+a1	a2	b	c	min(c)	max(c)
+a	a	a	a111	a111	d111
+a	a	b	e112	e112	h112
+a	b	a	i121	i121	l121
+a	b	b	m122	m122	p122
+b	a	a	a211	a211	d211
+b	a	b	e212	e212	h212
+b	b	a	i221	i221	l221
+b	b	b	m222	m222	p222
+c	a	a	a311	a311	d311
+c	a	b	e312	e312	h312
+c	b	a	i321	i321	l321
+c	b	b	m322	m322	p322
+d	a	a	a411	a411	d411
+d	a	b	e412	e412	h412
+d	b	a	i421	i421	l421
+d	b	b	m422	m422	p422
+explain select a1,a2,b,c,min(c), max(c) from t1
+where exists ( select * from t2
+where t2.c in (select c from t3 where t3.c > t1.c) and
+t2.c > 'b1' )
+group by a1,a2,b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	index	NULL	idx_t1_1	163	NULL	128	Using where; Using index
+2	DEPENDENT SUBQUERY	t2	index	NULL	idx_t2_1	163	NULL	164	Using where; Using index
+2	DEPENDENT SUBQUERY	t3	index	NULL	idx_t3_1	10	NULL	192	Using where; Using index; FirstMatch(t2); Using join buffer (flat, BNL join)
+select a1,a2,b,c,min(c), max(c) from t1
+where exists ( select * from t2
+where t2.c in (select c from t3 where t3.c > t1.c) and
+t2.c > 'b1' )
+group by a1,a2,b;
+a1	a2	b	c	min(c)	max(c)
+a	a	a	a111	a111	d111
+a	a	b	e112	e112	h112
+a	b	a	i121	i121	l121
+a	b	b	m122	m122	p122
+b	a	a	a211	a211	d211
+b	a	b	e212	e212	h212
+b	b	a	i221	i221	l221
+b	b	b	m222	m222	p222
+c	a	a	a311	a311	d311
+c	a	b	e312	e312	h312
+c	b	a	i321	i321	l321
+c	b	b	m322	m322	o322
+d	a	a	a411	a411	d411
+d	a	b	e412	e412	h412
+d	b	a	i421	i421	l421
+d	b	b	m422	m422	o422
+drop table t1, t2, t3;
+CREATE TABLE t1 ( a INT );
+INSERT INTO t1 VALUES (7),(0);
+CREATE TABLE t2 ( b INT );
+INSERT INTO t2 VALUES (0),(8);
+SELECT * FROM t1 WHERE
+EXISTS ( SELECT * FROM t2 WHERE b = a )
+OR a > 0;
+a
+7
+0
+explain extended
+SELECT * FROM t1 WHERE
+EXISTS ( SELECT * FROM t2 WHERE b = a )
+OR a > 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`b` from `test`.`t2` where 1 ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`b`)))))) or (`test`.`t1`.`a` > 0))
+drop tables t1,t2;
+CREATE TABLE t1 ( a INT );
+INSERT INTO t1 VALUES (1),(5);
+CREATE TABLE t2 ( b INT ) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1);
+CREATE TABLE t3 ( c INT );
+INSERT INTO t3 VALUES (4),(5);
+SET optimizer_switch='exists_to_in=on,subquery_cache=off,materialization=on,in_to_exists=off,semijoin=off';
+explain extended
+SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	1	100.00	
+3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.t2.b' of SELECT #3 was resolved in SELECT #2
+Note	1003	select (select 1 from dual where (not(((1 is not null) and <in_optimizer>(1,1 in ( <materialize> (select `test`.`t3`.`c` from `test`.`t3` where (`test`.`t3`.`c` is not null) ), <primary_index_lookup>(1 in <temporary table> on distinct_key where ((1 = `<subquery3>`.`c`))))))))) AS `( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )` from `test`.`t1`
+SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
+( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )
+1
+1
+SET optimizer_switch='exists_to_in=on,subquery_cache=off';
+explain extended
+SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	1	100.00	
+3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.t2.b' of SELECT #3 was resolved in SELECT #2
+Note	1003	select (select 1 from dual where (not(((1 is not null) and <in_optimizer>(1,1 in ( <materialize> (select `test`.`t3`.`c` from `test`.`t3` where (`test`.`t3`.`c` is not null) ), <primary_index_lookup>(1 in <temporary table> on distinct_key where ((1 = `<subquery3>`.`c`))))))))) AS `( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )` from `test`.`t1`
+SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
+( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )
+1
+1
+SET optimizer_switch='exists_to_in=off,subquery_cache=off';
+explain extended
+SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	1	100.00	
+3	SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.t2.b' of SELECT #3 was resolved in SELECT #2
+Note	1003	select (select 1 from dual where (not(exists(select `test`.`t3`.`c` from `test`.`t3` where (`test`.`t3`.`c` = 1))))) AS `( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )` from `test`.`t1`
+SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
+( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )
+1
+1
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+drop table t1,t2,t3;
+# multi condition test
+CREATE TABLE t1 ( a varchar(1), a1 varchar(1)) ;
+INSERT INTO t1 VALUES ('c', 'c'), ('b', 'b');
+CREATE TABLE t3 ( a int NOT NULL , b varchar(1), b1 varchar(1)) ;
+INSERT INTO t3 VALUES (29,'c','c');
+INSERT INTO t3 VALUES (2,'c','c');
+alter table t1 add index aa (a,a1);
+alter table t3 add index bb (b,b1);
+-- EXIST to IN then semijoin (has priority over IN to EXISTS)
+set optimizer_switch='exists_to_in=on,in_to_exists=on,semijoin=on,materialization=off,subquery_cache=off';
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
+a	a1
+c	c
+explain extended
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	index	bb	bb	8	NULL	2	100.00	Using where; Using index; LooseScan
+1	PRIMARY	t1	ref	aa	aa	8	test.t3.b,test.t3.b1	2	100.00	Using index
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` semi join (`test`.`t3`) where ((`test`.`t1`.`a` = `test`.`t3`.`b`) and (`test`.`t1`.`a1` = `test`.`t3`.`b1`))
+-- EXIST to IN then IN to EXISTS
+set optimizer_switch='exists_to_in=on,in_to_exists=on,semijoin=off,materialization=off,subquery_cache=off';
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
+a	a1
+c	c
+explain extended
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	aa	8	NULL	2	100.00	Using where; Using index
+2	DEPENDENT SUBQUERY	t3	index_subquery	bb	bb	8	func,func	2	100.00	Using index; Using where
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`a1`),<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t3 on bb where ((<cache>(`test`.`t1`.`a`) = `test`.`t3`.`b`) and (<cache>(`test`.`t1`.`a1`) = `test`.`t3`.`b1`)))))
+-- EXIST2IN then MATERIALIZATION
+set optimizer_switch='exists_to_in=on,in_to_exists=off,semijoin=off,materialization=on,subquery_cache=off';
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
+a	a1
+c	c
+explain extended
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	aa	8	NULL	2	100.00	Using where; Using index
+2	MATERIALIZED	t3	index	NULL	bb	8	NULL	2	100.00	Using index
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`a1`),(`test`.`t1`.`a`,`test`.`t1`.`a1`) in ( <materialize> (select `test`.`t3`.`b`,`test`.`t3`.`b1` from `test`.`t3` where 1 ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`b`) and (`test`.`t1`.`a1` = `<subquery2>`.`b1`)))))
+-- NO EXIST2IN
+set optimizer_switch='exists_to_in=off,subquery_cache=off';
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
+a	a1
+c	c
+explain extended
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t3 WHERE t3.b = t1.a and t3.b1 = t1.a1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	aa	8	NULL	2	100.00	Using where; Using index
+2	DEPENDENT SUBQUERY	t3	ref	bb	bb	8	test.t1.a,test.t1.a1	2	100.00	Using index
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` where exists(select 1 from `test`.`t3` where ((`test`.`t3`.`b` = `test`.`t1`.`a`) and (`test`.`t3`.`b1` = `test`.`t1`.`a1`)))
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+drop table t1,t3;
+#
+# MDEV-159 Assertion about not marked for read failed in
+# String* Field_varstring::val_str(String*, String*)
+#
+SET optimizer_switch = REPLACE( @@optimizer_switch, '=on', '=off' );
+SET optimizer_switch='in_to_exists=on,exists_to_in=on';
+CREATE TABLE t1 ( a VARCHAR(1) );
+INSERT INTO t1 VALUES ('k'),('m');
+CREATE TABLE t2 ( b INT,
+c VARCHAR(1),
+d VARCHAR(1) NOT NULL );
+INSERT INTO t2 VALUES 
+(4,'j','j'),(6,'v','v');
+CREATE ALGORITHM=MERGE VIEW v AS SELECT * FROM t2 WHERE b < 1;
+SELECT c FROM v  
+WHERE EXISTS ( 
+SELECT * FROM t1, t2 
+WHERE a <= v.d AND b = v.b 
+);
+c
+explain extended
+SELECT c FROM v  
+WHERE EXISTS ( 
+SELECT * FROM t1, t2 
+WHERE a <= v.d AND b = v.b 
+);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1276	Field or reference 'v.d' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'v.b' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t2`.`c` AS `c` from `test`.`t2` where (<in_optimizer>(`test`.`t2`.`b`,<exists>(select `test`.`t2`.`b` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a` <= `test`.`t2`.`d`) and (<cache>(`test`.`t2`.`b`) = `test`.`t2`.`b`)))) and (`test`.`t2`.`b` < 1))
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+drop view v;
+drop table t1,t2;
+#
+# MDEV-160 Exists2In: Crash in in hp_movelink with subquery_cache=ON
+#
+SET optimizer_switch = 'in_to_exists=on,subquery_cache=on,exists_to_in=on';
+CREATE TABLE t1 (  
+a VARCHAR(3) NOT NULL,  
+b VARCHAR(50)
+);
+INSERT INTO t1 VALUES 
+('USA','Chinese'),('USA','English'),
+('FRA','French'),('ITA','Italian');
+CREATE TABLE t2 ( c VARCHAR(3) );
+INSERT INTO t2 VALUES ('USA'),('FRA');
+SELECT * FROM t1 AS alias1, t1 AS alias2 
+WHERE EXISTS ( 
+SELECT * FROM t1, t2 
+WHERE a <= alias2.a AND c = alias1.b 
+) OR alias1 .a = 'foo';
+a	b	a	b
+SELECT * FROM t1 AS alias1, t1 AS alias2 
+WHERE EXISTS ( 
+SELECT * FROM t1, t2 
+WHERE a <= alias2.a AND c = alias1.a 
+) OR alias1 .a = 'foo';
+a	b	a	b
+USA	Chinese	USA	Chinese
+USA	English	USA	Chinese
+FRA	French	USA	Chinese
+USA	Chinese	USA	English
+USA	English	USA	English
+FRA	French	USA	English
+USA	Chinese	FRA	French
+USA	English	FRA	French
+FRA	French	FRA	French
+USA	Chinese	ITA	Italian
+USA	English	ITA	Italian
+FRA	French	ITA	Italian
+drop table t1,t2;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# MDEV-160 Exists2In: Crash in in hp_movelink with subquery_cache=ON
+#
+SET optimizer_switch = 'in_to_exists=on,subquery_cache=on,exists_to_in=on';
+CREATE TABLE t1 (  
+a VARCHAR(3) NOT NULL,  
+b VARCHAR(50)
+);
+INSERT INTO t1 VALUES 
+('USA','Chinese'),('USA','English'),
+('FRA','French'),('ITA','Italian');
+CREATE TABLE t2 ( c VARCHAR(3) );
+INSERT INTO t2 VALUES ('USA'),('FRA');
+SELECT * FROM t1 AS alias1, t1 AS alias2 
+WHERE EXISTS ( 
+SELECT * FROM t1, t2 
+WHERE a <= alias2.a AND c = alias1.b 
+) OR alias1 .a = 'foo';
+a	b	a	b
+explain extended
+SELECT * FROM t1 AS alias1, t1 AS alias2 
+WHERE EXISTS ( 
+SELECT * FROM t1, t2 
+WHERE a <= alias2.a AND c = alias1.b 
+) OR alias1 .a = 'foo';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	alias1	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	PRIMARY	alias2	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (flat, BNL join)
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1276	Field or reference 'test.alias2.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.alias1.b' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`alias1`.`a` AS `a`,`test`.`alias1`.`b` AS `b`,`test`.`alias2`.`a` AS `a`,`test`.`alias2`.`b` AS `b` from `test`.`t1` `alias1` join `test`.`t1` `alias2` where (<expr_cache><`test`.`alias1`.`b`,`test`.`alias2`.`a`>(<in_optimizer>(`test`.`alias1`.`b`,<exists>(select `test`.`t2`.`c` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a` <= `test`.`alias2`.`a`) and (<cache>(`test`.`alias1`.`b`) = `test`.`t2`.`c`))))) or (`test`.`alias1`.`a` = 'foo'))
+drop table t1,t2;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# MDEV-245 Exists2In: Wrong result (extra rows) with
+# exists_to_in=ON, materialization=OFF, NOT EXISTS subquery
+#
+SET optimizer_switch='materialization=off,exists_to_in=on';
+CREATE TABLE t1 ( a INT ) ;
+INSERT INTO t1 VALUES (0),(8),(1);
+CREATE TABLE t2 ( b INT ) ;
+INSERT INTO t2 VALUES (1),(2),(3);
+SELECT * FROM t1 WHERE NOT EXISTS ( SELECT * FROM t2 WHERE b = a );
+a
+0
+8
+explain extended
+SELECT * FROM t1 WHERE NOT EXISTS ( SELECT * FROM t2 WHERE b = a );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where (not(((`test`.`t1`.`a` is not null) and <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`b` from `test`.`t2` where ((`test`.`t2`.`b` is not null) and (<cache>(`test`.`t1`.`a`) = `test`.`t2`.`b`))))))))
+drop table t1,t2;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# MDEV-243 Wrong result (extra or missing rows) with
+# exists_to_in + materialization, EXISTS subquery
+#
+SET optimizer_switch='index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=off,exists_to_in=on';
+CREATE TABLE t1 ( a VARCHAR(1), b VARCHAR(1) );
+INSERT INTO t1 VALUES ('v','v'),('s','v');
+SELECT * FROM t1 AS alias
+WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
+a	b
+s	v
+explain extended
+SELECT * FROM t1 AS alias
+WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	alias	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(alias); Using join buffer (flat, BNL join)
+Warnings:
+Note	1276	Field or reference 'test.alias.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.alias.b' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`alias`.`a` AS `a`,`test`.`alias`.`b` AS `b` from `test`.`t1` `alias` semi join (`test`.`t1`) where ((`test`.`t1`.`a` = `test`.`alias`.`b`) and (`test`.`alias`.`b` > `test`.`alias`.`a`))
+SET optimizer_switch = REPLACE( @@optimizer_switch, '=on', '=off' );
+SET optimizer_switch = 'exists_to_in=on,materialization=on,semijoin=off';
+SELECT * FROM t1 AS alias
+WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
+a	b
+s	v
+explain extended
+SELECT * FROM t1 AS alias
+WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	alias	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.alias.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.alias.b' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`alias`.`a` AS `a`,`test`.`alias`.`b` AS `b` from `test`.`t1` `alias` where <in_optimizer>(`test`.`alias`.`b`,<exists>(select `test`.`t1`.`a` from `test`.`t1` where ((`test`.`t1`.`a` > `test`.`alias`.`a`) and (<cache>(`test`.`alias`.`b`) = `test`.`t1`.`a`))))
+SET optimizer_switch = 'exists_to_in=on,materialization=on,semijoin=on';
+SELECT * FROM t1 AS alias
+WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
+a	b
+s	v
+explain extended
+SELECT * FROM t1 AS alias
+WHERE EXISTS ( SELECT * FROM t1 WHERE a > alias.a AND a = alias.b );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	alias	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Start temporary; End temporary
+Warnings:
+Note	1276	Field or reference 'test.alias.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.alias.b' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`alias`.`a` AS `a`,`test`.`alias`.`b` AS `b` from `test`.`t1` `alias` semi join (`test`.`t1`) where ((`test`.`t1`.`a` = `test`.`alias`.`b`) and (`test`.`alias`.`b` > `test`.`alias`.`a`))
+drop table t1;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# MDEV-403 Wrong result (missing rows) with subquery in
+# EXISTS and an OR condition outside
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (2),(3);
+CREATE TABLE t2 (b INT);
+INSERT INTO t2 VALUES (1),(3);
+SET optimizer_switch = 'exists_to_in=off,in_to_exists=on';
+SELECT * FROM t1 AS alias1, t2 AS alias2 
+WHERE EXISTS ( 
+SELECT 1 FROM t2 WHERE b = alias1.a AND b > alias2.b 
+) OR a = 5;
+a	b
+3	1
+SET optimizer_switch = 'exists_to_in=on,in_to_exists=on';
+SELECT * FROM t1 AS alias1, t2 AS alias2 
+WHERE EXISTS ( 
+SELECT 1 FROM t2 WHERE b = alias1.a AND b > alias2.b 
+) OR a = 5;
+a	b
+3	1
+explain extended
+SELECT * FROM t1 AS alias1, t2 AS alias2 
+WHERE EXISTS ( 
+SELECT 1 FROM t2 WHERE b = alias1.a AND b > alias2.b 
+) OR a = 5;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	alias1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	alias2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.alias1.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.alias2.b' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`alias1`.`a` AS `a`,`test`.`alias2`.`b` AS `b` from `test`.`t1` `alias1` join `test`.`t2` `alias2` where (<expr_cache><`test`.`alias1`.`a`,`test`.`alias2`.`b`>(<in_optimizer>(`test`.`alias1`.`a`,<exists>(select `test`.`t2`.`b` from `test`.`t2` where ((`test`.`t2`.`b` > `test`.`alias2`.`b`) and (<cache>(`test`.`alias1`.`a`) = `test`.`t2`.`b`))))) or (`test`.`alias1`.`a` = 5))
+drop table t1, t2;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# MDEV-404: Wrong result (extra rows) with STRAIGHT_JOIN,
+# EXISTS subquery, NOT NULL column
+# (same as above)
+#
+SET optimizer_switch = 'exists_to_in=on,in_to_exists=on';
+CREATE TABLE t1 (a INT, b VARCHAR(1) NOT NULL);
+INSERT INTO t1 VALUES (1,'s'),(2,'e');
+SELECT STRAIGHT_JOIN * FROM t1 AS alias1, t1 AS alias2 
+WHERE EXISTS ( SELECT 1 FROM t1 WHERE b < alias2.b AND a = alias1.a );
+a	b	a	b
+2	e	1	s
+drop table t1;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# MDEV-3800: ORDER BY doesn't work with exists_to_in=ON on
+# a query with EXISTS subquery and OR condition
+#
+SET optimizer_switch = 'in_to_exists=on,exists_to_in=on';
+CREATE TABLE t1 (a INT, b VARCHAR(1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (4,'j'),(6,'v'),(3,'c');
+CREATE TABLE t2 (c VARCHAR(1)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('b'),('y');
+SELECT a FROM t1
+WHERE EXISTS ( 
+SELECT 1 FROM t2 WHERE c = b 
+) OR b NOT IN ('U')  
+ORDER BY a;
+a
+3
+4
+6
+select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`b` in (select `test`.`t2`.`c` from `test`.`t2` where 1 ) or (`test`.`t1`.`b` <> 'U') order by `test`.`t1`.`a`;
+a
+3
+4
+6
+drop table t1,t2;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# correct calculation of reserved items (postreview-fix)
+#
+create table t1 (col1 int, col2 int, col3 int);
+insert into t1 values (1,2,3),(2,3,4),(4,5,6);
+create table t2 as select * from t1;
+explain extended
+select * from t1 where exists (select col2 from t2 where t2.col1=t1.col1 and t2.col2=t1.col2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	100.00	
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
+Warnings:
+Note	1276	Field or reference 'test.t1.col1' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.t1.col2' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t1`.`col1` AS `col1`,`test`.`t1`.`col2` AS `col2`,`test`.`t1`.`col3` AS `col3` from `test`.`t1` semi join (`test`.`t2`) where 1
+select * from t1 where exists (select col2 from t2 where t2.col1=t1.col1 and t2.col2=t1.col2);
+col1	col2	col3
+1	2	3
+2	3	4
+4	5	6
+drop table t1,t2;
+#
+# MDEV-3879: Exists2In: Wrong result (extra row) and unexpected
+# warning with exists_to_in=on and a NOT EXISTS subquery
+#
+SET optimizer_switch = 'exists_to_in=on';
+CREATE TABLE t1 (a1 INT, b1 CHAR(1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (3,'y'),(6,'w');
+CREATE TABLE t2 (a2 INT, b2 CHAR(1)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3,'y'),(6,'d');
+SELECT * FROM t1
+WHERE NOT EXISTS ( SELECT * FROM t2 WHERE b2 = b1 AND a2 = a1 );
+a1	b1
+6	w
+drop table t1, t2;
+#
+# MDEV-3880: Wrong result (missing rows) with exists_to_in=on,
+# LEFT JOIN and NOT EXISTS subquery.
+# (Duplicate of above MDEV-3879).
+#
+SET optimizer_switch = 'exists_to_in=on';
+CREATE TABLE t1 (a1 INT, b1 CHAR(1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (4,'b'),(5,'y');
+CREATE TABLE t2 (b2 CHAR(1)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('z'),('b');
+CREATE TABLE t3 (a3 INT, b3 CHAR(1)) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (4,'j'),(6,'v');
+SELECT * FROM t1 LEFT JOIN t2 ON ( b2 = b1 ) 
+WHERE NOT EXISTS ( SELECT * FROM t3 WHERE b3 = b2 AND a3 = a1 ) ;
+a1	b1	b2
+4	b	b
+5	y	NULL
+drop table t1, t2, t3;
+#
+# MDEV-3881: Endless loop and crash in Item_ref::real_item with
+# exists_to_in=on, NOT EXISTS subquery, merge view or from subquery,
+# constant table
+#
+SET optimizer_switch = 'exists_to_in=on';
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(7);
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (8);
+CREATE ALGORITHM=MERGE VIEW v1 AS SELECT * FROM t2;
+CREATE TABLE t3 (c INT) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (4),(6);
+SELECT * FROM t1, v1 WHERE NOT EXISTS ( SELECT * FROM t3 WHERE c = b ) AND a = b;
+a	b
+drop view v1;
+drop table t1, t2, t3;
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(7);
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (8);
+CREATE TABLE t3 (c INT) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (4),(6);
+SELECT * FROM t1, ( SELECT * FROM t2 ) alias WHERE NOT EXISTS ( SELECT * FROM t3 WHERE c = b ) AND a = b;
+a	b
+drop table t1, t2, t3;
+#
+# MDEV-3906: Server crashes in Dependency_marker::visit_field
+# on 2nd execution of PS with exists_to_in and NOT EXISTS subquery
+#
+SET optimizer_switch='exists_to_in=on';
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(7);
+PREPARE stmt FROM ' 
+SELECT * FROM t1 AS alias 
+WHERE NOT EXISTS ( SELECT * FROM t1 WHERE t1.a = alias.a ) 
+';
+EXECUTE stmt;
+a
+EXECUTE stmt;
+a
+drop table t1;
+#
+# MDEV-3904: Assertion `in_subs->has_strategy()' failed in
+# JOIN::choose_subquery_plan on 2nd execution of PS with
+# exists_to_in+semijoin, EXISTS subquery, MERGE view or FROM subquery
+#
+SET optimizer_switch='in_to_exists=on,semijoin=on,exists_to_in=on';
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (4),(6);
+CREATE ALGORITHM=MERGE VIEW v AS 
+SELECT * FROM t1 WHERE EXISTS ( SELECT * FROM t2 WHERE b = a );
+PREPARE stmt FROM ' SELECT * FROM v ';
+EXECUTE stmt;
+a
+EXECUTE stmt;
+a
+drop view v;
+drop table t1,t2;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# MDEV-3903: Server crashes in Item_cond::fix_fields on 2nd execution
+# of a prepared stmt with exists_to_in+materialization+semijoin,
+# EXISTS subquery, STRAIGHT_JOIN
+#
+SET optimizer_switch='materialization=on,semijoin=on,exists_to_in=on';
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3),(4);
+PREPARE stmt FROM
+'SELECT STRAIGHT_JOIN * FROM t1
+WHERE EXISTS ( SELECT * FROM t2 WHERE b = a )';
+EXECUTE stmt;
+a
+EXECUTE stmt;
+a
+drop table t1,t2;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+#
+# MDEV-4152: Wrong result (missing rows) with exists_to_in=on, 
+# inner joins
+#
+SET optimizer_switch='materialization=on,semijoin=on,exists_to_in=on';
+CREATE TABLE t1 (i INT, c1 CHAR(5), c2 CHAR(5), t1_field VARCHAR(1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1,'test1','test2','f'), (2,'test3','test4','d');
+CREATE TABLE t2 (t2_field VARCHAR(1)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('m'), ('b');
+CREATE TABLE t3 (t3_field VARCHAR(1)) ENGINE=MyISAM;
+INSERT INTO t3 VALUES ('b'),('c');
+SELECT * FROM t1, t2 outer_t2 
+WHERE EXISTS ( SELECT 1 FROM t2, t3 WHERE t3_field = outer_t2.t2_field AND t2_field <= t1_field );
+i	c1	c2	t1_field	t2_field
+1	test1	test2	f	b
+2	test3	test4	d	b
+drop table t1,t2,t3;
+set optimizer_switch=default;
+set optimizer_switch='exists_to_in=on';
+set optimizer_switch=default;
diff --git a/mysql-test/r/subselect_exists2in_costmat.result b/mysql-test/r/subselect_exists2in_costmat.result
new file mode 100644
index 00000000000..a46996d9bad
--- /dev/null
+++ b/mysql-test/r/subselect_exists2in_costmat.result
@@ -0,0 +1,103 @@
+set @subselect_mat_cost=@@optimizer_switch;
+set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
+set long_query_time=0.1;
+drop database if exists world;
+set names utf8;
+create database world;
+use world;
+CREATE TABLE Country (
+Code char(3) NOT NULL default '',
+Name char(52) NOT NULL default '',
+SurfaceArea float(10,2) NOT NULL default '0.00',
+Population int(11) NOT NULL default '0',
+Capital int(11) default NULL,
+PRIMARY KEY  (Code),
+UNIQUE INDEX (Name)
+);
+CREATE TABLE City (
+ID int(11) NOT NULL auto_increment,
+Name char(35) NOT NULL default '',
+Country char(3) NOT NULL default '',
+Population int(11) NOT NULL default '0',
+PRIMARY KEY  (ID),
+INDEX (Population),
+INDEX (Country) 
+);
+CREATE TABLE CountryLanguage (
+Country char(3) NOT NULL default '',
+Language char(30) NOT NULL default '',
+Percentage float(3,1) NOT NULL default '0.0',
+PRIMARY KEY  (Country, Language),
+INDEX (Percentage)
+);
+Make the schema and data more diverse by adding more indexes, nullable
+columns, and NULL data.
+create index SurfaceArea on Country(SurfaceArea);
+create index Language on CountryLanguage(Language);
+create index CityName on City(Name);
+alter table City change population population int(11) null default 0;
+select max(id) from City into @max_city_id;
+insert into City values (@max_city_id + 1,'Kilifarevo','BGR',NULL);
+SELECT COUNT(*) FROM Country;
+COUNT(*)
+239
+SELECT COUNT(*) FROM City;
+COUNT(*)
+4080
+SELECT COUNT(*) FROM CountryLanguage;
+COUNT(*)
+984
+set @@optimizer_switch = 'exists_to_in=on,in_to_exists=on,semijoin=on,materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on';
+
+1. Subquery in a disjunctive WHERE clause of the outer query.
+
+
+Q1.1m:
+MATERIALIZATION: there are too many rows in the outer query
+to be looked up in the inner table.
+EXPLAIN
+SELECT Name FROM Country
+WHERE (EXISTS (select 1 from City where City.Population > 100000 and
+Code = Country) OR
+Name LIKE 'L%') AND
+surfacearea > 1000000;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	Country	ALL	Name,SurfaceArea	NULL	NULL	NULL	239	Using where
+2	MATERIALIZED	City	ALL	Population,Country	NULL	NULL	NULL	4080	Using where
+SELECT Name FROM Country
+WHERE (EXISTS (select 1 from City where City.Population > 100000 and
+Code = Country) OR
+Name LIKE 'L%') AND
+surfacearea > 1000000;
+Name
+Algeria
+Angola
+Argentina
+Australia
+Bolivia
+Brazil
+Egypt
+South Africa
+Ethiopia
+Indonesia
+India
+Iran
+Canada
+Kazakstan
+China
+Colombia
+Congo, The Democratic Republic of the
+Libyan Arab Jamahiriya
+Mali
+Mauritania
+Mexico
+Mongolia
+Niger
+Peru
+Saudi Arabia
+Sudan
+Chad
+Russian Federation
+United States
+drop database world;
+set optimizer_switch=@subselect_mat_cost;
diff --git a/mysql-test/r/subselect_exists_to_in.result b/mysql-test/r/subselect_exists_to_in.result
new file mode 100644
index 00000000000..579277f11f9
--- /dev/null
+++ b/mysql-test/r/subselect_exists_to_in.result
@@ -0,0 +1,7021 @@
+select @@optimizer_switch like '%exists_to_in=on%';
+@@optimizer_switch like '%exists_to_in=on%'
+0
+set optimizer_switch='exists_to_in=on';
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
+drop view if exists v2;
+set @subselect_tmp=@@optimizer_switch;
+set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
+"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
+set join_cache_level=1;
+set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
+select (select 2);
+(select 2)
+2
+explain extended select (select 2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1249	Select 2 was reduced during optimization
+Note	1003	select 2 AS `(select 2)`
+SELECT (SELECT 1) UNION SELECT (SELECT 2);
+(SELECT 1)
+1
+2
+explain extended SELECT (SELECT 1) UNION SELECT (SELECT 2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+NULL	UNION RESULT	<union1,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
+Warnings:
+Note	1249	Select 2 was reduced during optimization
+Note	1249	Select 4 was reduced during optimization
+Note	1003	select 1 AS `(SELECT 1)` union select 2 AS `(SELECT 2)`
+SELECT (SELECT (SELECT 0 UNION SELECT 0));
+(SELECT (SELECT 0 UNION SELECT 0))
+0
+explain extended SELECT (SELECT (SELECT 0 UNION SELECT 0));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+3	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+4	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+NULL	UNION RESULT	<union3,4>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
+Warnings:
+Note	1249	Select 2 was reduced during optimization
+Note	1003	select (select 0 union select 0) AS `(SELECT (SELECT 0 UNION SELECT 0))`
+SELECT (SELECT 1 FROM (SELECT 1) as b HAVING a=1) as a;
+ERROR 42S22: Reference 'a' not supported (forward reference in item list)
+SELECT (SELECT 1 FROM (SELECT 1) as b HAVING b=1) as a,(SELECT 1 FROM (SELECT 1) as c HAVING a=1) as b;
+ERROR 42S22: Reference 'b' not supported (forward reference in item list)
+SELECT (SELECT 1),MAX(1) FROM (SELECT 1) as a;
+(SELECT 1)	MAX(1)
+1	1
+SELECT (SELECT a) as a;
+ERROR 42S22: Reference 'a' not supported (forward reference in item list)
+EXPLAIN EXTENDED SELECT 1 FROM (SELECT 1 as a) as b  HAVING (SELECT a)=1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<derived2>	system	NULL	NULL	NULL	NULL	1	100.00	
+3	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+2	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1276	Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1
+Note	1276	Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1
+Note	1003	select 1 AS `1` from dual having ((select 1) = 1)
+SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1;
+1
+1
+SELECT (SELECT 1), a;
+ERROR 42S22: Unknown column 'a' in 'field list'
+SELECT 1 as a FROM (SELECT 1) as b HAVING (SELECT a)=1;
+a
+1
+SELECT 1 FROM (SELECT (SELECT a) b) c;
+ERROR 42S22: Unknown column 'a' in 'field list'
+SELECT * FROM (SELECT 1 as id) b WHERE id IN (SELECT * FROM (SELECT 1 as id) c ORDER BY id);
+id
+1
+SELECT * FROM (SELECT 1) a  WHERE 1 IN (SELECT 1,1);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT 1 IN (SELECT 1);
+1 IN (SELECT 1)
+1
+SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a));
+1
+1
+select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1));
+ERROR HY000: Incorrect usage of PROCEDURE and subquery
+SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1));
+ERROR HY000: Incorrect parameters to procedure 'ANALYSE'
+SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL;
+ERROR 42S22: Unknown column 'a' in 'field list'
+SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL;
+ERROR 42S22: Unknown column 'a' in 'field list'
+SELECT (SELECT 1,2,3) = ROW(1,2,3);
+(SELECT 1,2,3) = ROW(1,2,3)
+1
+SELECT (SELECT 1,2,3) = ROW(1,2,1);
+(SELECT 1,2,3) = ROW(1,2,1)
+0
+SELECT (SELECT 1,2,3) < ROW(1,2,1);
+(SELECT 1,2,3) < ROW(1,2,1)
+0
+SELECT (SELECT 1,2,3) > ROW(1,2,1);
+(SELECT 1,2,3) > ROW(1,2,1)
+1
+SELECT (SELECT 1,2,3) = ROW(1,2,NULL);
+(SELECT 1,2,3) = ROW(1,2,NULL)
+NULL
+SELECT ROW(1,2,3) = (SELECT 1,2,3);
+ROW(1,2,3) = (SELECT 1,2,3)
+1
+SELECT ROW(1,2,3) = (SELECT 1,2,1);
+ROW(1,2,3) = (SELECT 1,2,1)
+0
+SELECT ROW(1,2,3) < (SELECT 1,2,1);
+ROW(1,2,3) < (SELECT 1,2,1)
+0
+SELECT ROW(1,2,3) > (SELECT 1,2,1);
+ROW(1,2,3) > (SELECT 1,2,1)
+1
+SELECT ROW(1,2,3) = (SELECT 1,2,NULL);
+ROW(1,2,3) = (SELECT 1,2,NULL)
+NULL
+SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'a');
+(SELECT 1.5,2,'a') = ROW(1.5,2,'a')
+1
+SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'b');
+(SELECT 1.5,2,'a') = ROW(1.5,2,'b')
+0
+SELECT (SELECT 1.5,2,'a') = ROW('1.5b',2,'b');
+(SELECT 1.5,2,'a') = ROW('1.5b',2,'b')
+0
+Warnings:
+Warning	1292	Truncated incorrect DOUBLE value: '1.5b'
+SELECT (SELECT 'b',2,'a') = ROW(1.5,2,'a');
+(SELECT 'b',2,'a') = ROW(1.5,2,'a')
+0
+SELECT (SELECT 1.5,2,'a') = ROW(1.5,'2','a');
+(SELECT 1.5,2,'a') = ROW(1.5,'2','a')
+1
+SELECT (SELECT 1.5,'c','a') = ROW(1.5,2,'a');
+(SELECT 1.5,'c','a') = ROW(1.5,2,'a')
+0
+SELECT (SELECT * FROM (SELECT 'test' a,'test' b) a);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT 1 as a,(SELECT a+a) b,(SELECT b);
+a	b	(SELECT b)
+1	2	2
+create table t1 (a int);
+create table t2 (a int, b int);
+create table t3 (a int);
+create table t4 (a int not null, b int not null);
+insert into t1 values (2);
+insert into t2 values (1,7),(2,7);
+insert into t4 values (4,8),(3,8),(5,9);
+select (select a from t1 where t1.a = a1) as a2, (select b from t2 where t2.b=a2) as a1;
+ERROR 42S22: Reference 'a1' not supported (forward reference in item list)
+select (select a from t1 where t1.a=t2.a), a from t2;
+(select a from t1 where t1.a=t2.a)	a
+NULL	1
+2	2
+select (select a from t1 where t1.a=t2.b), a from t2;
+(select a from t1 where t1.a=t2.b)	a
+NULL	1
+NULL	2
+select (select a from t1), a, (select 1 union select 2 limit 1) from t2;
+(select a from t1)	a	(select 1 union select 2 limit 1)
+2	1	1
+2	2	1
+select (select a from t3), a from t2;
+(select a from t3)	a
+NULL	1
+NULL	2
+select * from t2 where t2.a=(select a from t1);
+a	b
+2	7
+insert into t3 values (6),(7),(3);
+select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1);
+a	b
+1	7
+2	7
+(select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 order by a limit 2) limit 3;
+a	b
+1	7
+2	7
+3	8
+(select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a);
+a	b
+1	7
+2	7
+4	8
+3	8
+explain extended (select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using filesort
+3	UNION	t4	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+4	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
+NULL	UNION RESULT	<union1,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
+Warnings:
+Note	1003	(select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` = (select `test`.`t3`.`a` from `test`.`t3` order by 1 desc limit 1))) union (select `test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t4` where (`test`.`t4`.`b` = (select (max(`test`.`t2`.`a`) * 4) from `test`.`t2`)) order by `a`)
+select (select a from t3 where a<t2.a*4 order by 1 desc limit 1), a from t2;
+(select a from t3 where a<t2.a*4 order by 1 desc limit 1)	a
+3	1
+7	2
+select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
+(select * from t2 where a>1) as tt;
+(select t3.a from t3 where a<8 order by 1 desc limit 1)	a
+7	2
+set @tmp_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='derived_merge=off,derived_with_keys=off';
+explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from
+(select * from t2 where a>1) as tt;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<derived3>	ALL	NULL	NULL	NULL	NULL	2	100.00	
+3	DERIVED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using filesort
+Warnings:
+Note	1003	select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
+set optimizer_switch=@tmp_optimizer_switch;
+select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
+a
+2
+select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a > t1.a) order by 1 desc limit 1);
+a
+2
+select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a < t1.a) order by 1 desc limit 1);
+a
+select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4;
+b	(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2)
+8	7.5000
+8	4.5000
+9	7.5000
+explain extended select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	3	100.00	
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
+3	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+Warnings:
+Note	1276	Field or reference 'test.t4.a' of SELECT #3 was resolved in SELECT #1
+Note	1003	select `test`.`t4`.`b` AS `b`,<expr_cache><`test`.`t4`.`a`>((select avg((`test`.`t2`.`a` + (select min(`test`.`t3`.`a`) from `test`.`t3` where (`test`.`t3`.`a` >= `test`.`t4`.`a`)))) from `test`.`t2`)) AS `(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2)` from `test`.`t4`
+select * from t3 where exists (select * from t2 where t2.b=t3.a);
+a
+7
+select * from t3 where not exists (select * from t2 where t2.b=t3.a);
+a
+6
+3
+select * from t3 where a in (select b from t2);
+a
+7
+select * from t3 where a not in (select b from t2);
+a
+6
+3
+select * from t3 where a = some (select b from t2);
+a
+7
+select * from t3 where a <> any (select b from t2);
+a
+6
+3
+select * from t3 where a = all (select b from t2);
+a
+7
+select * from t3 where a <> all (select b from t2);
+a
+6
+3
+insert into t2 values (100, 5);
+select * from t3 where a < any (select b from t2);
+a
+6
+3
+select * from t3 where a < all (select b from t2);
+a
+3
+select * from t3 where a >= any (select b from t2);
+a
+6
+7
+explain extended select * from t3 where a >= any (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(`test`.`t2`.`b`) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`))))
+select * from t3 where a >= all (select b from t2);
+a
+7
+delete from t2 where a=100;
+select * from t3 where a in (select a,b from t2);
+ERROR 21000: Operand should contain 1 column(s)
+select * from t3 where a in (select * from t2);
+ERROR 21000: Operand should contain 1 column(s)
+insert into t4 values (12,7),(1,7),(10,9),(9,6),(7,6),(3,9),(1,10);
+select b,max(a) as ma from t4 group by b having b < (select max(t2.a) from t2 where t2.b=t4.b);
+b	ma
+insert into t2 values (2,10);
+select b,max(a) as ma from t4 group by b having ma < (select max(t2.a) from t2 where t2.b=t4.b);
+b	ma
+10	1
+delete from t2 where a=2 and b=10;
+select b,max(a) as ma from t4 group by b having b >= (select max(t2.a) from t2 where t2.b=t4.b);
+b	ma
+7	12
+create table t5 (a int);
+select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
+(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)	a
+NULL	1
+2	2
+insert into t5 values (5);
+select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
+(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)	a
+NULL	1
+2	2
+insert into t5 values (2);
+select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
+(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)	a
+NULL	1
+2	2
+explain extended select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	DEPENDENT SUBQUERY	t1	system	NULL	NULL	NULL	NULL	1	100.00	
+3	DEPENDENT UNION	t5	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
+Warnings:
+Note	1276	Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1
+Note	1003	select <expr_cache><`test`.`t2`.`a`>((select 2 from dual where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`))) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2`
+select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2;
+ERROR 21000: Subquery returns more than 1 row
+create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq));
+create table t7( uq int primary key, name char(25));
+insert into t7 values(1,"Oblastnaia bolnitsa"),(2,"Bolnitsa Krasnogo Kresta");
+insert into t6 values (1,1),(1,2),(2,2),(1,3);
+select * from t6 where exists (select * from t7 where uq = clinic_uq);
+patient_uq	clinic_uq
+1	1
+1	2
+2	2
+explain extended select * from t6 where exists (select * from t7 where uq = clinic_uq);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t7	index	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index
+1	PRIMARY	t6	ALL	i1	NULL	NULL	NULL	4	75.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1276	Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t7` join `test`.`t6` where (`test`.`t6`.`clinic_uq` = `test`.`t7`.`uq`)
+select * from t1 where a= (select a from t2,t4 where t2.b=t4.b);
+ERROR 23000: Column 'a' in field list is ambiguous
+drop table t1,t2,t3;
+CREATE TABLE t3 (a varchar(20),b char(1) NOT NULL default '0');
+INSERT INTO t3 VALUES ('W','a'),('A','c'),('J','b');
+CREATE TABLE t2 (a varchar(20),b int NOT NULL default '0');
+INSERT INTO t2 VALUES ('W','1'),('A','3'),('J','2');
+CREATE TABLE t1 (a varchar(20),b date NOT NULL default '0000-00-00');
+INSERT INTO t1 VALUES ('W','1732-02-22'),('A','1735-10-30'),('J','1743-04-13');
+SELECT * FROM t1 WHERE b = (SELECT MIN(b) FROM t1);
+a	b
+W	1732-02-22
+SELECT * FROM t2 WHERE b = (SELECT MIN(b) FROM t2);
+a	b
+W	1
+SELECT * FROM t3 WHERE b = (SELECT MIN(b) FROM t3);
+a	b
+W	a
+CREATE TABLE `t8` (
+`pseudo` varchar(35) character set latin1 NOT NULL default '',
+`email` varchar(60) character set latin1 NOT NULL default '',
+PRIMARY KEY  (`pseudo`),
+UNIQUE KEY `email` (`email`)
+) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC;
+INSERT INTO t8 (pseudo,email) VALUES ('joce','test');
+INSERT INTO t8 (pseudo,email) VALUES ('joce1','test1');
+INSERT INTO t8 (pseudo,email) VALUES ('2joce1','2test1');
+EXPLAIN EXTENDED SELECT pseudo,(SELECT email FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce')) FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t8	const	PRIMARY	PRIMARY	37	const	1	100.00	Using index
+4	SUBQUERY	t8	const	PRIMARY	PRIMARY	37	const	1	100.00	Using index
+2	SUBQUERY	t8	const	PRIMARY	PRIMARY	37	const	1	100.00	
+3	SUBQUERY	t8	const	PRIMARY	PRIMARY	37	const	1	100.00	Using index
+Warnings:
+Note	1003	select 'joce' AS `pseudo`,(select 'test' from `test`.`t8` where 1) AS `(SELECT email FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce'))` from `test`.`t8` where 1
+SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo,email FROM
+t8 WHERE pseudo='joce');
+ERROR 21000: Operand should contain 1 column(s)
+SELECT pseudo FROM t8 WHERE pseudo=(SELECT * FROM t8 WHERE
+pseudo='joce');
+ERROR 21000: Operand should contain 1 column(s)
+SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce');
+pseudo
+joce
+SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo LIKE '%joce%');
+ERROR 21000: Subquery returns more than 1 row
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8;
+CREATE TABLE `t1` (
+`topic` mediumint(8) unsigned NOT NULL default '0',
+`date` date NOT NULL default '0000-00-00',
+`pseudo` varchar(35) character set latin1 NOT NULL default '',
+PRIMARY KEY  (`pseudo`,`date`,`topic`),
+KEY `topic` (`topic`)
+) ENGINE=MyISAM ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 (topic,date,pseudo) VALUES
+('43506','2002-10-02','joce'),('40143','2002-08-03','joce');
+EXPLAIN EXTENDED SELECT DISTINCT date FROM t1 WHERE date='2002-08-03';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	index	NULL	PRIMARY	43	NULL	2	100.00	Using where; Using index
+Warnings:
+Note	1003	select distinct `test`.`t1`.`date` AS `date` from `test`.`t1` where (`test`.`t1`.`date` = '2002-08-03')
+EXPLAIN EXTENDED SELECT (SELECT DISTINCT date FROM t1 WHERE date='2002-08-03');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+2	SUBQUERY	t1	index	NULL	PRIMARY	43	NULL	2	100.00	Using where; Using index
+Warnings:
+Note	1003	select (select distinct `test`.`t1`.`date` from `test`.`t1` where (`test`.`t1`.`date` = '2002-08-03')) AS `(SELECT DISTINCT date FROM t1 WHERE date='2002-08-03')`
+SELECT DISTINCT date FROM t1 WHERE date='2002-08-03';
+date
+2002-08-03
+SELECT (SELECT DISTINCT date FROM t1 WHERE date='2002-08-03');
+(SELECT DISTINCT date FROM t1 WHERE date='2002-08-03')
+2002-08-03
+SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION SELECT 1) UNION ALL SELECT 1;
+1
+1
+1
+1
+SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION ALL SELECT 1) UNION SELECT 1;
+ERROR 21000: Subquery returns more than 1 row
+EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION SELECT 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	topic	3	NULL	2	100.00	Using index
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
+Warnings:
+Note	1003	select 1 AS `1` from `test`.`t1` where 1
+drop table t1;
+CREATE TABLE `t1` (
+`numeropost` mediumint(8) unsigned NOT NULL auto_increment,
+`maxnumrep` int(10) unsigned NOT NULL default '0',
+PRIMARY KEY  (`numeropost`),
+UNIQUE KEY `maxnumrep` (`maxnumrep`)
+) ENGINE=MyISAM ROW_FORMAT=FIXED;
+INSERT INTO t1 (numeropost,maxnumrep) VALUES (40143,1),(43506,2);
+CREATE TABLE `t2` (
+`mot` varchar(30) NOT NULL default '',
+`topic` mediumint(8) unsigned NOT NULL default '0',
+`date` date NOT NULL default '0000-00-00',
+`pseudo` varchar(35) NOT NULL default '',
+PRIMARY KEY  (`mot`,`pseudo`,`date`,`topic`)
+) ENGINE=MyISAM ROW_FORMAT=DYNAMIC;
+INSERT INTO t2 (mot,topic,date,pseudo) VALUES ('joce','40143','2002-10-22','joce'), ('joce','43506','2002-10-22','joce');
+select numeropost as a FROM t1 GROUP BY (SELECT 1 FROM t1 HAVING a=1);
+a
+40143
+SELECT numeropost,maxnumrep FROM t1 WHERE exists (SELECT 1 FROM t2 WHERE (mot='joce') AND date >= '2002-10-21' AND t1.numeropost = t2.topic) ORDER BY maxnumrep DESC LIMIT 0, 20;
+numeropost	maxnumrep
+43506	2
+40143	1
+SELECT (SELECT 1) as a FROM (SELECT 1 FROM t1 HAVING a=1) b;
+ERROR 42S22: Unknown column 'a' in 'having clause'
+SELECT 1 IN (SELECT 1 FROM t2 HAVING a);
+ERROR 42S22: Unknown column 'a' in 'having clause'
+SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic);
+mot	topic	date	pseudo
+joce	40143	2002-10-22	joce
+joce	43506	2002-10-22	joce
+SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100);
+mot	topic	date	pseudo
+SELECT * from t2 where topic IN (SELECT SUM(topic) FROM t1);
+mot	topic	date	pseudo
+SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic);
+mot	topic	date	pseudo
+joce	40143	2002-10-22	joce
+joce	43506	2002-10-22	joce
+SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100);
+mot	topic	date	pseudo
+SELECT * from t2 where topic = any (SELECT SUM(topic) FROM t1);
+mot	topic	date	pseudo
+SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic);
+mot	topic	date	pseudo
+SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100);
+mot	topic	date	pseudo
+joce	40143	2002-10-22	joce
+joce	43506	2002-10-22	joce
+SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) from t2;
+mot	topic	date	pseudo	topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100)
+joce	40143	2002-10-22	joce	1
+joce	43506	2002-10-22	joce	1
+SELECT * from t2 where topic = all (SELECT SUM(topic) FROM t2);
+mot	topic	date	pseudo
+SELECT * from t2 where topic <> any (SELECT SUM(topic) FROM t2);
+mot	topic	date	pseudo
+joce	40143	2002-10-22	joce
+joce	43506	2002-10-22	joce
+SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
+mot	topic	date	pseudo
+joce	40143	2002-10-22	joce
+SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
+mot	topic	date	pseudo
+joce	40143	2002-10-22	joce
+SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
+mot	topic	date	pseudo
+joce	40143	2002-10-22	joce
+SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) from t2;
+mot	topic	date	pseudo	topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000)
+joce	40143	2002-10-22	joce	1
+joce	43506	2002-10-22	joce	0
+drop table t1,t2;
+CREATE TABLE `t1` (
+`numeropost` mediumint(8) unsigned NOT NULL auto_increment,
+`maxnumrep` int(10) unsigned NOT NULL default '0',
+PRIMARY KEY  (`numeropost`),
+UNIQUE KEY `maxnumrep` (`maxnumrep`)
+) ENGINE=MyISAM ROW_FORMAT=FIXED;
+INSERT INTO t1 (numeropost,maxnumrep) VALUES (1,0),(2,1);
+select numeropost as a FROM t1 GROUP BY (SELECT 1 FROM t1 HAVING a=1);
+ERROR 21000: Subquery returns more than 1 row
+select numeropost as a FROM t1 ORDER BY (SELECT 1 FROM t1 HAVING a=1);
+ERROR 21000: Subquery returns more than 1 row
+show warnings;
+Level	Code	Message
+Error	1242	Subquery returns more than 1 row
+Error	1028	Sort aborted: Subquery returns more than 1 row
+drop table t1;
+create table t1 (a int);
+insert into t1 values (1),(2),(3);
+(select * from t1) union (select * from t1) order by (select a from t1 limit 1);
+a
+1
+2
+3
+drop table t1;
+CREATE TABLE t1 (field char(1) NOT NULL DEFAULT 'b');
+INSERT INTO t1 VALUES ();
+SELECT field FROM t1 WHERE 1=(SELECT 1 UNION ALL SELECT 1 FROM (SELECT 1) a HAVING field='b');
+ERROR 21000: Subquery returns more than 1 row
+drop table t1;
+CREATE TABLE `t1` (
+`numeropost` mediumint(8) unsigned NOT NULL default '0',
+`numreponse` int(10) unsigned NOT NULL auto_increment,
+`pseudo` varchar(35) NOT NULL default '',
+PRIMARY KEY  (`numeropost`,`numreponse`),
+UNIQUE KEY `numreponse` (`numreponse`),
+KEY `pseudo` (`pseudo`,`numeropost`)
+) ENGINE=MyISAM;
+SELECT (SELECT numeropost FROM t1 HAVING numreponse=a),numreponse FROM (SELECT * FROM t1) as a;
+ERROR 42S22: Reference 'numreponse' not supported (forward reference in item list)
+SELECT numreponse, (SELECT numeropost FROM t1 HAVING numreponse=a) FROM (SELECT * FROM t1) as a;
+ERROR 42S22: Unknown column 'a' in 'having clause'
+SELECT numreponse, (SELECT numeropost FROM t1 HAVING numreponse=1) FROM (SELECT * FROM t1) as a;
+numreponse	(SELECT numeropost FROM t1 HAVING numreponse=1)
+INSERT INTO t1 (numeropost,numreponse,pseudo) VALUES (1,1,'joce'),(1,2,'joce'),(1,3,'test');
+EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT 1 FROM t1 WHERE numeropost='1');
+ERROR 21000: Subquery returns more than 1 row
+SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT 1 FROM t1 WHERE numeropost='1');
+ERROR 21000: Subquery returns more than 1 row
+EXPLAIN EXTENDED SELECT MAX(numreponse) FROM t1 WHERE numeropost='1';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+Warnings:
+Note	1003	select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where (`test`.`t1`.`numeropost` = '1')
+EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM t1 WHERE numeropost='1');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using index
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+Warnings:
+Note	1003	select 3 AS `numreponse` from `test`.`t1` where ((1 = '1'))
+drop table t1;
+CREATE TABLE t1 (a int(1));
+INSERT INTO t1 VALUES (1);
+SELECT 1 FROM (SELECT a FROM t1) b HAVING (SELECT b.a)=1;
+1
+1
+drop table t1;
+create table t1 (a int NOT NULL, b int, primary key (a));
+create table t2 (a int NOT NULL, b int, primary key (a));
+insert into t1 values (0, 10),(1, 11),(2, 12);
+insert into t2 values (1, 21),(2, 22),(3, 23);
+select * from t1;
+a	b
+0	10
+1	11
+2	12
+update t1 set b= (select b from t1);
+ERROR HY000: You can't specify target table 't1' for update in FROM clause
+update t1 set b= (select b from t2);
+ERROR 21000: Subquery returns more than 1 row
+update t1 set b= (select b from t2 where t1.a = t2.a);
+select * from t1;
+a	b
+0	NULL
+1	21
+2	22
+drop table t1, t2;
+create table t1 (a int NOT NULL, b int, primary key (a));
+create table t2 (a int NOT NULL, b int, primary key (a));
+insert into t1 values (0, 10),(1, 11),(2, 12);
+insert into t2 values (1, 21),(2, 12),(3, 23);
+select * from t1;
+a	b
+0	10
+1	11
+2	12
+select * from t1 where b = (select b from t2 where t1.a = t2.a);
+a	b
+2	12
+delete from t1 where b in (select b from t1);
+ERROR HY000: You can't specify target table 't1' for update in FROM clause
+delete from t1 where b = (select b from t2);
+ERROR 21000: Subquery returns more than 1 row
+delete from t1 where b = (select b from t2 where t1.a = t2.a);
+select * from t1;
+a	b
+0	10
+1	11
+drop table t1, t2;
+create table t11 (a int NOT NULL, b int, primary key (a));
+create table t12 (a int NOT NULL, b int, primary key (a));
+create table t2 (a int NOT NULL, b int, primary key (a));
+insert into t11 values (0, 10),(1, 11),(2, 12);
+insert into t12 values (33, 10),(22, 11),(2, 12);
+insert into t2 values (1, 21),(2, 12),(3, 23);
+select * from t11;
+a	b
+0	10
+1	11
+2	12
+select * from t12;
+a	b
+33	10
+22	11
+2	12
+delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t12 where t11.a = t12.a);
+ERROR HY000: You can't specify target table 't12' for update in FROM clause
+delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t2);
+ERROR 21000: Subquery returns more than 1 row
+delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t2 where t11.a = t2.a);
+select * from t11;
+a	b
+0	10
+1	11
+select * from t12;
+a	b
+33	10
+22	11
+drop table t11, t12, t2;
+CREATE TABLE t1 (x int) ENGINE=MyISAM;
+create table t2 (a int) ENGINE=MyISAM;
+create table t3 (b int);
+insert into t2 values (1);
+insert into t3 values (1),(2);
+INSERT INTO t1 (x) VALUES ((SELECT x FROM t1));
+ERROR HY000: You can't specify target table 't1' for update in FROM clause
+INSERT INTO t1 (x) VALUES ((SELECT b FROM t3));
+ERROR 21000: Subquery returns more than 1 row
+INSERT INTO t1 (x) VALUES ((SELECT a FROM t2));
+select * from t1;
+x
+1
+insert into t2 values (1);
+INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(a) FROM t2));
+select * from t1;
+x
+1
+2
+INSERT INTO t1 (x) select (SELECT SUM(a)+1 FROM t2) FROM t2;
+select * from t1;
+x
+1
+2
+3
+3
+INSERT INTO t1 (x) select (SELECT SUM(x)+2 FROM t1) FROM t2;
+select * from t1;
+x
+1
+2
+3
+3
+11
+11
+INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(x) FROM t2));
+ERROR 42S22: Unknown column 'x' in 'field list'
+INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(a) FROM t2));
+select * from t1;
+x
+1
+2
+3
+3
+11
+11
+2
+drop table t1, t2, t3;
+CREATE TABLE t1 (x int not null, y int, primary key (x)) ENGINE=MyISAM;
+create table t2 (a int);
+create table t3 (a int);
+insert into t2 values (1);
+insert into t3 values (1),(2);
+select * from t1;
+x	y
+replace into t1 (x, y) VALUES ((SELECT x FROM t1), (SELECT a+1 FROM t2));
+ERROR HY000: You can't specify target table 't1' for update in FROM clause
+replace into t1 (x, y) VALUES ((SELECT a FROM t3), (SELECT a+1 FROM t2));
+ERROR 21000: Subquery returns more than 1 row
+replace into t1 (x, y) VALUES ((SELECT a FROM t2), (SELECT a+1 FROM t2));
+select * from t1;
+x	y
+1	2
+replace into t1 (x, y) VALUES ((SELECT a FROM t2), (SELECT a+2 FROM t2));
+select * from t1;
+x	y
+1	3
+replace DELAYED into t1 (x, y) VALUES ((SELECT a+3 FROM t2), (SELECT a FROM t2));
+select * from t1;
+x	y
+1	3
+4	1
+replace DELAYED into t1 (x, y) VALUES ((SELECT a+3 FROM t2), (SELECT a+1 FROM t2));
+select * from t1;
+x	y
+1	3
+4	2
+replace LOW_PRIORITY into t1 (x, y) VALUES ((SELECT a+1 FROM t2), (SELECT a FROM t2));
+select * from t1;
+x	y
+1	3
+4	2
+2	1
+drop table t1, t2, t3;
+SELECT * FROM (SELECT 1) b WHERE 1 IN (SELECT *);
+ERROR HY000: No tables used
+CREATE TABLE t2 (id int(11) default NULL, KEY id (id)) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t2 VALUES (1),(2);
+SELECT * FROM t2 WHERE id IN (SELECT 1);
+id
+1
+EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ref	id	id	5	const	1	100.00	Using index
+Warnings:
+Note	1249	Select 2 was reduced during optimization
+Note	1003	select `test`.`t2`.`id` AS `id` from `test`.`t2` where (`test`.`t2`.`id` = 1)
+SELECT * FROM t2 WHERE id IN (SELECT 1 UNION SELECT 3);
+id
+1
+SELECT * FROM t2 WHERE id IN (SELECT 1+(select 1));
+id
+2
+EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1+(select 1));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	ref	id	id	5	const	1	100.00	Using where; Using index
+Warnings:
+Note	1249	Select 3 was reduced during optimization
+Note	1249	Select 2 was reduced during optimization
+Note	1003	select `test`.`t2`.`id` AS `id` from `test`.`t2` where (`test`.`t2`.`id` = <cache>((1 + 1)))
+EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1 UNION SELECT 3);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	index	NULL	id	5	NULL	2	100.00	Using where; Using index
+2	DEPENDENT SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+3	DEPENDENT UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
+Warnings:
+Note	1003	select `test`.`t2`.`id` AS `id` from `test`.`t2` where <expr_cache><`test`.`t2`.`id`>(<in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3)))))
+SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 3);
+id
+SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 2);
+id
+2
+INSERT INTO t2 VALUES ((SELECT * FROM t2));
+ERROR HY000: You can't specify target table 't2' for update in FROM clause
+INSERT INTO t2 VALUES ((SELECT id FROM t2));
+ERROR HY000: You can't specify target table 't2' for update in FROM clause
+SELECT * FROM t2;
+id
+1
+2
+CREATE TABLE t1 (id int(11) default NULL, KEY id (id)) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t1 values (1),(1);
+UPDATE t2 SET id=(SELECT * FROM t1);
+ERROR 21000: Subquery returns more than 1 row
+drop table t2, t1;
+create table t1 (a int);
+insert into t1 values (1),(2),(3);
+select 1 IN (SELECT * from t1);
+1 IN (SELECT * from t1)
+1
+select 10 IN (SELECT * from t1);
+10 IN (SELECT * from t1)
+0
+select NULL IN (SELECT * from t1);
+NULL IN (SELECT * from t1)
+NULL
+update t1 set a=NULL where a=2;
+select 1 IN (SELECT * from t1);
+1 IN (SELECT * from t1)
+1
+select 3 IN (SELECT * from t1);
+3 IN (SELECT * from t1)
+1
+select 10 IN (SELECT * from t1);
+10 IN (SELECT * from t1)
+NULL
+select 1 > ALL (SELECT * from t1);
+1 > ALL (SELECT * from t1)
+0
+select 10 > ALL (SELECT * from t1);
+10 > ALL (SELECT * from t1)
+NULL
+select 1 > ANY (SELECT * from t1);
+1 > ANY (SELECT * from t1)
+NULL
+select 10 > ANY (SELECT * from t1);
+10 > ANY (SELECT * from t1)
+1
+drop table t1;
+create table t1 (a varchar(20));
+insert into t1 values ('A'),('BC'),('DEF');
+select 'A' IN (SELECT * from t1);
+'A' IN (SELECT * from t1)
+1
+select 'XYZS' IN (SELECT * from t1);
+'XYZS' IN (SELECT * from t1)
+0
+select NULL IN (SELECT * from t1);
+NULL IN (SELECT * from t1)
+NULL
+update t1 set a=NULL where a='BC';
+select 'A' IN (SELECT * from t1);
+'A' IN (SELECT * from t1)
+1
+select 'DEF' IN (SELECT * from t1);
+'DEF' IN (SELECT * from t1)
+1
+select 'XYZS' IN (SELECT * from t1);
+'XYZS' IN (SELECT * from t1)
+NULL
+select 'A' > ALL (SELECT * from t1);
+'A' > ALL (SELECT * from t1)
+0
+select 'XYZS' > ALL (SELECT * from t1);
+'XYZS' > ALL (SELECT * from t1)
+NULL
+select 'A' > ANY (SELECT * from t1);
+'A' > ANY (SELECT * from t1)
+NULL
+select 'XYZS' > ANY (SELECT * from t1);
+'XYZS' > ANY (SELECT * from t1)
+1
+drop table t1;
+create table t1 (a float);
+insert into t1 values (1.5),(2.5),(3.5);
+select 1.5 IN (SELECT * from t1);
+1.5 IN (SELECT * from t1)
+1
+select 10.5 IN (SELECT * from t1);
+10.5 IN (SELECT * from t1)
+0
+select NULL IN (SELECT * from t1);
+NULL IN (SELECT * from t1)
+NULL
+update t1 set a=NULL where a=2.5;
+select 1.5 IN (SELECT * from t1);
+1.5 IN (SELECT * from t1)
+1
+select 3.5 IN (SELECT * from t1);
+3.5 IN (SELECT * from t1)
+1
+select 10.5 IN (SELECT * from t1);
+10.5 IN (SELECT * from t1)
+NULL
+select 1.5 > ALL (SELECT * from t1);
+1.5 > ALL (SELECT * from t1)
+0
+select 10.5 > ALL (SELECT * from t1);
+10.5 > ALL (SELECT * from t1)
+NULL
+select 1.5 > ANY (SELECT * from t1);
+1.5 > ANY (SELECT * from t1)
+NULL
+select 10.5 > ANY (SELECT * from t1);
+10.5 > ANY (SELECT * from t1)
+1
+explain extended select (select a+1) from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1249	Select 2 was reduced during optimization
+Note	1003	select (`test`.`t1`.`a` + 1) AS `(select a+1)` from `test`.`t1`
+select (select a+1) from t1;
+(select a+1)
+2.5
+NULL
+4.5
+drop table t1;
+CREATE TABLE t1 (a int(11) NOT NULL default '0', PRIMARY KEY  (a));
+CREATE TABLE t2 (a int(11) default '0', INDEX (a));
+INSERT INTO t1 VALUES (1),(2),(3),(4);
+INSERT INTO t2 VALUES (1),(2),(3);
+SELECT t1.a, t1.a in (select t2.a from t2) FROM t1;
+a	t1.a in (select t2.a from t2)
+1	1
+2	1
+3	1
+4	0
+explain extended SELECT t1.a, t1.a in (select t2.a from t2) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	PRIMARY	4	NULL	4	100.00	Using index
+2	SUBQUERY	t2	index_subquery	a	a	5	func	2	100.00	Using index
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`))))) AS `t1.a in (select t2.a from t2)` from `test`.`t1`
+CREATE TABLE t3 (a int(11) default '0');
+INSERT INTO t3 VALUES (1),(2),(3);
+SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1;
+a	t1.a in (select t2.a from t2,t3 where t3.a=t2.a)
+1	1
+2	1
+3	1
+4	0
+explain extended SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	PRIMARY	4	NULL	4	100.00	Using index
+2	DEPENDENT SUBQUERY	t2	ref_or_null	a	a	5	func	2	100.00	Using where; Using index
+2	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1`
+drop table t1,t2,t3;
+# check correct NULL Processing for normal IN/ALL/ANY
+# and 2 ways of max/min optimization
+create table t1 (a int);
+insert into t1 values (1), (100), (NULL), (1000);
+create table t2 (a int not null);
+# subselect returns empty set (for NULL and non-NULL left part)
+select a, a in (select * from t2) from t1;
+a	a in (select * from t2)
+1	0
+100	0
+NULL	0
+1000	0
+select a, a > any (select * from t2) from t1;
+a	a > any (select * from t2)
+1	0
+100	0
+NULL	0
+1000	0
+select a, a > all (select * from t2) from t1;
+a	a > all (select * from t2)
+1	1
+100	1
+NULL	1
+1000	1
+select a from t1 where a in (select * from t2);
+a
+select a from t1 where a > any (select * from t2);
+a
+select a from t1 where a > all (select * from t2);
+a
+1
+100
+NULL
+1000
+select a from t1 where a in (select * from t2 group by a);
+a
+select a from t1 where a > any (select * from t2 group by a);
+a
+select a from t1 where a > all (select * from t2 group by a);
+a
+1
+100
+NULL
+1000
+insert into t2 values (1),(200);
+# sebselect returns non-empty set without NULLs
+select a, a in (select * from t2) from t1;
+a	a in (select * from t2)
+1	1
+100	0
+NULL	NULL
+1000	0
+select a, a > any (select * from t2) from t1;
+a	a > any (select * from t2)
+1	0
+100	1
+NULL	NULL
+1000	1
+select a, a > all (select * from t2) from t1;
+a	a > all (select * from t2)
+1	0
+100	0
+NULL	NULL
+1000	1
+select a from t1 where a in (select * from t2);
+a
+1
+select a from t1 where a > any (select * from t2);
+a
+100
+1000
+select a from t1 where a > all (select * from t2);
+a
+1000
+select a from t1 where a in (select * from t2 group by a);
+a
+1
+select a from t1 where a > any (select * from t2 group by a);
+a
+100
+1000
+select a from t1 where a > all (select * from t2 group by a);
+a
+1000
+drop table t2;
+create table t2 (a int);
+insert into t2 values (1),(NULL),(200);
+# sebselect returns non-empty set with NULLs
+select a, a in (select * from t2) from t1;
+a	a in (select * from t2)
+1	1
+100	NULL
+NULL	NULL
+1000	NULL
+select a, a > any (select * from t2) from t1;
+a	a > any (select * from t2)
+1	NULL
+100	1
+NULL	NULL
+1000	1
+select a, a > all (select * from t2) from t1;
+a	a > all (select * from t2)
+1	0
+100	0
+NULL	NULL
+1000	NULL
+select a from t1 where a in (select * from t2);
+a
+1
+select a from t1 where a > any (select * from t2);
+a
+100
+1000
+select a from t1 where a > all (select * from t2);
+a
+select a from t1 where a in (select * from t2 group by a);
+a
+1
+select a from t1 where a > any (select * from t2 group by a);
+a
+100
+1000
+select a from t1 where a > all (select * from t2 group by a);
+a
+drop table t1, t2;
+create table t1 (a float);
+select 10.5 IN (SELECT * from t1 LIMIT 1);
+ERROR 42000: This version of MariaDB doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'
+select 10.5 IN (SELECT * from t1 LIMIT 1 UNION SELECT 1.5);
+ERROR 42000: This version of MariaDB doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'
+drop table t1;
+create table t1 (a int, b int, c varchar(10));
+create table t2 (a int);
+insert into t1 values (1,2,'a'),(2,3,'b'),(3,4,'c');
+insert into t2 values (1),(2),(NULL);
+select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,2,'a'),(select c from t1 where a=t2.a)  from t2;
+a	(select a,b,c from t1 where t1.a=t2.a) = ROW(a,2,'a')	(select c from t1 where a=t2.a)
+1	1	a
+2	0	b
+NULL	NULL	NULL
+select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,3,'b'),(select c from t1 where a=t2.a) from t2;
+a	(select a,b,c from t1 where t1.a=t2.a) = ROW(a,3,'b')	(select c from t1 where a=t2.a)
+1	0	a
+2	1	b
+NULL	NULL	NULL
+select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,4,'c'),(select c from t1 where a=t2.a) from t2;
+a	(select a,b,c from t1 where t1.a=t2.a) = ROW(a,4,'c')	(select c from t1 where a=t2.a)
+1	0	a
+2	0	b
+NULL	NULL	NULL
+drop table t1,t2;
+create table t1 (a int, b real, c varchar(10));
+insert into t1 values (1, 1, 'a'), (2,2,'b'), (NULL, 2, 'b');
+select ROW(1, 1, 'a') IN (select a,b,c from t1);
+ROW(1, 1, 'a') IN (select a,b,c from t1)
+1
+select ROW(1, 2, 'a') IN (select a,b,c from t1);
+ROW(1, 2, 'a') IN (select a,b,c from t1)
+0
+select ROW(1, 1, 'a') IN (select b,a,c from t1);
+ROW(1, 1, 'a') IN (select b,a,c from t1)
+1
+select ROW(1, 1, 'a') IN (select a,b,c from t1 where a is not null);
+ROW(1, 1, 'a') IN (select a,b,c from t1 where a is not null)
+1
+select ROW(1, 2, 'a') IN (select a,b,c from t1 where a is not null);
+ROW(1, 2, 'a') IN (select a,b,c from t1 where a is not null)
+0
+select ROW(1, 1, 'a') IN (select b,a,c from t1 where a is not null);
+ROW(1, 1, 'a') IN (select b,a,c from t1 where a is not null)
+1
+select ROW(1, 1, 'a') IN (select a,b,c from t1 where c='b' or c='a');
+ROW(1, 1, 'a') IN (select a,b,c from t1 where c='b' or c='a')
+1
+select ROW(1, 2, 'a') IN (select a,b,c from t1 where c='b' or c='a');
+ROW(1, 2, 'a') IN (select a,b,c from t1 where c='b' or c='a')
+0
+select ROW(1, 1, 'a') IN (select b,a,c from t1 where c='b' or c='a');
+ROW(1, 1, 'a') IN (select b,a,c from t1 where c='b' or c='a')
+1
+select ROW(1, 1, 'a') IN (select b,a,c from t1 limit 2);
+ERROR 42000: This version of MariaDB doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'
+drop table t1;
+create table t1 (a int);
+insert into t1 values (1);
+do @a:=(SELECT a from t1);
+select @a;
+@a
+1
+set @a:=2;
+set @a:=(SELECT a from t1);
+select @a;
+@a
+1
+drop table t1;
+do (SELECT a from t1);
+ERROR 42S02: Table 'test.t1' doesn't exist
+set @a:=(SELECT a from t1);
+ERROR 42S02: Table 'test.t1' doesn't exist
+CREATE TABLE t1 (a int, KEY(a));
+HANDLER t1 OPEN;
+HANDLER t1 READ a=((SELECT 1));
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1
+HANDLER t1 CLOSE;
+drop table t1;
+create table t1 (a int);
+create table t2 (b int);
+insert into t1 values (1),(2);
+insert into t2 values (1);
+select a from t1 where a in (select a from t1 where a in (select b from t2));
+a
+1
+drop table t1, t2;
+create table t1 (a int, b int);
+create table t2 like t1;
+insert into t1 values (1,2),(1,3),(1,4),(1,5);
+insert into t2 values (1,2),(1,3);
+select * from t1 where row(a,b) in (select a,b from t2);
+a	b
+1	2
+1	3
+drop table t1, t2;
+CREATE TABLE `t1` (`i` int(11) NOT NULL default '0',PRIMARY KEY  (`i`)) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t1 VALUES (1);
+UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i));
+select * from t1;
+i
+2
+drop table t1;
+CREATE TABLE t1 (a int(1));
+EXPLAIN EXTENDED SELECT (SELECT RAND() FROM t1) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+2	UNCACHEABLE SUBQUERY	t1	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1003	select (select rand() from `test`.`t1`) AS `(SELECT RAND() FROM t1)` from `test`.`t1`
+EXPLAIN EXTENDED SELECT (SELECT ENCRYPT('test') FROM t1) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+2	UNCACHEABLE SUBQUERY	t1	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1003	select (select encrypt('test') from `test`.`t1`) AS `(SELECT ENCRYPT('test') FROM t1)` from `test`.`t1`
+EXPLAIN EXTENDED SELECT (SELECT BENCHMARK(1,1) FROM t1) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+2	UNCACHEABLE SUBQUERY	t1	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1003	select (select benchmark(1,1) from `test`.`t1`) AS `(SELECT BENCHMARK(1,1) FROM t1)` from `test`.`t1`
+drop table t1;
+CREATE TABLE `t1` (
+`mot` varchar(30) character set latin1 NOT NULL default '',
+`topic` mediumint(8) unsigned NOT NULL default '0',
+`date` date NOT NULL default '0000-00-00',
+`pseudo` varchar(35) character set latin1 NOT NULL default '',
+PRIMARY KEY  (`mot`,`pseudo`,`date`,`topic`),
+KEY `pseudo` (`pseudo`,`date`,`topic`),
+KEY `topic` (`topic`)
+) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC;
+CREATE TABLE `t2` (
+`mot` varchar(30) character set latin1 NOT NULL default '',
+`topic` mediumint(8) unsigned NOT NULL default '0',
+`date` date NOT NULL default '0000-00-00',
+`pseudo` varchar(35) character set latin1 NOT NULL default '',
+PRIMARY KEY  (`mot`,`pseudo`,`date`,`topic`),
+KEY `pseudo` (`pseudo`,`date`,`topic`),
+KEY `topic` (`topic`)
+) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC;
+CREATE TABLE `t3` (
+`numeropost` mediumint(8) unsigned NOT NULL auto_increment,
+`maxnumrep` int(10) unsigned NOT NULL default '0',
+PRIMARY KEY  (`numeropost`),
+UNIQUE KEY `maxnumrep` (`maxnumrep`)
+) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t1 VALUES ('joce','1','','joce'),('test','2','','test');
+Warnings:
+Warning	1265	Data truncated for column 'date' at row 1
+Warning	1265	Data truncated for column 'date' at row 2
+INSERT INTO t2 VALUES ('joce','1','','joce'),('test','2','','test');
+Warnings:
+Warning	1265	Data truncated for column 'date' at row 1
+Warning	1265	Data truncated for column 'date' at row 2
+INSERT INTO t3 VALUES (1,1);
+SELECT DISTINCT topic FROM t2 WHERE NOT EXISTS(SELECT * FROM t3 WHERE
+numeropost=topic);
+topic
+2
+select * from t1;
+mot	topic	date	pseudo
+joce	1	0000-00-00	joce
+test	2	0000-00-00	test
+DELETE FROM t1 WHERE topic IN (SELECT DISTINCT topic FROM t2 WHERE NOT
+EXISTS(SELECT * FROM t3 WHERE numeropost=topic));
+select * from t1;
+mot	topic	date	pseudo
+joce	1	0000-00-00	joce
+drop table t1, t2, t3;
+SELECT * FROM (SELECT 1 as a,(SELECT a)) a;
+a	(SELECT a)
+1	1
+CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT 1)) a;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(1) NOT NULL DEFAULT '0',
+  `(SELECT 1)` int(1) NOT NULL DEFAULT '0'
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+drop table t1;
+CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT a)) a;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(1) NOT NULL DEFAULT '0',
+  `(SELECT a)` int(1) NOT NULL DEFAULT '0'
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+drop table t1;
+CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT a+0)) a;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(1) NOT NULL DEFAULT '0',
+  `(SELECT a+0)` int(3) NOT NULL DEFAULT '0'
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+drop table t1;
+CREATE TABLE t1 SELECT (SELECT 1 as a UNION SELECT 1+1 limit 1,1) as a;
+select * from t1;
+a
+2
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` bigint(20) NOT NULL DEFAULT '0'
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+drop table t1;
+create table t1 (a int);
+insert into t1 values (1), (2), (3);
+explain extended select a,(select (select rand() from t1 limit 1)  from t1 limit 1)
+from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+2	UNCACHEABLE SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+3	UNCACHEABLE SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `a`,(select (select rand() from `test`.`t1` limit 1) from `test`.`t1` limit 1) AS `(select (select rand() from t1 limit 1)  from t1 limit 1)` from `test`.`t1`
+drop table t1;
+select t1.Continent, t2.Name, t2.Population from t1 LEFT JOIN t2 ON t1.Code = t2.Country  where t2.Population IN (select max(t2.Population) AS Population from t2, t1 where t2.Country = t1.Code group by Continent);
+ERROR 42S02: Table 'test.t1' doesn't exist
+CREATE TABLE t1 (
+ID int(11) NOT NULL auto_increment,
+name char(35) NOT NULL default '',
+t2 char(3) NOT NULL default '',
+District char(20) NOT NULL default '',
+Population int(11) NOT NULL default '0',
+PRIMARY KEY  (ID)
+) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (130,'Sydney','AUS','New South Wales',3276207);
+INSERT INTO t1 VALUES (131,'Melbourne','AUS','Victoria',2865329);
+INSERT INTO t1 VALUES (132,'Brisbane','AUS','Queensland',1291117);
+CREATE TABLE t2 (
+Code char(3) NOT NULL default '',
+Name char(52) NOT NULL default '',
+Continent enum('Asia','Europe','North America','Africa','Oceania','Antarctica','South America') NOT NULL default 'Asia',
+Region char(26) NOT NULL default '',
+SurfaceArea float(10,2) NOT NULL default '0.00',
+IndepYear smallint(6) default NULL,
+Population int(11) NOT NULL default '0',
+LifeExpectancy float(3,1) default NULL,
+GNP float(10,2) default NULL,
+GNPOld float(10,2) default NULL,
+LocalName char(45) NOT NULL default '',
+GovernmentForm char(45) NOT NULL default '',
+HeadOfState char(60) default NULL,
+Capital int(11) default NULL,
+Code2 char(2) NOT NULL default '',
+PRIMARY KEY  (Code)
+) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('AUS','Australia','Oceania','Australia and New Zealand',7741220.00,1901,18886000,79.8,351182.00,392911.00,'Australia','Constitutional Monarchy, Federation','Elisabeth II',135,'AU');
+INSERT INTO t2 VALUES ('AZE','Azerbaijan','Asia','Middle East',86600.00,1991,7734000,62.9,4127.00,4100.00,'Azärbaycan','Federal Republic','Heydär Äliyev',144,'AZ');
+select t2.Continent, t1.Name, t1.Population from t2 LEFT JOIN t1 ON t2.Code = t1.t2  where t1.Population IN (select max(t1.Population) AS Population from t1, t2 where t1.t2 = t2.Code group by Continent);
+Continent	Name	Population
+Oceania	Sydney	3276207
+drop table t1, t2;
+CREATE TABLE `t1` (
+`id` mediumint(8) unsigned NOT NULL auto_increment,
+`pseudo` varchar(35) character set latin1 NOT NULL default '',
+PRIMARY KEY  (`id`),
+UNIQUE KEY `pseudo` (`pseudo`)
+) ENGINE=MyISAM PACK_KEYS=1 ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 (pseudo) VALUES ('test');
+SELECT 0 IN (SELECT 1 FROM t1 a);
+0 IN (SELECT 1 FROM t1 a)
+0
+EXPLAIN EXTENDED SELECT 0 IN (SELECT 1 FROM t1 a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select <in_optimizer>(0,<exists>(select 1 from dual where (0 = 1))) AS `0 IN (SELECT 1 FROM t1 a)`
+INSERT INTO t1 (pseudo) VALUES ('test1');
+SELECT 0 IN (SELECT 1 FROM t1 a);
+0 IN (SELECT 1 FROM t1 a)
+0
+EXPLAIN EXTENDED SELECT 0 IN (SELECT 1 FROM t1 a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+Warnings:
+Note	1003	select <in_optimizer>(0,<exists>(select 1 from `test`.`t1` `a` where (0 = 1))) AS `0 IN (SELECT 1 FROM t1 a)`
+drop table t1;
+CREATE TABLE `t1` (
+`i` int(11) NOT NULL default '0',
+PRIMARY KEY  (`i`)
+) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t1 VALUES (1);
+UPDATE t1 SET i=i+(SELECT MAX(i) FROM (SELECT 1) t) WHERE i=(SELECT MAX(i));
+UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i));
+UPDATE t1 SET t.i=i+(SELECT MAX(i) FROM (SELECT 1) t);
+ERROR 42S22: Unknown column 't.i' in 'field list'
+select * from t1;
+i
+3
+drop table t1;
+CREATE TABLE t1 (
+id int(11) default NULL
+) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t1 VALUES (1),(1),(2),(2),(1),(3);
+CREATE TABLE t2 (
+id int(11) default NULL,
+name varchar(15) default NULL
+) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t2 VALUES (4,'vita'), (1,'vita'), (2,'vita'), (1,'vita');
+update t1, t2 set t2.name='lenka' where t2.id in (select id from t1);
+select * from t2;
+id	name
+4	vita
+1	lenka
+2	lenka
+1	lenka
+drop table t1,t2;
+create table t1 (a int, unique index indexa (a));
+insert into t1 values (-1), (-4), (-2), (NULL);
+select -10 IN (select a from t1 FORCE INDEX (indexa));
+-10 IN (select a from t1 FORCE INDEX (indexa))
+NULL
+drop table t1;
+create table t1 (id int not null auto_increment primary key, salary int, key(salary));
+insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
+explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ref	salary	salary	5	const	1	100.00	Using where
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+Warnings:
+Note	1003	select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
+drop table t1;
+CREATE TABLE t1 (
+ID int(10) unsigned NOT NULL auto_increment,
+SUB_ID int(3) unsigned NOT NULL default '0',
+REF_ID int(10) unsigned default NULL,
+REF_SUB int(3) unsigned default '0',
+PRIMARY KEY (ID,SUB_ID),
+UNIQUE KEY t1_PK (ID,SUB_ID),
+KEY t1_FK (REF_ID,REF_SUB),
+KEY t1_REFID (REF_ID)
+) ENGINE=MyISAM CHARSET=cp1251;
+INSERT INTO t1 VALUES (1,0,NULL,NULL),(2,0,NULL,NULL);
+SELECT DISTINCT REF_ID FROM t1 WHERE ID= (SELECT DISTINCT REF_ID FROM t1 WHERE ID=2);
+REF_ID
+DROP TABLE t1;
+create table t1 (a int, b int);
+create table t2 (a int, b int);
+insert into t1 values (1,0), (2,0), (3,0);
+insert into t2 values (1,1), (2,1), (3,1), (2,2);
+update ignore t1 set b=(select b from t2 where t1.a=t2.a);
+Warnings:
+Warning	1242	Subquery returns more than 1 row
+select * from t1;
+a	b
+1	1
+2	NULL
+3	1
+drop table t1, t2;
+CREATE TABLE `t1` (
+`id` mediumint(8) unsigned NOT NULL auto_increment,
+`pseudo` varchar(35) NOT NULL default '',
+`email` varchar(60) NOT NULL default '',
+PRIMARY KEY  (`id`),
+UNIQUE KEY `email` (`email`),
+UNIQUE KEY `pseudo` (`pseudo`)
+) ENGINE=MyISAM CHARSET=latin1 PACK_KEYS=1 ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 (id,pseudo,email) VALUES (1,'test','test'),(2,'test1','test1');
+SELECT pseudo as a, pseudo as b FROM t1 GROUP BY (SELECT a) ORDER BY (SELECT id*1);
+a	b
+test	test
+test1	test1
+drop table if exists t1;
+(SELECT 1 as a) UNION (SELECT 1) ORDER BY (SELECT a+0);
+a
+1
+create table t1 (a int not null, b int, primary key (a));
+create table t2 (a int not null, primary key (a));
+create table t3 (a int not null, b int, primary key (a));
+insert into t1 values (1,10), (2,20), (3,30),  (4,40);
+insert into t2 values (2), (3), (4), (5);
+insert into t3 values (10,3), (20,4), (30,5);
+select * from t2 where t2.a in (select a from t1);
+a
+2
+3
+4
+explain extended select * from t2 where t2.a in (select a from t1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
+1	PRIMARY	t1	index	PRIMARY	PRIMARY	4	NULL	4	75.00	Using where; Using index; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)
+select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
+a
+2
+4
+explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	75.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30))
+select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
+a
+2
+3
+explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	75.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (`test`.`t1`.`a` = `test`.`t2`.`a`))
+drop table t1, t2, t3;
+create table t1 (a int, b int, index a (a,b));
+create table t2 (a int, index a (a));
+create table t3 (a int, b int, index a (a));
+insert into t1 values (1,10), (2,20), (3,30), (4,40);
+create table t0(a int);
+insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+insert into t1
+select rand()*100000+200,rand()*100000 from t0 A, t0 B, t0 C, t0 D;
+insert into t2 values (2), (3), (4), (5);
+insert into t3 values (10,3), (20,4), (30,5);
+select * from t2 where t2.a in (select a from t1);
+a
+2
+3
+4
+explain extended select * from t2 where t2.a in (select a from t1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	index	a	a	5	NULL	4	100.00	Using where; Using index
+1	PRIMARY	t1	ref	a	a	5	test.t2.a	101	100.00	Using index; FirstMatch(t2)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where (`test`.`t1`.`a` = `test`.`t2`.`a`)
+select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
+a
+2
+4
+explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	index	a	a	5	NULL	4	100.00	Using where; Using index
+1	PRIMARY	t1	ref	a	a	5	test.t2.a	101	100.00	Using where; Using index; FirstMatch(t2)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30))
+select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
+a
+2
+3
+explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	index	a	a	5	NULL	4	100.00	Using where; Using index
+1	PRIMARY	t3	index	a	a	5	NULL	3	100.00	Using where; Using index
+1	PRIMARY	t1	ref	a	a	10	test.t2.a,test.t3.a	116	100.00	Using index; FirstMatch(t2)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`b` = `test`.`t3`.`a`) and (`test`.`t1`.`a` = `test`.`t2`.`a`))
+insert into t1 values (3,31);
+select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
+a
+2
+3
+4
+select * from t2 where t2.a in (select a from t1 where t1.b <> 30 and t1.b <> 31);
+a
+2
+4
+explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	index	a	a	5	NULL	4	100.00	Using where; Using index
+1	PRIMARY	t1	ref	a	a	5	test.t2.a	101	100.00	Using where; Using index; FirstMatch(t2)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30))
+drop table t0, t1, t2, t3;
+create table t1 (a int, b int);
+create table t2 (a int, b int);
+create table t3 (a int, b int);
+insert into t1 values (0,100),(1,2), (1,3), (2,2), (2,7), (2,-1), (3,10);
+insert into t2 values (0,0), (1,1), (2,1), (3,1), (4,1);
+insert into t3 values (3,3), (2,2), (1,1);
+select a,(select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) from t3;
+a	(select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1)
+3	1
+2	2
+1	2
+drop table t1,t2,t3;
+create table t1 (s1 int);
+create table t2 (s1 int);
+insert into t1 values (1);
+insert into t2 values (1);
+select * from t1 where exists (select s1 from t2 having max(t2.s1)=t1.s1);
+s1
+1
+drop table t1,t2;
+create table t1 (s1 int);
+create table t2 (s1 int);
+insert into t1 values (1);
+insert into t2 values (1);
+update t1 set  s1 = s1 + 1 where 1 = (select x.s1 as A from t2 WHERE t2.s1 > t1.s1 order by A);
+ERROR 42S22: Unknown column 'x.s1' in 'field list'
+DROP TABLE t1, t2;
+CREATE TABLE t1 (s1 CHAR(5) COLLATE latin1_german1_ci,
+s2 CHAR(5) COLLATE latin1_swedish_ci);
+INSERT INTO t1 VALUES ('z','?');
+select * from t1 where s1 > (select max(s2) from t1);
+ERROR HY000: Illegal mix of collations (latin1_german1_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '>'
+select * from t1 where s1 > any (select max(s2) from t1);
+ERROR HY000: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (latin1_german1_ci,IMPLICIT) for operation '<'
+drop table t1;
+create table t1(toid int,rd int);
+create table t2(userid int,pmnew int,pmtotal int);
+insert into t2 values(1,0,0),(2,0,0);
+insert into t1 values(1,0),(1,0),(1,0),(1,12),(1,15),(1,123),(1,12312),(1,12312),(1,123),(2,0),(2,0),(2,1),(2,2);
+select userid,pmtotal,pmnew, (select count(rd) from t1 where toid=t2.userid) calc_total, (select count(rd) from t1 where rd=0 and toid=t2.userid) calc_new from t2 where userid in (select distinct toid from t1);
+userid	pmtotal	pmnew	calc_total	calc_new
+1	0	0	9	3
+2	0	0	4	2
+drop table t1, t2;
+create table t1 (s1 char(5));
+select (select 'a','b' from t1 union select 'a','b' from t1) from t1;
+ERROR 21000: Operand should contain 1 column(s)
+insert into t1 values ('tttt');
+select * from t1 where ('a','b')=(select 'a','b' from t1 union select 'a','b' from t1);
+s1
+tttt
+explain extended (select * from t1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	100.00	
+Warnings:
+Note	1003	(select 'tttt' AS `s1` from dual)
+(select * from t1);
+s1
+tttt
+drop table t1;
+create table t1 (s1 char(5), index s1(s1));
+create table t2 (s1 char(5), index s1(s1));
+insert into t1 values ('a1'),('a2'),('a3');
+insert into t2 values ('a1'),('a2');
+select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
+s1	s1 NOT IN (SELECT s1 FROM t2)
+a1	0
+a2	0
+a3	1
+select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
+s1	s1 = ANY (SELECT s1 FROM t2)
+a1	1
+a2	1
+a3	0
+select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
+s1	s1 <> ALL (SELECT s1 FROM t2)
+a1	0
+a2	0
+a3	1
+select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
+s1	s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')
+a1	0
+a2	1
+a3	1
+explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
+2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+Warnings:
+Note	1003	select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
+explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
+2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+Warnings:
+Note	1003	select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
+explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
+2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+Warnings:
+Note	1003	select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
+explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
+2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Using where; Full scan on NULL key
+Warnings:
+Note	1003	select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1`
+drop table t1,t2;
+create table t2 (a int, b int not null);
+create table t3 (a int);
+insert into t3 values (6),(7),(3);
+select * from t3 where a >= all (select b from t2);
+a
+6
+7
+3
+explain extended select * from t3 where a >= all (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,((select max(NULL) from `test`.`t2`) > <cache>(`test`.`t3`.`a`))))
+select * from t3 where a >= some (select b from t2);
+a
+explain extended select * from t3 where a >= some (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(NULL) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`))))
+select * from t3 where a >= all (select b from t2 group by 1);
+a
+6
+7
+3
+explain extended select * from t3 where a >= all (select b from t2 group by 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,((select max(NULL) from `test`.`t2`) > <cache>(`test`.`t3`.`a`))))
+select * from t3 where a >= some (select b from t2 group by 1);
+a
+explain extended select * from t3 where a >= some (select b from t2 group by 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	SUBQUERY	t2	system	NULL	NULL	NULL	NULL	0	0.00	const row not found
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(NULL) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`))))
+select * from t3 where NULL >= any (select b from t2);
+a
+explain extended select * from t3 where NULL >= any (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
+select * from t3 where NULL >= any (select b from t2 group by 1);
+a
+explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
+select * from t3 where NULL >= some (select b from t2);
+a
+explain extended select * from t3 where NULL >= some (select b from t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
+select * from t3 where NULL >= some (select b from t2 group by 1);
+a
+explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where 0
+insert into t2 values (2,2), (2,1), (3,3), (3,1);
+select * from t3 where a > all (select max(b) from t2 group by a);
+a
+6
+7
+explain extended select * from t3 where a > all (select max(b) from t2 group by a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	4	100.00	Using temporary
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(<max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`) >= <cache>(`test`.`t3`.`a`))))
+drop table t2, t3;
+CREATE TABLE `t1` ( `id` mediumint(9) NOT NULL auto_increment, `taskid` bigint(20) NOT NULL default '0', `dbid` int(11) NOT NULL default '0', `create_date` datetime NOT NULL default '0000-00-00 00:00:00', `last_update` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY  (`id`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=3 ;
+INSERT INTO `t1` (`id`, `taskid`, `dbid`, `create_date`,`last_update`) VALUES (1, 1, 15, '2003-09-29 10:31:36', '2003-09-29 10:31:36'), (2, 1, 21, now(), now());
+CREATE TABLE `t2` (`db_id` int(11) NOT NULL auto_increment,`name` varchar(200) NOT NULL default '',`primary_uid` smallint(6) NOT NULL default '0',`secondary_uid` smallint(6) NOT NULL default '0',PRIMARY KEY  (`db_id`),UNIQUE KEY `name_2` (`name`),FULLTEXT KEY `name` (`name`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=2147483647;
+INSERT INTO `t2` (`db_id`, `name`, `primary_uid`, `secondary_uid`) VALUES (18, 'Not Set 1', 0, 0),(19, 'Valid', 1, 2),(20, 'Valid 2', 1, 2),(21, 'Should Not Return', 1, 2),(26, 'Not Set 2', 0, 0),(-1, 'ALL DB\'S', 0, 0);
+CREATE TABLE `t3` (`taskgenid` mediumint(9) NOT NULL auto_increment,`dbid` int(11) NOT NULL default '0',`taskid` int(11) NOT NULL default '0',`mon` tinyint(4) NOT NULL default '1',`tues` tinyint(4) NOT NULL default '1',`wed` tinyint(4) NOT NULL default '1',`thur` tinyint(4) NOT NULL default '1',`fri` tinyint(4) NOT NULL default '1',`sat` tinyint(4) NOT NULL default '0',`sun` tinyint(4) NOT NULL default '0',`how_often` smallint(6) NOT NULL default '1',`userid` smallint(6) NOT NULL default '0',`active` tinyint(4) NOT NULL default '1',PRIMARY KEY  (`taskgenid`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=2 ;
+INSERT INTO `t3` (`taskgenid`, `dbid`, `taskid`, `mon`, `tues`,`wed`, `thur`, `fri`, `sat`, `sun`, `how_often`, `userid`, `active`) VALUES (1,-1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1);
+CREATE TABLE `t4` (`task_id` smallint(6) NOT NULL default '0',`description` varchar(200) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO `t4` (`task_id`, `description`) VALUES (1, 'Daily Check List'),(2, 'Weekly Status');
+select  dbid, name, (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') from t3 a, t2 b, t4  WHERE dbid = - 1 AND primary_uid = '1' AND t4.task_id = taskid;
+dbid	name	(date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01')
+-1	Valid	1
+-1	Valid 2	1
+-1	Should Not Return	0
+SELECT dbid, name FROM t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND ((date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01')) AND t4.task_id = taskid;
+dbid	name
+-1	Valid
+-1	Valid 2
+drop table t1,t2,t3,t4;
+CREATE TABLE t1 (id int(11) default NULL) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t1 VALUES (1),(5);
+CREATE TABLE t2 (id int(11) default NULL) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t2 VALUES (2),(6);
+select * from t1 where (1,2,6) in (select * from t2);
+ERROR 21000: Operand should contain 3 column(s)
+DROP TABLE t1,t2;
+create table t1 (s1 int);
+insert into t1 values (1);
+insert into t1 values (2);
+set sort_buffer_size = (select s1 from t1);
+ERROR 21000: Subquery returns more than 1 row
+do (select * from t1);
+Warnings:
+Error	1242	Subquery returns more than 1 row
+drop table t1;
+create table t1 (s1 char);
+insert into t1 values ('e');
+select * from t1 where 'f' > any (select s1 from t1);
+s1
+e
+select * from t1 where 'f' > any (select s1 from t1 union select s1 from t1);
+s1
+e
+explain extended select * from t1 where 'f' > any (select s1 from t1 union select s1 from t1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	100.00	
+2	SUBQUERY	t1	system	NULL	NULL	NULL	NULL	1	100.00	
+3	UNION	t1	system	NULL	NULL	NULL	NULL	1	100.00	
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
+Warnings:
+Note	1003	select 'e' AS `s1` from dual where 1
+drop table t1;
+CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');
+CREATE TABLE t2 (code char(5) NOT NULL default '',UNIQUE KEY code (code)) ENGINE=MyISAM CHARSET=latin1;
+INSERT INTO t2 VALUES ('1'),('1226'),('1245'),('1862'),('18623'),('1874'),('1967'),('6');
+select c.number as phone,(select p.code from t2 p where c.number like concat(p.code, '%') order by length(p.code) desc limit 1) as code from t1 c;
+phone	code
+69294728265	6
+18621828126	1862
+89356874041	NULL
+95895001874	NULL
+drop table t1, t2;
+create table t1 (s1 int);
+create table t2 (s1 int);
+select * from t1 where (select count(*) from t2 where t1.s2) = 1;
+ERROR 42S22: Unknown column 't1.s2' in 'where clause'
+select * from t1 where (select count(*) from t2 group by t1.s2) = 1;
+ERROR 42S22: Unknown column 't1.s2' in 'group statement'
+select count(*) from t2 group by t1.s2;
+ERROR 42S22: Unknown column 't1.s2' in 'group statement'
+drop table t1, t2;
+CREATE TABLE t1(COLA FLOAT NOT NULL,COLB FLOAT NOT NULL,COLC VARCHAR(20) DEFAULT NULL,PRIMARY KEY (COLA, COLB));
+CREATE TABLE t2(COLA FLOAT NOT NULL,COLB FLOAT NOT NULL,COLC CHAR(1) NOT NULL,PRIMARY KEY (COLA));
+INSERT INTO t1 VALUES (1,1,'1A3240'), (1,2,'4W2365');
+INSERT INTO t2 VALUES (100, 200, 'C');
+SELECT DISTINCT COLC FROM t1 WHERE COLA = (SELECT COLA FROM t2 WHERE COLB = 200 AND COLC ='C' LIMIT 1);
+COLC
+DROP TABLE t1, t2;
+CREATE TABLE t1 (a int(1));
+INSERT INTO t1 VALUES (1),(1),(1),(1),(1),(2),(3),(4),(5);
+SELECT DISTINCT (SELECT a) FROM t1 LIMIT 100;
+(SELECT a)
+1
+2
+3
+4
+5
+DROP TABLE t1;
+create table t1 (a int, b decimal(13, 3));
+insert into t1 values (1, 0.123);
+select a, (select max(b) from t1) into outfile "../../tmp/subselect.out.file.1" from t1;
+delete from t1;
+load data infile "../../tmp/subselect.out.file.1" into table t1;
+select * from t1;
+a	b
+1	0.123
+drop table t1;
+CREATE TABLE `t1` (
+`id` int(11) NOT NULL auto_increment,
+`id_cns` tinyint(3) unsigned NOT NULL default '0',
+`tipo` enum('','UNO','DUE') NOT NULL default '',
+`anno_dep` smallint(4) unsigned zerofill NOT NULL default '0000',
+`particolare` mediumint(8) unsigned NOT NULL default '0',
+`generale` mediumint(8) unsigned NOT NULL default '0',
+`bis` tinyint(3) unsigned NOT NULL default '0',
+PRIMARY KEY  (`id`),
+UNIQUE KEY `idx_cns_gen_anno` (`anno_dep`,`id_cns`,`generale`,`particolare`),
+UNIQUE KEY `idx_cns_par_anno` (`id_cns`,`anno_dep`,`tipo`,`particolare`,`bis`)
+);
+INSERT INTO `t1` VALUES (1,16,'UNO',1987,2048,9681,0),(2,50,'UNO',1987,1536,13987,0),(3,16,'UNO',1987,2432,14594,0),(4,16,'UNO',1987,1792,13422,0),(5,16,'UNO',1987,1025,10240,0),(6,16,'UNO',1987,1026,7089,0);
+CREATE TABLE `t2` (
+`id` tinyint(3) unsigned NOT NULL auto_increment,
+`max_anno_dep` smallint(6) unsigned NOT NULL default '0',
+PRIMARY KEY  (`id`)
+);
+INSERT INTO `t2` VALUES (16,1987),(50,1990),(51,1990);
+SELECT cns.id, cns.max_anno_dep, cns.max_anno_dep = (SELECT s.anno_dep FROM t1 AS s WHERE s.id_cns = cns.id ORDER BY s.anno_dep DESC LIMIT 1) AS PIPPO FROM t2 AS cns;
+id	max_anno_dep	PIPPO
+16	1987	1
+50	1990	0
+51	1990	NULL
+DROP TABLE t1, t2;
+create table t1 (a int);
+insert into t1 values (1), (2), (3);
+SET SQL_SELECT_LIMIT=1;
+select sum(a) from (select * from t1) as a;
+sum(a)
+6
+select 2 in (select * from t1);
+2 in (select * from t1)
+1
+SET SQL_SELECT_LIMIT=default;
+drop table t1;
+CREATE TABLE t1 (a int, b int, INDEX (a));
+INSERT INTO t1 VALUES (1, 1), (1, 2), (1, 3);
+SELECT * FROM t1 WHERE a = (SELECT MAX(a) FROM t1 WHERE a = 1) ORDER BY b;
+a	b
+1	1
+1	2
+1	3
+DROP TABLE t1;
+create table t1(val varchar(10));
+insert into t1 values ('aaa'), ('bbb'),('eee'),('mmm'),('ppp');
+select count(*) from t1 as w1 where w1.val in (select w2.val from t1 as w2 where w2.val like 'm%') and w1.val in (select w3.val from t1 as w3 where w3.val like 'e%');
+count(*)
+0
+drop table t1;
+create table t1 (id int not null, text varchar(20) not null default '', primary key (id));
+insert into t1 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text11'), (12, 'text12');
+select * from t1 where id not in (select id from t1 where id < 8);
+id	text
+8	text8
+9	text9
+10	text10
+11	text11
+12	text12
+select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null);
+id	text
+8	text8
+9	text9
+10	text10
+11	text11
+12	text12
+explain extended select * from t1 where id not in (select id from t1 where id < 8);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	12	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	unique_subquery	PRIMARY	PRIMARY	4	func	1	100.00	Using index; Using where
+Warnings:
+Note	1003	select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`))))))))
+explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	tt	ALL	NULL	NULL	NULL	NULL	12	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	eq_ref	PRIMARY	PRIMARY	4	test.tt.id	1	100.00	Using where; Using index
+Warnings:
+Note	1276	Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<in_optimizer>(1,<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))))
+insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001');
+create table t2 (id int not null, text varchar(20) not null default '', primary key (id));
+insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10');
+select * from t1 a left join t2 b on (a.id=b.id or b.id is null) join t1 c on (if(isnull(b.id), 1000, b.id)=c.id);
+id	text	id	text	id	text
+1	text1	1	text1	1	text1
+2	text2	2	text2	2	text2
+3	text3	3	text3	3	text3
+4	text4	4	text4	4	text4
+5	text5	5	text5	5	text5
+6	text6	6	text6	6	text6
+7	text7	7	text7	7	text7
+8	text8	8	text8	8	text8
+9	text9	9	text9	9	text9
+10	text10	10	text10	10	text10
+11	text11	11	text1	11	text11
+12	text12	12	text2	12	text12
+1000	text1000	NULL	NULL	1000	text1000
+1001	text1001	NULL	NULL	1000	text1000
+explain extended select * from t1 a left join t2 b on (a.id=b.id or b.id is null) join t1 c on (if(isnull(b.id), 1000, b.id)=c.id);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	a	ALL	NULL	NULL	NULL	NULL	14	100.00	
+1	SIMPLE	b	eq_ref	PRIMARY	PRIMARY	4	test.a.id	2	100.00	
+1	SIMPLE	c	eq_ref	PRIMARY	PRIMARY	4	func	1	100.00	Using index condition
+Warnings:
+Note	1003	select `test`.`a`.`id` AS `id`,`test`.`a`.`text` AS `text`,`test`.`b`.`id` AS `id`,`test`.`b`.`text` AS `text`,`test`.`c`.`id` AS `id`,`test`.`c`.`text` AS `text` from `test`.`t1` `a` left join `test`.`t2` `b` on(((`test`.`b`.`id` = `test`.`a`.`id`) or isnull(`test`.`b`.`id`))) join `test`.`t1` `c` where (if(isnull(`test`.`b`.`id`),1000,`test`.`b`.`id`) = `test`.`c`.`id`)
+drop table t1,t2;
+create table t1 (a int);
+insert into t1 values (1);
+explain select benchmark(1000, (select a from t1 where a=sha(rand())));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+2	UNCACHEABLE SUBQUERY	t1	system	NULL	NULL	NULL	NULL	1	
+drop table t1;
+create table t1(id int);
+create table t2(id int);
+create table t3(flag int);
+select (select * from t3 where id not null) from t1, t2;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'null) from t1, t2' at line 1
+drop table t1,t2,t3;
+CREATE TABLE t1 (id INT);
+CREATE TABLE t2 (id INT);
+INSERT INTO t1 VALUES (1), (2);
+INSERT INTO t2 VALUES (1);
+SELECT t1.id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id);
+id	c
+1	1
+2	0
+SELECT id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id);
+id	c
+1	1
+2	0
+SELECT t1.id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id) ORDER BY t1.id;
+id	c
+1	1
+2	0
+SELECT id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id) ORDER BY id;
+id	c
+1	1
+2	0
+DROP TABLE t1,t2;
+CREATE TABLE t1 ( a int, b int );
+INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
+SELECT a FROM t1 WHERE a > ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+3
+SELECT a FROM t1 WHERE a < ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+SELECT a FROM t1 WHERE a = ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+2
+SELECT a FROM t1 WHERE a >= ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+3
+SELECT a FROM t1 WHERE a < ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+SELECT a FROM t1 WHERE a = ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+2
+SELECT a FROM t1 WHERE a >= ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+3
+ALTER TABLE t1 ADD INDEX (a);
+SELECT a FROM t1 WHERE a > ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+3
+SELECT a FROM t1 WHERE a < ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+SELECT a FROM t1 WHERE a = ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+2
+SELECT a FROM t1 WHERE a >= ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+3
+SELECT a FROM t1 WHERE a < ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+SELECT a FROM t1 WHERE a = ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+2
+SELECT a FROM t1 WHERE a >= ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL ( SELECT a FROM t1 WHERE b = 2 );
+a
+1
+3
+SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 HAVING a = 2);
+a
+3
+SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 HAVING a = 2);
+a
+1
+SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 HAVING a = 2);
+a
+2
+SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 HAVING a = 2);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 HAVING a = 2);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 HAVING a = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 HAVING a = 2);
+a
+3
+SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 HAVING a = 2);
+a
+1
+SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 HAVING a = 2);
+a
+2
+SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 HAVING a = 2);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 HAVING a = 2);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 HAVING a = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+3
+SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+1
+SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+2
+SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+3
+SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+1
+SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+2
+SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+3
+SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+1
+SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+2
+SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+3
+SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+1
+SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+2
+SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE (1,2) > ANY (SELECT a FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE a > ANY (SELECT a,2 FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE (1,2) > ANY (SELECT a,2 FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE (1,2) > ALL (SELECT a FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE a > ALL (SELECT a,2 FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE (1,2) > ALL (SELECT a,2 FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE (1,2) = ALL (SELECT a,2 FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE (1,2) <> ANY (SELECT a,2 FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE (1,2) = ANY (SELECT a FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 2 column(s)
+SELECT a FROM t1 WHERE a = ANY (SELECT a,2 FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE (1,2) = ANY (SELECT a,2 FROM t1 WHERE b = 2);
+a
+SELECT a FROM t1 WHERE (1,2) <> ALL (SELECT a FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 2 column(s)
+SELECT a FROM t1 WHERE a <> ALL (SELECT a,2 FROM t1 WHERE b = 2);
+ERROR 21000: Operand should contain 1 column(s)
+SELECT a FROM t1 WHERE (1,2) <> ALL (SELECT a,2 FROM t1 WHERE b = 2);
+a
+1
+2
+3
+SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 WHERE b = 2);
+a
+2
+SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 WHERE b = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 HAVING a = 2);
+a
+2
+SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 HAVING a = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 WHERE b = 2 UNION SELECT a,1 FROM t1 WHERE b = 2);
+a
+2
+SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 WHERE b = 2 UNION SELECT a,1 FROM t1 WHERE b = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 HAVING a = 2 UNION SELECT a,1 FROM t1 HAVING a = 2);
+a
+2
+SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 HAVING a = 2 UNION SELECT a,1 FROM t1 HAVING a = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+3
+SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+1
+SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+2
+SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+3
+SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+1
+SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+2
+SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2 group by a);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 group by a HAVING a = 2);
+a
+3
+SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 group by a HAVING a = 2);
+a
+1
+SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 group by a HAVING a = 2);
+a
+2
+SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 group by a HAVING a = 2);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 group by a HAVING a = 2);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 group by a HAVING a = 2);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 group by a HAVING a = 2);
+a
+3
+SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 group by a HAVING a = 2);
+a
+1
+SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 group by a HAVING a = 2);
+a
+2
+SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 group by a HAVING a = 2);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 group by a HAVING a = 2);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 group by a HAVING a = 2);
+a
+1
+3
+SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a > t1.a), '-') from t1 a;
+concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a > t1.a), '-')
+0-
+0-
+1-
+SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a < t1.a), '-') from t1 a;
+concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a < t1.a), '-')
+1-
+0-
+0-
+SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a = t1.a), '-') from t1 a;
+concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a = t1.a), '-')
+0-
+1-
+0-
+DROP TABLE t1;
+CREATE TABLE t1 ( a double, b double );
+INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
+SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2e0);
+a
+3
+SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2e0);
+a
+1
+SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2e0);
+a
+2
+SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2e0);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2e0);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2e0);
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2e0);
+a
+3
+SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2e0);
+a
+1
+SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2e0);
+a
+2
+SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2e0);
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2e0);
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2e0);
+a
+1
+3
+DROP TABLE t1;
+CREATE TABLE t1 ( a char(1), b char(1));
+INSERT INTO t1 VALUES ('1','1'),('2','2'),('3','3');
+SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = '2');
+a
+3
+SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = '2');
+a
+1
+SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = '2');
+a
+2
+SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = '2');
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = '2');
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = '2');
+a
+1
+3
+SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = '2');
+a
+3
+SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = '2');
+a
+1
+SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = '2');
+a
+2
+SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = '2');
+a
+2
+3
+SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = '2');
+a
+1
+2
+SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = '2');
+a
+1
+3
+DROP TABLE t1;
+create table t1 (a int, b int);
+insert into t1 values (1,2),(3,4);
+select * from t1 up where exists (select * from t1 where t1.a=up.a);
+a	b
+1	2
+3	4
+explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+Warnings:
+Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
+Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` semi join (`test`.`t1`) where 1
+drop table t1;
+CREATE TABLE t1 (t1_a int);
+INSERT INTO t1 VALUES (1);
+CREATE TABLE t2 (t2_a int, t2_b int, PRIMARY KEY (t2_a, t2_b));
+INSERT INTO t2 VALUES (1, 1), (1, 2);
+SELECT * FROM t1, t2 table2 WHERE t1_a = 1 AND table2.t2_a = 1
+HAVING table2.t2_b = (SELECT MAX(t2_b) FROM t2 WHERE t2_a = table2.t2_a);
+t1_a	t2_a	t2_b
+1	1	2
+DROP TABLE t1, t2;
+CREATE TABLE t1 (id int(11) default NULL,name varchar(10) default NULL);
+INSERT INTO t1 VALUES (1,'Tim'),(2,'Rebecca'),(3,NULL);
+CREATE TABLE t2 (id int(11) default NULL, pet varchar(10) default NULL);
+INSERT INTO t2 VALUES (1,'Fido'),(2,'Spot'),(3,'Felix');
+SELECT a.*, b.* FROM (SELECT * FROM t1) AS a JOIN t2 as b on a.id=b.id;
+id	name	id	pet
+1	Tim	1	Fido
+2	Rebecca	2	Spot
+3	NULL	3	Felix
+drop table t1,t2;
+CREATE TABLE t1 ( a int, b int );
+CREATE TABLE t2 ( c int, d int );
+INSERT INTO t1 VALUES (1,2), (2,3), (3,4);
+SELECT a AS abc, b FROM t1 outr WHERE b =
+(SELECT MIN(b) FROM t1 WHERE a=outr.a);
+abc	b
+1	2
+2	3
+3	4
+INSERT INTO t2 SELECT a AS abc, b FROM t1 outr WHERE b =
+(SELECT MIN(b) FROM t1 WHERE a=outr.a);
+select * from t2;
+c	d
+1	2
+2	3
+3	4
+CREATE TABLE t3 SELECT a AS abc, b FROM t1 outr WHERE b =
+(SELECT MIN(b) FROM t1 WHERE a=outr.a);
+select * from t3;
+abc	b
+1	2
+2	3
+3	4
+prepare stmt1 from "INSERT INTO t2 SELECT a AS abc, b FROM t1 outr WHERE b = (SELECT MIN(b) FROM t1 WHERE a=outr.a);";
+execute stmt1;
+deallocate prepare stmt1;
+select * from t2;
+c	d
+1	2
+2	3
+3	4
+1	2
+2	3
+3	4
+drop table t3;
+prepare stmt1 from "CREATE TABLE t3 SELECT a AS abc, b FROM t1 outr WHERE b = (SELECT MIN(b) FROM t1 WHERE a=outr.a);";
+execute stmt1;
+select * from t3;
+abc	b
+1	2
+2	3
+3	4
+deallocate prepare stmt1;
+DROP TABLE t1, t2, t3;
+CREATE TABLE `t1` ( `a` int(11) default NULL) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+insert into t1 values (1);
+CREATE TABLE `t2` ( `b` int(11) default NULL, `a` int(11) default NULL) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+insert into t2 values (1,2);
+select t000.a, count(*) `C` FROM t1 t000 GROUP BY t000.a HAVING count(*) > ALL (SELECT count(*) FROM t2 t001 WHERE t001.a=1);
+a	C
+1	1
+drop table t1,t2;
+create table t1 (a int not null auto_increment primary key, b varchar(40), fulltext(b));
+insert into t1 (b) values ('ball'),('ball games'), ('games'), ('foo'), ('foobar'), ('Serg'), ('Sergei'),('Georg'), ('Patrik'),('Hakan');
+create table t2 (a int);
+insert into t2 values (1),(3),(2),(7);
+select a,b from t1 where match(b) against ('Ball') > 0;
+a	b
+1	ball
+2	ball games
+select a from t2 where a in (select a from t1 where match(b) against ('Ball') > 0);
+a
+1
+2
+drop table t1,t2;
+CREATE TABLE t1(`IZAVORGANG_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin,`KUERZEL` VARCHAR(10) CHARACTER SET latin1 COLLATE latin1_bin,`IZAANALYSEART_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin,`IZAPMKZ_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin);
+CREATE INDEX AK01IZAVORGANG ON t1(izaAnalyseart_id,Kuerzel);
+INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000001','601','D0000000001','I0000000001');
+INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000002','602','D0000000001','I0000000001');
+INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000003','603','D0000000001','I0000000001');
+INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000004','101','D0000000001','I0000000001');
+SELECT `IZAVORGANG_ID` FROM t1 WHERE `KUERZEL` IN(SELECT MIN(`KUERZEL`)`Feld1` FROM t1 WHERE `KUERZEL` LIKE'601%'And`IZAANALYSEART_ID`='D0000000001');
+IZAVORGANG_ID
+D0000000001
+drop table t1;
+CREATE TABLE `t1` ( `aid` int(11) NOT NULL default '0', `bid` int(11) NOT NULL default '0', PRIMARY KEY  (`aid`,`bid`));
+CREATE TABLE `t2` ( `aid` int(11) NOT NULL default '0', `bid` int(11) NOT NULL default '0', PRIMARY KEY  (`aid`,`bid`));
+insert into t1 values (1,1),(1,2),(2,1),(2,2);
+insert into t2 values (1,2),(2,2);
+select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid);
+aid	bid
+1	1
+2	1
+alter table t2 drop primary key;
+alter table t2 add key KEY1 (aid, bid);
+select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid);
+aid	bid
+1	1
+2	1
+alter table t2 drop key KEY1;
+alter table t2 add primary key (bid, aid);
+select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid);
+aid	bid
+1	1
+2	1
+drop table t1,t2;
+CREATE TABLE t1 (howmanyvalues bigint, avalue int);
+INSERT INTO t1 VALUES (1, 1),(2, 1),(2, 2),(3, 1),(3, 2),(3, 3),(4, 1),(4, 2),(4, 3),(4, 4);
+SELECT howmanyvalues, count(*) from t1 group by howmanyvalues;
+howmanyvalues	count(*)
+1	1
+2	2
+3	3
+4	4
+SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.howmanyvalues) as mycount from t1 a group by a.howmanyvalues;
+howmanyvalues	mycount
+1	1
+2	2
+3	3
+4	4
+CREATE INDEX t1_howmanyvalues_idx ON t1 (howmanyvalues);
+SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues+1 = a.howmanyvalues+1) as mycount from t1 a group by a.howmanyvalues;
+howmanyvalues	mycount
+1	1
+2	2
+3	3
+4	4
+SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.howmanyvalues) as mycount from t1 a group by a.howmanyvalues;
+howmanyvalues	mycount
+1	1
+2	2
+3	3
+4	4
+SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.avalue) as mycount from t1 a group by a.howmanyvalues;
+howmanyvalues	mycount
+1	1
+2	1
+3	1
+4	1
+drop table t1;
+create table t1 (x int);
+select  (select b.x from t1 as b where b.x=a.x) from t1 as a where a.x=2 group by a.x;
+(select b.x from t1 as b where b.x=a.x)
+drop table t1;
+CREATE TABLE `t1` ( `master` int(10) unsigned NOT NULL default '0', `map` smallint(6) unsigned NOT NULL default '0', `slave` int(10) unsigned NOT NULL default '0', `access` int(10) unsigned NOT NULL default '0', UNIQUE KEY `access_u` (`master`,`map`,`slave`));
+INSERT INTO `t1` VALUES (1,0,0,700),(1,1,1,400),(1,5,5,400),(1,12,12,400),(1,12,32,400),(4,12,32,400);
+CREATE TABLE `t2` ( `id` int(10) unsigned NOT NULL default '0', `pid` int(10) unsigned NOT NULL default '0', `map` smallint(6) unsigned NOT NULL default '0', `level` tinyint(4) unsigned NOT NULL default '0', `title` varchar(255) default NULL, PRIMARY KEY  (`id`,`pid`,`map`), KEY `level` (`level`), KEY `id` (`id`,`map`)) ;
+INSERT INTO `t2` VALUES (6,5,12,7,'a'),(12,0,0,7,'a'),(12,1,0,7,'a'),(12,5,5,7,'a'),(12,5,12,7,'a');
+SELECT b.sc FROM (SELECT (SELECT a.access FROM t1 a WHERE a.map = op.map AND a.slave = op.pid AND a.master = 1) ac FROM t2 op WHERE op.id = 12 AND op.map = 0) b;
+ERROR 42S22: Unknown column 'b.sc' in 'field list'
+SELECT b.ac FROM (SELECT (SELECT a.access FROM t1 a WHERE a.map = op.map AND a.slave = op.pid AND a.master = 1) ac FROM t2 op WHERE op.id = 12 AND op.map = 0) b;
+ac
+700
+NULL
+drop tables t1,t2;
+create table t1 (a int not null, b int not null, c int, primary key (a,b));
+insert into t1 values (1,1,1), (2,2,2), (3,3,3);
+set @b:= 0;
+explain select sum(a) from t1 where b > @b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	PRIMARY	8	NULL	3	Using where; Using index
+set @a:= (select sum(a) from t1 where b > @b);
+explain select a from t1 where c=2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
+do @a:= (select sum(a) from t1 where b > @b);
+explain select a from t1 where c=2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
+drop table t1;
+set @got_val= (SELECT 1 FROM (SELECT 'A' as my_col) as T1 ) ;
+create table t1 (a int, b int);
+create table t2 (a int, b int);
+insert into t1 values (1,1),(1,2),(1,3),(2,4),(2,5);
+insert into t2 values (1,3),(2,1);
+select distinct a,b, (select max(b) from t2 where t1.b=t2.a) from t1 order by t1.b;
+a	b	(select max(b) from t2 where t1.b=t2.a)
+1	1	3
+1	2	1
+1	3	NULL
+2	4	NULL
+2	5	NULL
+drop table t1, t2;
+create table t1 (id int);
+create table t2 (id int, body text, fulltext (body));
+insert into t1 values(1),(2),(3);
+insert into t2 values (1,'test'), (2,'mysql'), (3,'test'), (4,'test');
+select count(distinct id) from t1 where id in (select id from t2 where match(body) against ('mysql' in boolean mode));
+count(distinct id)
+1
+drop table t2,t1;
+create table t1 (s1 int,s2 int);
+insert into t1 values (20,15);
+select * from t1 where  (('a',null) <=> (select 'a',s2 from t1 where s1 = 0));
+s1	s2
+drop table t1;
+create table t1 (s1 int);
+insert into t1 values (1),(null);
+select * from t1 where s1 < all (select s1 from t1);
+s1
+select s1, s1 < all (select s1 from t1) from t1;
+s1	s1 < all (select s1 from t1)
+1	0
+NULL	NULL
+drop table t1;
+CREATE TABLE t1 (
+Code char(3) NOT NULL default '',
+Name char(52) NOT NULL default '',
+Continent enum('Asia','Europe','North America','Africa','Oceania','Antarctica','South America') NOT NULL default 'Asia',
+Region char(26) NOT NULL default '',
+SurfaceArea float(10,2) NOT NULL default '0.00',
+IndepYear smallint(6) default NULL,
+Population int(11) NOT NULL default '0',
+LifeExpectancy float(3,1) default NULL,
+GNP float(10,2) default NULL,
+GNPOld float(10,2) default NULL,
+LocalName char(45) NOT NULL default '',
+GovernmentForm char(45) NOT NULL default '',
+HeadOfState char(60) default NULL,
+Capital int(11) default NULL,
+Code2 char(2) NOT NULL default ''
+) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('XXX','Xxxxx','Oceania','Xxxxxx',26.00,0,0,0,0,0,'Xxxxx','Xxxxx','Xxxxx',NULL,'XX');
+INSERT INTO t1 VALUES ('ASM','American Samoa','Oceania','Polynesia',199.00,0,68000,75.1,334.00,NULL,'Amerika Samoa','US Territory','George W. Bush',54,'AS');
+INSERT INTO t1 VALUES ('ATF','French Southern territories','Antarctica','Antarctica',7780.00,0,0,NULL,0.00,NULL,'Terres australes françaises','Nonmetropolitan Territory of France','Jacques Chirac',NULL,'TF');
+INSERT INTO t1 VALUES ('UMI','United States Minor Outlying Islands','Oceania','Micronesia/Caribbean',16.00,0,0,NULL,0.00,NULL,'United States Minor Outlying Islands','Dependent Territory of the US','George W. Bush',NULL,'UM');
+/*!40000 ALTER TABLE t1 ENABLE KEYS */;
+SELECT DISTINCT Continent AS c FROM t1 outr WHERE
+Code <> SOME ( SELECT Code FROM t1 WHERE Continent = outr.Continent AND
+Population < 200);
+c
+Oceania
+drop table t1;
+create table t1 (a1 int);
+create table t2 (b1 int);
+select * from t1 where a2 > any(select b1 from t2);
+ERROR 42S22: Unknown column 'a2' in 'IN/ALL/ANY subquery'
+select * from t1 where a1 > any(select b1 from t2);
+a1
+drop table t1,t2;
+create table t1 (a integer, b integer);
+select (select * from t1) = (select 1,2);
+(select * from t1) = (select 1,2)
+NULL
+select (select 1,2) = (select * from t1);
+(select 1,2) = (select * from t1)
+NULL
+select  row(1,2) = ANY (select * from t1);
+row(1,2) = ANY (select * from t1)
+0
+select  row(1,2) != ALL (select * from t1);
+row(1,2) != ALL (select * from t1)
+1
+drop table t1;
+create table t1 (a integer, b integer);
+select row(1,(2,2)) in (select * from t1 );
+ERROR 21000: Operand should contain 2 column(s)
+select row(1,(2,2)) = (select * from t1 );
+ERROR 21000: Operand should contain 2 column(s)
+select (select * from t1) = row(1,(2,2));
+ERROR 21000: Operand should contain 1 column(s)
+drop table t1;
+create  table t1 (a integer);
+insert into t1 values (1);
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx ;
+ERROR 42S22: Reference 'xx' not supported (forward reference in item list)
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx;
+ERROR 42S22: Reference 'xx' not supported (forward reference in item list)
+select 1 as xx, 1 = ALL (  select 1 from t1 where 1 = xx );
+xx	1 = ALL (  select 1 from t1 where 1 = xx )
+1	1
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx;
+ERROR 42S22: Reference 'xx' not supported (forward reference in item list)
+select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx from DUAL;
+ERROR 42S22: Reference 'xx' not supported (forward reference in item list)
+drop table t1;
+CREATE TABLE t1 (
+categoryId int(11) NOT NULL,
+courseId int(11) NOT NULL,
+startDate datetime NOT NULL,
+endDate datetime NOT NULL,
+createDate datetime NOT NULL,
+modifyDate timestamp NOT NULL,
+attributes text NOT NULL
+);
+INSERT INTO t1 VALUES (1,41,'2004-02-09','2010-01-01','2004-02-09','2004-02-09',''),
+(1,86,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''),
+(1,87,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''),
+(2,52,'2004-03-15','2004-10-01','2004-03-15','2004-09-17',''),
+(2,53,'2004-03-16','2004-10-01','2004-03-16','2004-09-17',''),
+(2,88,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''),
+(2,89,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''),
+(3,51,'2004-02-09','2010-01-01','2004-02-09','2004-02-09',''),
+(5,12,'2004-02-18','2010-01-01','2004-02-18','2004-02-18','');
+CREATE TABLE t2 (
+userId int(11) NOT NULL,
+courseId int(11) NOT NULL,
+date datetime NOT NULL
+);
+INSERT INTO t2 VALUES (5141,71,'2003-11-18'),
+(5141,72,'2003-11-25'),(5141,41,'2004-08-06'),
+(5141,52,'2004-08-06'),(5141,53,'2004-08-06'),
+(5141,12,'2004-08-06'),(5141,86,'2004-10-21'),
+(5141,87,'2004-10-21'),(5141,88,'2004-10-21'),
+(5141,89,'2004-10-22'),(5141,51,'2004-10-26');
+CREATE TABLE t3 (
+groupId int(11) NOT NULL,
+parentId int(11) NOT NULL,
+startDate datetime NOT NULL,
+endDate datetime NOT NULL,
+createDate datetime NOT NULL,
+modifyDate timestamp NOT NULL,
+ordering int(11)
+);
+INSERT INTO t3 VALUES (12,9,'1000-01-01','3999-12-31','2004-01-29','2004-01-29',NULL);
+CREATE TABLE t4 (
+id int(11) NOT NULL,
+groupTypeId int(11) NOT NULL,
+groupKey varchar(50) NOT NULL,
+name text,
+ordering int(11),
+description text,
+createDate datetime NOT NULL,
+modifyDate timestamp NOT NULL
+);
+INSERT INTO t4 VALUES (9,5,'stationer','stationer',0,'Stationer','2004-01-29','2004-01-29'),
+(12,5,'group2','group2',0,'group2','2004-01-29','2004-01-29');
+CREATE TABLE t5 (
+userId int(11) NOT NULL,
+groupId int(11) NOT NULL,
+createDate datetime NOT NULL,
+modifyDate timestamp NOT NULL
+);
+INSERT INTO t5 VALUES (5141,12,'2004-08-06','2004-08-06');
+select
+count(distinct t2.userid) pass,
+groupstuff.*,
+count(t2.courseid) crse,
+t1.categoryid,
+t2.courseid,
+date_format(date, '%b%y') as colhead
+from t2
+join t1 on t2.courseid=t1.courseid
+join
+(
+select
+t5.userid,
+parentid,
+parentgroup,
+childid,
+groupname,
+grouptypeid
+from t5
+join
+(
+select t4.id as parentid,
+t4.name as parentgroup,
+t4.id as childid,
+t4.name as groupname,
+t4.grouptypeid
+from t4
+) as gin on t5.groupid=gin.childid
+) as groupstuff on t2.userid = groupstuff.userid
+group by
+groupstuff.groupname, colhead , t2.courseid;
+pass	userid	parentid	parentgroup	childid	groupname	grouptypeid	crse	categoryid	courseid	colhead
+1	5141	12	group2	12	group2	5	1	5	12	Aug04
+1	5141	12	group2	12	group2	5	1	1	41	Aug04
+1	5141	12	group2	12	group2	5	1	2	52	Aug04
+1	5141	12	group2	12	group2	5	1	2	53	Aug04
+1	5141	12	group2	12	group2	5	1	3	51	Oct04
+1	5141	12	group2	12	group2	5	1	1	86	Oct04
+1	5141	12	group2	12	group2	5	1	1	87	Oct04
+1	5141	12	group2	12	group2	5	1	2	88	Oct04
+1	5141	12	group2	12	group2	5	1	2	89	Oct04
+drop table t1, t2, t3, t4, t5;
+create table t1 (a int);
+insert into t1 values (1), (2), (3);
+SELECT 1 FROM t1 WHERE (SELECT 1) in (SELECT 1);
+1
+1
+1
+1
+drop table t1;
+create table t1 (a int);
+create table t2 (a int);
+insert into t1 values (1),(2);
+insert into t2 values (0),(1),(2),(3);
+select a from t2 where a in (select a from t1);
+a
+1
+2
+select a from t2 having a in (select a from t1);
+a
+1
+2
+prepare stmt1 from "select a from t2 where a in (select a from t1)";
+execute stmt1;
+a
+1
+2
+execute stmt1;
+a
+1
+2
+deallocate prepare stmt1;
+prepare stmt1 from "select a from t2 having a in (select a from t1)";
+execute stmt1;
+a
+1
+2
+execute stmt1;
+a
+1
+2
+deallocate prepare stmt1;
+drop table t1, t2;
+create table t1 (a int, b int);
+insert into t1 values (1,2);
+select 1 = (select * from t1);
+ERROR 21000: Operand should contain 1 column(s)
+select (select * from t1) = 1;
+ERROR 21000: Operand should contain 2 column(s)
+select (1,2) = (select a from t1);
+ERROR 21000: Operand should contain 2 column(s)
+select (select a from t1) = (1,2);
+ERROR 21000: Operand should contain 1 column(s)
+select (1,2,3) = (select * from t1);
+ERROR 21000: Operand should contain 3 column(s)
+select (select * from t1) = (1,2,3);
+ERROR 21000: Operand should contain 2 column(s)
+drop table t1;
+CREATE TABLE `t1` (
+`itemid` bigint(20) unsigned NOT NULL auto_increment,
+`sessionid` bigint(20) unsigned default NULL,
+`time` int(10) unsigned NOT NULL default '0',
+`type` set('A','D','E','F','G','I','L','N','U') collate latin1_general_ci NOT
+NULL default '',
+`data` text collate latin1_general_ci NOT NULL,
+PRIMARY KEY  (`itemid`)
+) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;
+INSERT INTO `t1` VALUES (1, 1, 1, 'D', '');
+CREATE TABLE `t2` (
+`sessionid` bigint(20) unsigned NOT NULL auto_increment,
+`pid` int(10) unsigned NOT NULL default '0',
+`date` int(10) unsigned NOT NULL default '0',
+`ip` varchar(15) collate latin1_general_ci NOT NULL default '',
+PRIMARY KEY  (`sessionid`)
+) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;
+INSERT INTO `t2` VALUES (1, 1, 1, '10.10.10.1');
+SELECT s.ip, count( e.itemid ) FROM `t1` e JOIN t2 s ON s.sessionid = e.sessionid WHERE e.sessionid = ( SELECT sessionid FROM t2 ORDER BY sessionid DESC LIMIT 1 ) GROUP BY s.ip HAVING count( e.itemid ) >0 LIMIT 0 , 30;
+ip	count( e.itemid )
+10.10.10.1	1
+drop tables t1,t2;
+create table t1 (fld enum('0','1'));
+insert into t1 values ('1');
+select * from (select max(fld) from t1) as foo;
+max(fld)
+1
+drop table t1;
+set @tmp11867_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='semijoin_with_cache=off';
+CREATE TABLE t1 (one int, two int, flag char(1));
+CREATE TABLE t2 (one int, two int, flag char(1));
+INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
+INSERT INTO t2 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
+SELECT * FROM t1
+WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t2 WHERE flag = 'N');
+one	two	flag
+5	6	N
+7	8	N
+SELECT * FROM t1
+WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t1 WHERE flag = 'N');
+one	two	flag
+5	6	N
+7	8	N
+insert into t2 values (null,null,'N');
+insert into t2 values (null,3,'0');
+insert into t2 values (null,5,'0');
+insert into t2 values (10,null,'0');
+insert into t1 values (10,3,'0');
+insert into t1 values (10,5,'0');
+insert into t1 values (10,10,'0');
+SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N') as 'test' from t1;
+one	two	test
+1	2	NULL
+2	3	NULL
+3	4	NULL
+5	6	1
+7	8	1
+10	3	NULL
+10	5	NULL
+10	10	NULL
+SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N');
+one	two
+5	6
+7	8
+SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N' group by one,two) as 'test' from t1;
+one	two	test
+1	2	NULL
+2	3	NULL
+3	4	NULL
+5	6	1
+7	8	1
+10	3	NULL
+10	5	NULL
+10	10	NULL
+SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0') as 'test' from t1;
+one	two	test
+1	2	0
+2	3	NULL
+3	4	0
+5	6	0
+7	8	0
+10	3	NULL
+10	5	NULL
+10	10	NULL
+SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
+one	two	test
+1	2	0
+2	3	NULL
+3	4	0
+5	6	0
+7	8	0
+10	3	NULL
+10	5	NULL
+10	10	NULL
+explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0') as 'test' from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	9	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`)))) and trigcond(trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
+explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	100.00	
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	9	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where (`test`.`t2`.`flag` = 'N')
+explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	9	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`)))) and trigcond(trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
+DROP TABLE t1,t2;
+set optimizer_switch=@tmp11867_optimizer_switch;
+CREATE TABLE t1 (a char(5), b char(5));
+INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa');
+SELECT * FROM t1 WHERE (a,b) IN (('aaa','aaa'), ('aaa','bbb'));
+a	b
+aaa	aaa
+DROP TABLE t1;
+CREATE TABLE t1 (a int);
+CREATE TABLE t2 (a int, b int);
+CREATE TABLE t3 (b int NOT NULL);
+INSERT INTO t1 VALUES (1), (2), (3), (4);
+INSERT INTO t2 VALUES (1,10), (3,30);
+SELECT * FROM t2 LEFT JOIN t3 ON t2.b=t3.b
+WHERE t3.b IS NOT NULL OR t2.a > 10;
+a	b	b
+SELECT * FROM t1
+WHERE t1.a NOT IN (SELECT a FROM t2 LEFT JOIN t3 ON t2.b=t3.b
+WHERE t3.b IS NOT NULL OR t2.a > 10);
+a
+1
+2
+3
+4
+DROP TABLE t1,t2,t3;
+CREATE TABLE t1 (f1 INT);
+CREATE TABLE t2 (f2 INT);
+INSERT INTO t1 VALUES (1);
+SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2);
+f1
+1
+SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2 WHERE 1=0);
+f1
+1
+INSERT INTO t2 VALUES (1);
+INSERT INTO t2 VALUES (2);
+SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2 WHERE f2=0);
+f1
+1
+DROP TABLE t1, t2;
+select 1 from dual where 1 < any (select 2);
+1
+1
+select 1 from dual where 1 < all (select 2);
+1
+1
+select 1 from dual where 2 > any (select 1);
+1
+1
+select 1 from dual where 2 > all (select 1);
+1
+1
+select 1 from dual where 1 < any (select 2 from dual);
+1
+1
+select 1 from dual where 1 < all (select 2 from dual where 1!=1);
+1
+1
+create table t1 (s1 char);
+insert into t1 values (1),(2);
+select * from t1 where (s1 < any (select s1 from t1));
+s1
+1
+select * from t1 where not (s1 < any (select s1 from t1));
+s1
+2
+select * from t1 where (s1 < ALL (select s1+1 from t1));
+s1
+1
+select * from t1 where not(s1 < ALL (select s1+1 from t1));
+s1
+2
+select * from t1 where (s1+1 = ANY (select s1 from t1));
+s1
+1
+select * from t1 where NOT(s1+1 = ANY (select s1 from t1));
+s1
+2
+select * from t1 where (s1 = ALL (select s1/s1 from t1));
+s1
+1
+select * from t1 where NOT(s1 = ALL (select s1/s1 from t1));
+s1
+2
+drop table t1;
+create table t1 (
+retailerID varchar(8) NOT NULL,
+statusID   int(10) unsigned NOT NULL,
+changed    datetime NOT NULL,
+UNIQUE KEY retailerID (retailerID, statusID, changed)
+);
+INSERT INTO t1 VALUES("0026", "1", "2005-12-06 12:18:56");
+INSERT INTO t1 VALUES("0026", "2", "2006-01-06 12:25:53");
+INSERT INTO t1 VALUES("0037", "1", "2005-12-06 12:18:56");
+INSERT INTO t1 VALUES("0037", "2", "2006-01-06 12:25:53");
+INSERT INTO t1 VALUES("0048", "1", "2006-01-06 12:37:50");
+INSERT INTO t1 VALUES("0059", "1", "2006-01-06 12:37:50");
+select * from t1 r1
+where (r1.retailerID,(r1.changed)) in
+(SELECT r2.retailerId,(max(changed)) from t1 r2
+group by r2.retailerId);
+retailerID	statusID	changed
+0026	2	2006-01-06 12:25:53
+0037	2	2006-01-06 12:25:53
+0048	1	2006-01-06 12:37:50
+0059	1	2006-01-06 12:37:50
+drop table t1;
+create table t1(a int, primary key (a));
+insert into t1 values (10);
+create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b));
+insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989');
+explain SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
+ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
+             ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
+1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
+2	SUBQUERY	t2	range	b	b	40	NULL	2	Using where
+SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
+ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
+            ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10;
+a	a	b
+10	3	35989
+explain SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
+ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
+            ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
+1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
+2	SUBQUERY	t2	range	b	b	40	NULL	2	Using index condition
+SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
+ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
+            ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10;
+a	a	b
+10	1	359
+drop table t1,t2;
+CREATE TABLE t1 (
+field1 int NOT NULL,
+field2 int NOT NULL,
+field3 int NOT NULL,
+PRIMARY KEY  (field1,field2,field3)
+);
+CREATE TABLE t2 (
+fieldA int NOT NULL,
+fieldB int NOT NULL,
+PRIMARY KEY  (fieldA,fieldB)
+);
+INSERT INTO t1 VALUES
+(1,1,1), (1,1,2), (1,2,1), (1,2,2), (1,2,3), (1,3,1);
+INSERT INTO t2 VALUES (1,1), (1,2), (1,3);
+SELECT field1, field2, COUNT(*)
+FROM t1 GROUP BY field1, field2;
+field1	field2	COUNT(*)
+1	1	2
+1	2	3
+1	3	1
+SELECT field1, field2
+FROM  t1
+GROUP BY field1, field2
+HAVING COUNT(*) >= ALL (SELECT fieldB
+FROM t2 WHERE fieldA = field1);
+field1	field2
+1	2
+SELECT field1, field2
+FROM  t1
+GROUP BY field1, field2
+HAVING COUNT(*) < ANY (SELECT fieldB
+FROM t2 WHERE fieldA = field1);
+field1	field2
+1	1
+1	3
+DROP TABLE t1, t2;
+CREATE TABLE t1(a int, INDEX (a));
+INSERT INTO t1 VALUES (1), (3), (5), (7);
+INSERT INTO t1 VALUES (NULL);
+CREATE TABLE t2(a int);
+INSERT INTO t2 VALUES (1),(2),(3);
+EXPLAIN SELECT a, a IN (SELECT a FROM t1) FROM t2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	
+2	SUBQUERY	t1	index_subquery	a	a	5	func	2	Using index; Full scan on NULL key
+SELECT a, a IN (SELECT a FROM t1) FROM t2;
+a	a IN (SELECT a FROM t1)
+1	1
+2	NULL
+3	1
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a DATETIME);
+INSERT INTO t1 VALUES ('1998-09-23'), ('2003-03-25');
+CREATE TABLE t2 AS SELECT
+(SELECT a FROM t1 WHERE a < '2000-01-01') AS sub_a
+FROM t1 WHERE a > '2000-01-01';
+SHOW CREATE TABLE t2;
+Table	Create Table
+t2	CREATE TABLE `t2` (
+  `sub_a` datetime DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+CREATE TABLE t3 AS (SELECT a FROM t1 WHERE a < '2000-01-01') UNION (SELECT a FROM t1 WHERE a > '2000-01-01');
+SHOW CREATE TABLE t3;
+Table	Create Table
+t3	CREATE TABLE `t3` (
+  `a` datetime DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+DROP TABLE t1,t2,t3;
+CREATE TABLE t1 (a int);
+INSERT INTO t1 VALUES (1), (2);
+SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) > 0;
+a
+SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) IS NULL;
+a
+1
+2
+EXPLAIN SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) IS NULL;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+DROP TABLE t1;
+CREATE TABLE t1 (a int);
+INSERT INTO t1 VALUES (2), (4), (1), (3);
+CREATE TABLE t2 (b int, c int);
+INSERT INTO t2 VALUES
+(2,1), (1,3), (2,1), (4,4), (2,2), (1,4);
+SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 2 );
+a
+2
+4
+1
+3
+SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 1);
+ERROR 21000: Subquery returns more than 1 row
+SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 2), a;
+a
+1
+2
+3
+4
+SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 1), a;
+ERROR 21000: Subquery returns more than 1 row
+SELECT b, MAX(c) FROM t2 GROUP BY b, (SELECT c FROM t2 WHERE b > 2);
+b	MAX(c)
+1	4
+2	2
+4	4
+SELECT b, MAX(c) FROM t2 GROUP BY b, (SELECT c FROM t2 WHERE b > 1);
+ERROR 21000: Subquery returns more than 1 row
+SELECT a FROM t1 GROUP BY a
+HAVING IFNULL((SELECT b FROM t2 WHERE b > 2),
+(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3;
+a
+1
+2
+3
+4
+SELECT a FROM t1 GROUP BY a
+HAVING IFNULL((SELECT b FROM t2 WHERE b > 1),
+(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3;
+ERROR 21000: Subquery returns more than 1 row
+SELECT a FROM t1 GROUP BY a
+HAVING IFNULL((SELECT b FROM t2 WHERE b > 4),
+(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3;
+a
+4
+SELECT a FROM t1 GROUP BY a
+HAVING IFNULL((SELECT b FROM t2 WHERE b > 4),
+(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b)) > 3;
+ERROR 21000: Subquery returns more than 1 row
+SELECT a FROM t1
+ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 2),
+(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b));
+a
+1
+2
+3
+4
+SELECT a FROM t1
+ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 1),
+(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b));
+ERROR 21000: Subquery returns more than 1 row
+SELECT a FROM t1
+ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 4),
+(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b));
+a
+1
+2
+3
+4
+SELECT a FROM t1
+ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 4),
+(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b));
+ERROR 21000: Subquery returns more than 1 row
+DROP TABLE t1,t2;
+create table t1 (df decimal(5,1));
+insert into t1 values(1.1);
+insert into t1 values(2.2);
+select * from t1 where df <= all (select avg(df) from t1 group by df);
+df
+1.1
+select * from t1 where df >= all (select avg(df) from t1 group by df);
+df
+2.2
+drop table t1;
+create table t1 (df decimal(5,1));
+insert into t1 values(1.1);
+select 1.1 * exists(select * from t1);
+1.1 * exists(select * from t1)
+1.1
+drop table t1;
+CREATE TABLE t1 (
+grp int(11) default NULL,
+a decimal(10,2) default NULL);
+insert into t1 values (1, 1), (2, 2), (2, 3), (3, 4), (3, 5), (3, 6), (NULL, NULL);
+select * from t1;
+grp	a
+1	1.00
+2	2.00
+2	3.00
+3	4.00
+3	5.00
+3	6.00
+NULL	NULL
+select min(a) from t1 group by grp;
+min(a)
+NULL
+1.00
+2.00
+4.00
+drop table t1;
+CREATE table t1 ( c1 integer );
+INSERT INTO t1 VALUES ( 1 );
+INSERT INTO t1 VALUES ( 2 );
+INSERT INTO t1 VALUES ( 3 );
+CREATE TABLE t2 ( c2 integer );
+INSERT INTO t2 VALUES ( 1 );
+INSERT INTO t2 VALUES ( 4 );
+INSERT INTO t2 VALUES ( 5 );
+SELECT * FROM t1 LEFT JOIN t2 ON c1 = c2 WHERE c2 IN (1);
+c1	c2
+1	1
+SELECT * FROM t1 LEFT JOIN t2 ON c1 = c2
+WHERE c2 IN ( SELECT c2 FROM t2 WHERE c2 IN ( 1 ) );
+c1	c2
+1	1
+DROP TABLE t1,t2;
+CREATE TABLE t1 ( c1 integer );
+INSERT INTO t1 VALUES ( 1 );
+INSERT INTO t1 VALUES ( 2 );
+INSERT INTO t1 VALUES ( 3 );
+INSERT INTO t1 VALUES ( 6 );
+CREATE TABLE t2 ( c2 integer );
+INSERT INTO t2 VALUES ( 1 );
+INSERT INTO t2 VALUES ( 4 );
+INSERT INTO t2 VALUES ( 5 );
+INSERT INTO t2 VALUES ( 6 );
+CREATE TABLE t3 ( c3 integer );
+INSERT INTO t3 VALUES ( 7 );
+INSERT INTO t3 VALUES ( 8 );
+SELECT c1,c2 FROM t1 LEFT JOIN t2 ON c1 = c2
+WHERE EXISTS (SELECT c3 FROM t3 WHERE c2 IS NULL );
+c1	c2
+2	NULL
+3	NULL
+DROP TABLE t1,t2,t3;
+CREATE TABLE `t1` (
+`itemid` bigint(20) unsigned NOT NULL auto_increment,
+`sessionid` bigint(20) unsigned default NULL,
+`time` int(10) unsigned NOT NULL default '0',
+`type` set('A','D','E','F','G','I','L','N','U') collate latin1_general_ci NOT
+NULL default '',
+`data` text collate latin1_general_ci NOT NULL,
+PRIMARY KEY  (`itemid`)
+) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;
+INSERT INTO `t1` VALUES (1, 1, 1, 'D', '');
+CREATE TABLE `t2` (
+`sessionid` bigint(20) unsigned NOT NULL auto_increment,
+`pid` int(10) unsigned NOT NULL default '0',
+`date` int(10) unsigned NOT NULL default '0',
+`ip` varchar(15) collate latin1_general_ci NOT NULL default '',
+PRIMARY KEY  (`sessionid`)
+) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;
+INSERT INTO `t2` VALUES (1, 1, 1, '10.10.10.1');
+SELECT s.ip, count( e.itemid ) FROM `t1` e JOIN t2 s ON s.sessionid = e.sessionid WHERE e.sessionid = ( SELECT sessionid FROM t2 ORDER BY sessionid DESC LIMIT 1 ) GROUP BY s.ip HAVING count( e.itemid ) >0 LIMIT 0 , 30;
+ip	count( e.itemid )
+10.10.10.1	1
+drop tables t1,t2;
+CREATE TABLE t1 (EMPNUM   CHAR(3));
+CREATE TABLE t2 (EMPNUM   CHAR(3) );
+INSERT INTO t1 VALUES ('E1'),('E2');
+INSERT INTO t2 VALUES ('E1');
+DELETE FROM t1
+WHERE t1.EMPNUM NOT IN
+(SELECT t2.EMPNUM
+FROM t2
+WHERE t1.EMPNUM = t2.EMPNUM);
+select * from t1;
+EMPNUM
+E1
+DROP TABLE t1,t2;
+CREATE TABLE t1(select_id BIGINT, values_id BIGINT);
+INSERT INTO t1 VALUES (1, 1);
+CREATE TABLE t2 (select_id BIGINT, values_id BIGINT,
+PRIMARY KEY(select_id,values_id));
+INSERT INTO t2 VALUES (0, 1), (0, 2), (0, 3), (1, 5);
+SELECT values_id FROM t1
+WHERE values_id IN (SELECT values_id FROM t2
+WHERE select_id IN (1, 0));
+values_id
+1
+SELECT values_id FROM t1
+WHERE values_id IN (SELECT values_id FROM t2
+WHERE select_id BETWEEN 0 AND 1);
+values_id
+1
+SELECT values_id FROM t1
+WHERE values_id IN (SELECT values_id FROM t2
+WHERE select_id = 0 OR select_id = 1);
+values_id
+1
+DROP TABLE t1, t2;
+create table t1 (fld enum('0','1'));
+insert into t1 values ('1');
+select * from (select max(fld) from t1) as foo;
+max(fld)
+1
+drop table t1;
+CREATE TABLE t1 (a int, b int);
+CREATE TABLE t2 (c int, d int);
+CREATE TABLE t3 (e int);
+INSERT INTO t1 VALUES
+(1,10), (2,10), (1,20), (2,20), (3,20), (2,30), (4,40);
+INSERT INTO t2 VALUES
+(2,10), (2,20), (4,10), (5,10), (3,20), (2,40);
+INSERT INTO t3 VALUES (10), (30), (10), (20) ;
+SELECT a, MAX(b), MIN(b) FROM t1 GROUP BY a;
+a	MAX(b)	MIN(b)
+1	20	10
+2	30	10
+3	20	20
+4	40	40
+SELECT * FROM t2;
+c	d
+2	10
+2	20
+4	10
+5	10
+3	20
+2	40
+SELECT * FROM t3;
+e
+10
+30
+10
+20
+SELECT a FROM t1 GROUP BY a
+HAVING a IN (SELECT c FROM t2 WHERE MAX(b)>20);
+a
+2
+4
+SELECT a FROM t1 GROUP BY a
+HAVING a IN (SELECT c FROM t2 WHERE MAX(b)<d);
+a
+2
+SELECT a FROM t1 GROUP BY a
+HAVING a IN (SELECT c FROM t2 WHERE MAX(b)>d);
+a
+2
+4
+SELECT a FROM t1 GROUP BY a
+HAVING a IN (SELECT c FROM t2
+WHERE d >= SOME(SELECT e FROM t3 WHERE MAX(b)=e));
+a
+2
+3
+SELECT a FROM t1 GROUP BY a
+HAVING a IN (SELECT c FROM t2
+WHERE  EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e <= d));
+a
+2
+3
+SELECT a FROM t1 GROUP BY a
+HAVING a IN (SELECT c FROM t2
+WHERE d > SOME(SELECT e FROM t3 WHERE MAX(b)=e));
+a
+2
+SELECT a FROM t1 GROUP BY a
+HAVING a IN (SELECT c FROM t2
+WHERE  EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e < d));
+a
+2
+SELECT a FROM t1 GROUP BY a
+HAVING a IN (SELECT c FROM t2
+WHERE MIN(b) < d AND
+EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e <= d));
+a
+2
+SELECT a, SUM(a) FROM t1 GROUP BY a;
+a	SUM(a)
+1	2
+2	6
+3	3
+4	4
+SELECT a FROM t1
+WHERE EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) = c) GROUP BY a;
+a
+3
+4
+SELECT a FROM t1 GROUP BY a
+HAVING EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) = c);
+a
+1
+3
+4
+SELECT a FROM t1
+WHERE a < 3 AND
+EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) != c) GROUP BY a;
+a
+1
+2
+SELECT a FROM t1
+WHERE a < 3 AND
+EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) != c);
+a
+1
+2
+1
+2
+2
+SELECT t1.a FROM t1 GROUP BY t1.a
+HAVING t1.a < ALL(SELECT t2.c FROM t2 GROUP BY t2.c
+HAVING EXISTS(SELECT t3.e FROM t3 GROUP BY t3.e
+HAVING SUM(t1.a+t2.c) < t3.e/4));
+a
+1
+2
+SELECT t1.a FROM t1 GROUP BY t1.a
+HAVING t1.a > ALL(SELECT t2.c FROM t2
+WHERE EXISTS(SELECT t3.e FROM t3 GROUP BY t3.e
+HAVING SUM(t1.a+t2.c) < t3.e/4));
+a
+4
+SELECT t1.a FROM t1 GROUP BY t1.a
+HAVING t1.a > ALL(SELECT t2.c FROM t2
+WHERE EXISTS(SELECT t3.e FROM t3
+WHERE SUM(t1.a+t2.c) < t3.e/4));
+ERROR HY000: Invalid use of group function
+SELECT t1.a from t1 GROUP BY t1.a HAVING AVG(SUM(t1.b)) > 20;
+ERROR HY000: Invalid use of group function
+SELECT t1.a FROM t1 GROUP BY t1.a
+HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c
+HAVING AVG(t2.c+SUM(t1.b)) > 20);
+a
+2
+3
+4
+SELECT t1.a FROM t1 GROUP BY t1.a
+HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c
+HAVING AVG(SUM(t1.b)) > 20);
+a
+2
+4
+SELECT t1.a, SUM(b) AS sum  FROM t1 GROUP BY t1.a
+HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c
+HAVING t2.c+sum > 20);
+a	sum
+2	60
+3	20
+4	40
+DROP TABLE t1,t2,t3;
+CREATE TABLE t1 (a varchar(5), b varchar(10));
+INSERT INTO t1 VALUES
+('AAA', 5), ('BBB', 4), ('BBB', 1), ('CCC', 2),
+('CCC', 7), ('AAA', 2), ('AAA', 4), ('BBB', 3), ('AAA', 8);
+SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
+a	b
+BBB	4
+CCC	7
+AAA	8
+EXPLAIN
+SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	9	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	21	test.t1.a,test.t1.b	1	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	9	Using temporary
+ALTER TABLE t1 ADD INDEX(a);
+SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
+a	b
+BBB	4
+CCC	7
+AAA	8
+EXPLAIN
+SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	a	NULL	NULL	NULL	9	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	21	test.t1.a,test.t1.b	1	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	9	Using temporary
+DROP TABLE t1;
+create table t1( f1 int,f2 int);
+insert into t1 values (1,1),(2,2);
+select tt.t from (select 'crash1' as t, f2 from t1) as tt left join t1 on tt.t = 'crash2' and tt.f2 = t1.f2 where tt.t = 'crash1';
+t
+crash1
+crash1
+drop table t1;
+create table t1 (c int, key(c));
+insert into t1 values (1142477582), (1142455969);
+create table t2 (a int, b int);
+insert into t2 values (2, 1), (1, 0);
+delete from t1 where c <= 1140006215 and (select b from t2 where a = 2) = 1;
+drop table t1, t2;
+CREATE TABLE t1 (a INT);
+CREATE VIEW v1 AS SELECT * FROM t1 WHERE no_such_column = ANY (SELECT 1);
+ERROR 42S22: Unknown column 'no_such_column' in 'where clause'
+CREATE VIEW v2 AS SELECT * FROM t1 WHERE no_such_column = (SELECT 1);
+ERROR 42S22: Unknown column 'no_such_column' in 'where clause'
+SELECT * FROM t1 WHERE no_such_column = ANY (SELECT 1);
+ERROR 42S22: Unknown column 'no_such_column' in 'IN/ALL/ANY subquery'
+DROP TABLE t1;
+create table t1 (i int, j bigint);
+insert into t1 values (1, 2), (2, 2), (3, 2);
+select * from (select min(i) from t1 where j=(select * from (select min(j) from t1) t2)) t3;
+min(i)
+1
+drop table t1;
+CREATE TABLE t1 (i BIGINT UNSIGNED);
+INSERT INTO t1 VALUES (10000000000000000000);
+INSERT INTO t1 VALUES (1);
+CREATE TABLE t2 (i BIGINT UNSIGNED);
+INSERT INTO t2 VALUES (10000000000000000000);
+INSERT INTO t2 VALUES (1);
+/* simple test */
+SELECT t1.i FROM t1 JOIN t2 ON t1.i = t2.i;
+i
+10000000000000000000
+1
+/* subquery test */
+SELECT t1.i FROM t1 WHERE t1.i = (SELECT MAX(i) FROM t2);
+i
+10000000000000000000
+/* subquery test with cast*/
+SELECT t1.i FROM t1 WHERE t1.i = CAST((SELECT MAX(i) FROM t2) AS UNSIGNED);
+i
+10000000000000000000
+DROP TABLE t1;
+DROP TABLE t2;
+CREATE TABLE t1 (
+id bigint(20) unsigned NOT NULL auto_increment,
+name varchar(255) NOT NULL,
+PRIMARY KEY  (id)
+);
+INSERT INTO t1 VALUES
+(1, 'Balazs'), (2, 'Joe'), (3, 'Frank');
+CREATE TABLE t2 (
+id bigint(20) unsigned NOT NULL auto_increment,
+mid bigint(20) unsigned NOT NULL,
+date date NOT NULL,
+PRIMARY KEY  (id)
+);
+INSERT INTO t2 VALUES
+(1, 1, '2006-03-30'), (2, 2, '2006-04-06'), (3, 3, '2006-04-13'),
+(4, 2, '2006-04-20'), (5, 1, '2006-05-01');
+SELECT *,
+(SELECT date FROM t2 WHERE mid = t1.id
+ORDER BY date DESC LIMIT 0, 1) AS date_last,
+(SELECT date FROM t2 WHERE mid = t1.id
+ORDER BY date DESC LIMIT 3, 1) AS date_next_to_last
+FROM t1;
+id	name	date_last	date_next_to_last
+1	Balazs	2006-05-01	NULL
+2	Joe	2006-04-20	NULL
+3	Frank	2006-04-13	NULL
+SELECT *,
+(SELECT COUNT(*) FROM t2 WHERE mid = t1.id
+ORDER BY date DESC LIMIT 1, 1) AS date_count
+FROM t1;
+id	name	date_count
+1	Balazs	NULL
+2	Joe	NULL
+3	Frank	NULL
+SELECT *,
+(SELECT date FROM t2 WHERE mid = t1.id
+ORDER BY date DESC LIMIT 0, 1) AS date_last,
+(SELECT date FROM t2 WHERE mid = t1.id
+ORDER BY date DESC LIMIT 1, 1) AS date_next_to_last
+FROM t1;
+id	name	date_last	date_next_to_last
+1	Balazs	2006-05-01	2006-03-30
+2	Joe	2006-04-20	2006-04-06
+3	Frank	2006-04-13	NULL
+DROP TABLE t1,t2;
+CREATE TABLE t1 (
+i1 int(11) NOT NULL default '0',
+i2 int(11) NOT NULL default '0',
+t datetime NOT NULL default '0000-00-00 00:00:00',
+PRIMARY KEY  (i1,i2,t)
+);
+INSERT INTO t1 VALUES
+(24,1,'2005-03-03 16:31:31'),(24,1,'2005-05-27 12:40:07'),
+(24,1,'2005-05-27 12:40:08'),(24,1,'2005-05-27 12:40:10'),
+(24,1,'2005-05-27 12:40:25'),(24,1,'2005-05-27 12:40:30'),
+(24,2,'2005-03-03 13:43:05'),(24,2,'2005-03-03 16:23:31'),
+(24,2,'2005-03-03 16:31:30'),(24,2,'2005-05-27 12:37:02'),
+(24,2,'2005-05-27 12:40:06');
+CREATE TABLE t2 (
+i1 int(11) NOT NULL default '0',
+i2 int(11) NOT NULL default '0',
+t datetime default NULL,
+PRIMARY KEY  (i1)
+);
+INSERT INTO t2 VALUES (24,1,'2006-06-20 12:29:40');
+EXPLAIN
+SELECT * FROM t1,t2
+WHERE t1.t = (SELECT t1.t FROM t1
+WHERE t1.t < t2.t  AND t1.i2=1 AND t2.i1=t1.i1
+ORDER BY t1.t DESC LIMIT 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	system	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	t1	index	NULL	PRIMARY	16	NULL	11	Using where; Using index
+2	SUBQUERY	t1	range	PRIMARY	PRIMARY	16	NULL	5	Using where; Using index
+SELECT * FROM t1,t2
+WHERE t1.t = (SELECT t1.t FROM t1
+WHERE t1.t < t2.t  AND t1.i2=1 AND t2.i1=t1.i1
+ORDER BY t1.t DESC LIMIT 1);
+i1	i2	t	i1	i2	t
+24	1	2005-05-27 12:40:30	24	1	2006-06-20 12:29:40
+DROP TABLE t1, t2;
+CREATE TABLE t1 (i INT);
+(SELECT i FROM t1) UNION (SELECT i FROM t1);
+i
+SELECT sql_no_cache * FROM t1 WHERE NOT EXISTS
+(
+(SELECT i FROM t1) UNION
+(SELECT i FROM t1)
+);
+i
+SELECT * FROM t1
+WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1)));
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION (SELECT i FROM t1)))' at line 2
+explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12))
+from t1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'union (select t12.i from t1 t12))
+from t1' at line 1
+explain select * from t1 where not exists
+((select t11.i from t1 t11) union (select t12.i from t1 t12));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	0	const row not found
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
+DROP TABLE t1;
+CREATE TABLE t1 (a VARCHAR(250), b INT auto_increment, PRIMARY KEY (b));
+insert into t1 (a) values (FLOOR(rand() * 100));
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+insert into t1 (a) select FLOOR(rand() * 100) from t1;
+SELECT a,
+(SELECT REPEAT(' ',250) FROM t1 i1
+WHERE i1.b=t1.a ORDER BY RAND() LIMIT 1) AS a
+FROM t1 ORDER BY a LIMIT 5;
+a	a
+0	NULL
+0	NULL
+0	NULL
+0	NULL
+0	NULL
+DROP TABLE t1;
+CREATE TABLE t1 (a INT, b INT);
+CREATE TABLE t2 (a INT);
+INSERT INTO t2 values (1);
+INSERT INTO t1 VALUES (1,1),(1,2),(2,3),(3,4);
+SELECT (SELECT COUNT(DISTINCT t1.b) from t2) FROM t1 GROUP BY t1.a;
+(SELECT COUNT(DISTINCT t1.b) from t2)
+2
+1
+1
+SELECT (SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3)
+FROM t1 GROUP BY t1.a;
+(SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3)
+2
+1
+1
+SELECT COUNT(DISTINCT t1.b), (SELECT COUNT(DISTINCT t1.b)) FROM t1 GROUP BY t1.a;
+COUNT(DISTINCT t1.b)	(SELECT COUNT(DISTINCT t1.b))
+2	2
+1	1
+1	1
+SELECT COUNT(DISTINCT t1.b),
+(SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3)
+FROM t1 GROUP BY t1.a;
+COUNT(DISTINCT t1.b)	(SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3)
+2	2
+1	1
+1	1
+SELECT (
+SELECT (
+SELECT COUNT(DISTINCT t1.b)
+)
+)
+FROM t1 GROUP BY t1.a;
+(
+SELECT (
+SELECT COUNT(DISTINCT t1.b)
+)
+)
+2
+1
+1
+SELECT (
+SELECT (
+SELECT (
+SELECT COUNT(DISTINCT t1.b)
+)
+)
+FROM t1 GROUP BY t1.a LIMIT 1)
+FROM t1 t2
+GROUP BY t2.a;
+(
+SELECT (
+SELECT (
+SELECT COUNT(DISTINCT t1.b)
+)
+)
+FROM t1 GROUP BY t1.a LIMIT 1)
+2
+2
+2
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a int, b int, PRIMARY KEY (b));
+CREATE TABLE t2 (x int auto_increment, y int, z int,
+PRIMARY KEY (x), FOREIGN KEY (y) REFERENCES t1 (b));
+create table t3 (a int);
+insert into t3 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+insert into t1 select RAND()*1000, A.a + 10*(B.a+10*(C.a+10*D.a))
+from t3 A, t3 B, t3 C, t3 D where D.a<3;
+insert into t2(y,z) select t1.b, RAND()*1000 from t1, t3;
+SET SESSION sort_buffer_size = 32 * 1024;
+SELECT SQL_NO_CACHE COUNT(*)
+FROM (SELECT  a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c
+FROM t1) t;
+COUNT(*)
+3000
+SET SESSION sort_buffer_size = 8 * 1024 * 1024;
+SELECT SQL_NO_CACHE COUNT(*)
+FROM (SELECT  a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c
+FROM t1) t;
+COUNT(*)
+3000
+DROP TABLE t1,t2,t3;
+CREATE TABLE t1 (id char(4) PRIMARY KEY, c int);
+CREATE TABLE t2 (c int);
+INSERT INTO t1 VALUES ('aa', 1);
+INSERT INTO t2 VALUES (1);
+SELECT * FROM t1
+WHERE EXISTS (SELECT c FROM t2 WHERE c=1
+UNION
+SELECT c from t2 WHERE c=t1.c);
+id	c
+aa	1
+INSERT INTO t1 VALUES ('bb', 2), ('cc', 3), ('dd',1);
+SELECT * FROM t1
+WHERE EXISTS (SELECT c FROM t2 WHERE c=1
+UNION
+SELECT c from t2 WHERE c=t1.c);
+id	c
+aa	1
+bb	2
+cc	3
+dd	1
+INSERT INTO t2 VALUES (2);
+CREATE TABLE t3 (c int);
+INSERT INTO t3 VALUES (1);
+SELECT * FROM t1
+WHERE EXISTS (SELECT t2.c FROM t2 JOIN t3 ON t2.c=t3.c WHERE t2.c=1
+UNION
+SELECT c from t2 WHERE c=t1.c);
+id	c
+aa	1
+bb	2
+cc	3
+dd	1
+DROP TABLE t1,t2,t3;
+CREATE TABLE t1(f1 int);
+CREATE TABLE t2(f2 int, f21 int, f3 timestamp);
+INSERT INTO t1 VALUES (1),(1),(2),(2);
+INSERT INTO t2 VALUES (1,1,"2004-02-29 11:11:11"), (2,2,"2004-02-29 11:11:11");
+SELECT ((SELECT f2 FROM t2 WHERE f21=f1 LIMIT 1) * COUNT(f1)) AS sq FROM t1 GROUP BY f1;
+sq
+2
+4
+SELECT (SELECT SUM(1) FROM t2 ttt GROUP BY t2.f3 LIMIT 1) AS tt FROM t2;
+tt
+2
+2
+PREPARE stmt1 FROM 'SELECT ((SELECT f2 FROM t2 WHERE f21=f1 LIMIT 1) * COUNT(f1)) AS sq FROM t1 GROUP BY f1';
+EXECUTE stmt1;
+sq
+2
+4
+EXECUTE stmt1;
+sq
+2
+4
+DEALLOCATE PREPARE stmt1;
+SELECT f2, AVG(f21),
+(SELECT t.f3 FROM t2 AS t WHERE t2.f2=t.f2 AND t.f3=MAX(t2.f3)) AS test
+FROM t2 GROUP BY f2;
+f2	AVG(f21)	test
+1	1.0000	2004-02-29 11:11:11
+2	2.0000	2004-02-29 11:11:11
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a int, b INT, c CHAR(10) NOT NULL);
+INSERT INTO t1 VALUES
+(1,1,'a'), (1,2,'b'), (1,3,'c'), (1,4,'d'), (1,5,'e'),
+(2,1,'f'), (2,2,'g'), (2,3,'h'), (3,4,'i'), (3,3,'j'),
+(3,2,'k'), (3,1,'l'), (1,9,'m');
+SELECT a, MAX(b),
+(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=MAX(t1.b)) AS test
+FROM t1 GROUP BY a;
+a	MAX(b)	test
+1	9	m
+2	3	h
+3	4	i
+DROP TABLE t1;
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+DROP TABLE IF EXISTS t1xt2;
+CREATE TABLE t1 (
+id_1 int(5) NOT NULL,
+t varchar(4) DEFAULT NULL
+);
+CREATE TABLE t2 (
+id_2 int(5) NOT NULL,
+t varchar(4) DEFAULT NULL
+);
+CREATE TABLE t1xt2 (
+id_1 int(5) NOT NULL,
+id_2 int(5) NOT NULL
+);
+INSERT INTO t1 VALUES (1, 'a'), (2, 'b'), (3, 'c'), (4, 'd');
+INSERT INTO t2 VALUES (2, 'bb'), (3, 'cc'), (4, 'dd'), (12, 'aa');
+INSERT INTO t1xt2 VALUES (2, 2), (3, 3), (4, 4);
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1));
+id_1
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)));
+id_1
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))));
+id_1
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1));
+id_1
+1
+2
+3
+4
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 where t1.id_1 = t1xt2.id_1)));
+id_1
+1
+2
+3
+4
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 where t1.id_1 = t1xt2.id_1))));
+id_1
+1
+2
+3
+4
+insert INTO t1xt2 VALUES (1, 12);
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1));
+id_1
+1
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)));
+id_1
+1
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))));
+id_1
+1
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1));
+id_1
+2
+3
+4
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)));
+id_1
+2
+3
+4
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))));
+id_1
+2
+3
+4
+insert INTO t1xt2 VALUES (2, 12);
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1));
+id_1
+1
+2
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)));
+id_1
+1
+2
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))));
+id_1
+1
+2
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1));
+id_1
+3
+4
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)));
+id_1
+3
+4
+SELECT DISTINCT t1.id_1 FROM t1 WHERE
+(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))));
+id_1
+3
+4
+DROP TABLE t1;
+DROP TABLE t2;
+DROP TABLE t1xt2;
+CREATE TABLE t1 (a int);
+INSERT INTO t1 VALUES (3), (1), (2);
+SELECT 'this is ' 'a test.' AS col1, a AS col2 FROM t1;
+col1	col2
+this is a test.	3
+this is a test.	1
+this is a test.	2
+SELECT * FROM (SELECT 'this is ' 'a test.' AS col1, a AS t2 FROM t1) t;
+col1	t2
+this is a test.	3
+this is a test.	1
+this is a test.	2
+DROP table t1;
+CREATE TABLE t1 (a int, b int);
+CREATE TABLE t2 (m int, n int);
+INSERT INTO t1 VALUES (2,2), (2,2), (3,3), (3,3), (3,3), (4,4);
+INSERT INTO t2 VALUES (1,11), (2,22), (3,32), (4,44), (4,44);
+SELECT COUNT(*), a,
+(SELECT m FROM t2 WHERE m = count(*) LIMIT 1)
+FROM t1 GROUP BY a;
+COUNT(*)	a	(SELECT m FROM t2 WHERE m = count(*) LIMIT 1)
+2	2	2
+3	3	3
+1	4	1
+SELECT COUNT(*), a,
+(SELECT MIN(m) FROM t2 WHERE m = count(*))
+FROM t1 GROUP BY a;
+COUNT(*)	a	(SELECT MIN(m) FROM t2 WHERE m = count(*))
+2	2	2
+3	3	3
+1	4	1
+SELECT COUNT(*), a
+FROM t1 GROUP BY a
+HAVING (SELECT MIN(m) FROM t2 WHERE m = count(*)) > 1;
+COUNT(*)	a
+2	2
+3	3
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a int, b int);
+CREATE TABLE t2 (m int, n int);
+INSERT INTO t1 VALUES (2,2), (2,2), (3,3), (3,3), (3,3), (4,4);
+INSERT INTO t2 VALUES (1,11), (2,22), (3,32), (4,44), (4,44);
+SELECT COUNT(*) c, a,
+(SELECT GROUP_CONCAT(COUNT(a)) FROM t2 WHERE m = a)
+FROM t1 GROUP BY a;
+c	a	(SELECT GROUP_CONCAT(COUNT(a)) FROM t2 WHERE m = a)
+2	2	2
+3	3	3
+1	4	1,1
+SELECT COUNT(*) c, a,
+(SELECT GROUP_CONCAT(COUNT(a)+1) FROM t2 WHERE m = a)
+FROM t1 GROUP BY a;
+c	a	(SELECT GROUP_CONCAT(COUNT(a)+1) FROM t2 WHERE m = a)
+2	2	3
+3	3	4
+1	4	2,2
+DROP table t1,t2;
+CREATE TABLE t1 (a int, b INT, d INT, c CHAR(10) NOT NULL, PRIMARY KEY (a, b));
+INSERT INTO t1 VALUES (1,1,0,'a'), (1,2,0,'b'), (1,3,0,'c'), (1,4,0,'d'),
+(1,5,0,'e'), (2,1,0,'f'), (2,2,0,'g'), (2,3,0,'h'), (3,4,0,'i'), (3,3,0,'j'),
+(3,2,0,'k'), (3,1,0,'l'), (1,9,0,'m'), (1,0,10,'n'), (2,0,5,'o'), (3,0,7,'p');
+SELECT a, MAX(b),
+(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=MAX(t1.b + 0)) as test
+FROM t1 GROUP BY a;
+a	MAX(b)	test
+1	9	m
+2	3	h
+3	4	i
+SELECT a x, MAX(b),
+(SELECT t.c FROM t1 AS t WHERE x=t.a AND t.b=MAX(t1.b + 0)) as test
+FROM t1 GROUP BY a;
+x	MAX(b)	test
+1	9	m
+2	3	h
+3	4	i
+SELECT a, AVG(b),
+(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=AVG(t1.b)) AS test
+FROM t1 WHERE t1.d=0 GROUP BY a;
+a	AVG(b)	test
+1	4.0000	d
+2	2.0000	g
+3	2.5000	NULL
+SELECT tt.a,
+(SELECT (SELECT c FROM t1 as t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a)
+LIMIT 1) FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1) as test
+FROM t1 as tt;
+a	test
+1	n
+1	n
+1	n
+1	n
+1	n
+1	n
+1	n
+2	o
+2	o
+2	o
+2	o
+3	p
+3	p
+3	p
+3	p
+3	p
+SELECT tt.a,
+(SELECT (SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a)
+LIMIT 1)
+FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1) as test
+FROM t1 as tt GROUP BY tt.a;
+a	test
+1	n
+2	o
+3	p
+SELECT tt.a, MAX(
+(SELECT (SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a)
+LIMIT 1)
+FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1)) as test
+FROM t1 as tt GROUP BY tt.a;
+a	test
+1	n
+2	o
+3	p
+DROP TABLE t1;
+CREATE TABLE t1 (a int, b int);
+INSERT INTO t1 VALUES (2,22),(1,11),(2,22);
+SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a;
+a
+1
+2
+SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a;
+a
+SELECT a FROM t1 t0
+WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a;
+a
+1
+2
+SET @@sql_mode='ansi';
+SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a;
+ERROR HY000: Invalid use of group function
+SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a;
+ERROR HY000: Invalid use of group function
+SELECT a FROM t1 t0
+WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a;
+ERROR HY000: Invalid use of group function
+SET @@sql_mode=default;
+DROP TABLE t1;
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 values (1),(1),(1),(1);
+CREATE TABLE t2 (x INT);
+INSERT INTO t1 values (1000),(1001),(1002);
+SELECT SUM( (SELECT COUNT(a) FROM t2) ) FROM t1;
+ERROR HY000: Invalid use of group function
+SELECT SUM( (SELECT SUM(COUNT(a)) FROM t2) ) FROM t1;
+ERROR HY000: Invalid use of group function
+SELECT COUNT(1) FROM DUAL;
+COUNT(1)
+1
+SELECT SUM( (SELECT AVG( (SELECT t1.a FROM t2) ) FROM DUAL) ) FROM t1;
+ERROR HY000: Invalid use of group function
+SELECT
+SUM( (SELECT AVG( (SELECT COUNT(*) FROM t1 t HAVING t1.a < 12) ) FROM t2) )
+FROM t1;
+ERROR HY000: Invalid use of group function
+SELECT t1.a as XXA,
+SUM( (SELECT AVG( (SELECT COUNT(*) FROM t1 t HAVING XXA < 12) ) FROM t2) )
+FROM t1;
+ERROR HY000: Invalid use of group function
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a int, b int, KEY (a));
+INSERT INTO t1 VALUES (1,1),(2,1);
+EXPLAIN SELECT 1 FROM t1 WHERE a = (SELECT COUNT(*) FROM t1 GROUP BY b);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ref	a	a	5	const	1	Using where; Using index
+2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using temporary; Using filesort
+DROP TABLE t1;
+CREATE TABLE t1 (id int NOT NULL, st CHAR(2), INDEX idx(id));
+INSERT INTO t1 VALUES
+(3,'FL'), (2,'GA'), (4,'FL'), (1,'GA'), (5,'NY'), (7,'FL'), (6,'NY');
+CREATE TABLE t2 (id int NOT NULL, INDEX idx(id));
+INSERT INTO t2 VALUES (7), (5), (1), (3);
+SELECT id, st FROM t1
+WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
+id	st
+3	FL
+1	GA
+7	FL
+SELECT id, st FROM t1
+WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
+GROUP BY id;
+id	st
+1	GA
+3	FL
+7	FL
+SELECT id, st FROM t1
+WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
+id	st
+2	GA
+4	FL
+SELECT id, st FROM t1
+WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
+GROUP BY id;
+id	st
+2	GA
+4	FL
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a int);
+INSERT INTO t1 VALUES (1), (2);
+EXPLAIN EXTENDED
+SELECT * FROM (SELECT count(*) FROM t1 GROUP BY a) as res;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using temporary; Using filesort
+Warnings:
+Note	1003	select `res`.`count(*)` AS `count(*)` from (select count(0) AS `count(*)` from `test`.`t1` group by `test`.`t1`.`a`) `res`
+DROP TABLE t1;
+CREATE TABLE t1 (
+a varchar(255) default NULL,
+b timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
+INDEX idx(a,b)
+);
+CREATE TABLE t2 (
+a varchar(255) default NULL
+);
+INSERT INTO t1 VALUES ('abcdefghijk','2007-05-07 06:00:24');
+INSERT INTO t1 SELECT * FROM t1;
+INSERT INTO t1 SELECT * FROM t1;
+INSERT INTO t1 SELECT * FROM t1;
+INSERT INTO t1 SELECT * FROM t1;
+INSERT INTO t1 SELECT * FROM t1;
+INSERT INTO t1 SELECT * FROM t1;
+INSERT INTO t1 SELECT * FROM t1;
+INSERT INTO t1 SELECT * FROM t1;
+INSERT INTO `t1` VALUES ('asdf','2007-02-08 01:11:26');
+INSERT INTO `t2` VALUES ('abcdefghijk');
+INSERT INTO `t2` VALUES ('asdf');
+SET session sort_buffer_size=8192;
+SELECT (SELECT 1 FROM  t1 WHERE t1.a=t2.a ORDER BY t1.b LIMIT 1) AS d1 FROM t2;
+d1
+1
+1
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a INTEGER, b INTEGER);
+CREATE TABLE t2 (x INTEGER);
+INSERT INTO t1 VALUES (1,11), (2,22), (2,22);
+INSERT INTO t2 VALUES (1), (2);
+SELECT a, COUNT(b), (SELECT COUNT(b) FROM t2) FROM t1 GROUP BY a;
+ERROR 21000: Subquery returns more than 1 row
+SELECT a, COUNT(b), (SELECT COUNT(b)+0 FROM t2) FROM t1 GROUP BY a;
+ERROR 21000: Subquery returns more than 1 row
+SELECT (SELECT SUM(t1.a)/AVG(t2.x) FROM t2) FROM t1;
+(SELECT SUM(t1.a)/AVG(t2.x) FROM t2)
+3.3333
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a INT, b INT);
+INSERT INTO t1 VALUES (1, 2), (1,3), (1,4), (2,1), (2,2);
+SELECT a1.a, COUNT(*) FROM t1 a1 WHERE a1.a = 1
+AND EXISTS( SELECT a2.a FROM t1 a2 WHERE a2.a = a1.a)
+GROUP BY a1.a;
+a	COUNT(*)
+1	3
+DROP TABLE t1;
+CREATE TABLE t1 (a INT);
+CREATE TABLE t2 (a INT);
+INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t2 VALUES (1),(2);
+SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=0) FROM t1;
+(SELECT SUM(t1.a) FROM t2 WHERE a=0)
+NULL
+SELECT (SELECT SUM(t1.a) FROM t2 WHERE a!=0) FROM t1;
+ERROR 21000: Subquery returns more than 1 row
+SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=1) FROM t1;
+(SELECT SUM(t1.a) FROM t2 WHERE a=1)
+3
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a1 INT, a2 INT);
+CREATE TABLE t2 (b1 INT, b2 INT);
+INSERT INTO t1 VALUES (100, 200);
+INSERT INTO t1 VALUES (101, 201);
+INSERT INTO t2 VALUES (101, 201);
+INSERT INTO t2 VALUES (103, 203);
+SELECT ((a1,a2) IN (SELECT * FROM t2 WHERE b2 > 0)) IS NULL FROM t1;
+((a1,a2) IN (SELECT * FROM t2 WHERE b2 > 0)) IS NULL
+0
+0
+DROP TABLE t1, t2;
+CREATE TABLE t1 (s1 BINARY(5), s2 VARBINARY(5));
+INSERT INTO t1 VALUES (0x41,0x41), (0x42,0x42), (0x43,0x43);
+SELECT s1, s2 FROM t1 WHERE s2 IN (SELECT s1 FROM t1);
+s1	s2
+SELECT s1, s2 FROM t1 WHERE (s2, 10) IN (SELECT s1, 10 FROM t1);
+s1	s2
+CREATE INDEX I1 ON t1 (s1);
+CREATE INDEX I2 ON t1 (s2);
+SELECT s1, s2 FROM t1 WHERE s2 IN (SELECT s1 FROM t1);
+s1	s2
+SELECT s1, s2 FROM t1 WHERE (s2, 10) IN (SELECT s1, 10 FROM t1);
+s1	s2
+TRUNCATE t1;
+INSERT INTO t1 VALUES (0x41,0x41);
+SELECT * FROM t1 WHERE s1 = (SELECT s2 FROM t1);
+s1	s2
+DROP TABLE t1;
+CREATE TABLE t1 (a1 VARBINARY(2) NOT NULL DEFAULT '0', PRIMARY KEY (a1));
+CREATE TABLE t2 (a2 BINARY(2) default '0', INDEX (a2));
+CREATE TABLE t3 (a3 BINARY(2) default '0');
+INSERT INTO t1 VALUES (1),(2),(3),(4);
+INSERT INTO t2 VALUES (1),(2),(3);
+INSERT INTO t3 VALUES (1),(2),(3);
+SELECT LEFT(t2.a2, 1) FROM t2,t3 WHERE t3.a3=t2.a2;
+LEFT(t2.a2, 1)
+1
+2
+3
+SELECT t1.a1, t1.a1 in (SELECT t2.a2 FROM t2,t3 WHERE t3.a3=t2.a2) FROM t1;
+a1	t1.a1 in (SELECT t2.a2 FROM t2,t3 WHERE t3.a3=t2.a2)
+1	0
+2	0
+3	0
+4	0
+DROP TABLE t1,t2,t3;
+CREATE TABLE t1 (a1 BINARY(3) PRIMARY KEY, b1 VARBINARY(3));
+CREATE TABLE t2 (a2 VARBINARY(3) PRIMARY KEY);
+CREATE TABLE t3 (a3 VARBINARY(3) PRIMARY KEY);
+INSERT INTO t1 VALUES (1,10), (2,20), (3,30), (4,40);
+INSERT INTO t2 VALUES (2), (3), (4), (5);
+INSERT INTO t3 VALUES (10), (20), (30);
+SELECT LEFT(t1.a1,1) FROM t1,t3 WHERE t1.b1=t3.a3;
+LEFT(t1.a1,1)
+1
+2
+3
+SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3);
+a2
+DROP TABLE t1, t2, t3;
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch='semijoin_with_cache=off';
+SET optimizer_switch='materialization=off';
+CREATE TABLE t1 (a CHAR(1), b VARCHAR(10));
+INSERT INTO t1 VALUES ('a', 'aa');
+INSERT INTO t1 VALUES ('a', 'aaa');
+SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1);
+a	b
+CREATE INDEX I1 ON t1 (a);
+CREATE INDEX I2 ON t1 (b);
+EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	I2	NULL	NULL	NULL	2	Using where
+1	PRIMARY	t1	ref	I1	I1	2	test.t1.b	2	Using where; Using index; FirstMatch(t1)
+SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1);
+a	b
+CREATE TABLE t2 (a VARCHAR(1), b VARCHAR(10));
+INSERT INTO t2 SELECT * FROM t1;
+CREATE INDEX I1 ON t2 (a);
+CREATE INDEX I2 ON t2 (b);
+EXPLAIN SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	ALL	I2	NULL	NULL	NULL	2	Using where
+1	PRIMARY	t2	ref	I1	I1	4	test.t2.b	2	Using where; Using index; FirstMatch(t2)
+SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2);
+a	b
+EXPLAIN
+SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	I2	NULL	NULL	NULL	2	Using where
+1	PRIMARY	t1	ref	I1	I1	2	test.t1.b	2	Using where; Using index; FirstMatch(t1)
+SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500);
+a	b
+DROP TABLE t1,t2;
+SET optimizer_switch= @save_optimizer_switch;
+CREATE TABLE t1(a INT, b INT);
+INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4);
+EXPLAIN
+SELECT a AS out_a, MIN(b) FROM t1
+WHERE b > (SELECT MIN(b) FROM t1 WHERE a = out_a)
+GROUP BY a;
+ERROR 42S22: Unknown column 'out_a' in 'where clause'
+SELECT a AS out_a, MIN(b) FROM t1
+WHERE b > (SELECT MIN(b) FROM t1 WHERE a = out_a)
+GROUP BY a;
+ERROR 42S22: Unknown column 'out_a' in 'where clause'
+EXPLAIN
+SELECT a AS out_a, MIN(b) FROM t1 t1_outer
+WHERE b > (SELECT MIN(b) FROM t1 WHERE a = t1_outer.a)
+GROUP BY a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1_outer	ALL	NULL	NULL	NULL	NULL	4	Using where; Using temporary; Using filesort
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	4	Using where
+SELECT a AS out_a, MIN(b) FROM t1 t1_outer
+WHERE b > (SELECT MIN(b) FROM t1 WHERE a = t1_outer.a)
+GROUP BY a;
+out_a	MIN(b)
+1	2
+2	4
+DROP TABLE t1;
+CREATE TABLE t1 (a INT);
+CREATE TABLE t2 (a INT);
+INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t2 VALUES (1),(2);
+SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
+2
+2
+2
+EXPLAIN EXTENDED
+SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1003	select 2 AS `2` from `test`.`t1` semi join (`test`.`t2`) where 1
+EXPLAIN EXTENDED
+SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
+(SELECT 1 FROM t2 WHERE t1.a = t2.a));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
+Warnings:
+Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
+Note	1276	Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1
+Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`))))
+DROP TABLE t1,t2;
+create table t0(a int);
+insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t1(f11 int, f12 int);
+create table t2(f21 int unsigned not null, f22 int, f23 varchar(10));
+insert into t1 values(1,1),(2,2), (3, 3);
+insert into t2
+select -1 , (@a:=(A.a + 10 * (B.a + 10 * (C.a+10*D.a))))/5000 + 1, @a
+from t0 A, t0 B, t0 C, t0 D;
+set session sort_buffer_size= 33*1024;
+select count(*) from t1 where f12 =
+(select f22 from t2 where f22 = f12 order by f21 desc, f22, f23 limit 1);
+count(*)
+3
+drop table t0,t1,t2;
+CREATE TABLE t4 (
+f7 varchar(32) collate utf8_bin NOT NULL default '',
+f10 varchar(32) collate utf8_bin default NULL,
+PRIMARY KEY  (f7)
+);
+INSERT INTO t4 VALUES(1,1), (2,null);
+CREATE TABLE t2 (
+f4 varchar(32) collate utf8_bin NOT NULL default '',
+f2 varchar(50) collate utf8_bin default NULL,
+f3 varchar(10) collate utf8_bin default NULL,
+PRIMARY KEY  (f4),
+UNIQUE KEY uk1 (f2)
+);
+INSERT INTO t2 VALUES(1,1,null), (2,2,null);
+CREATE TABLE t1 (
+f8 varchar(32) collate utf8_bin NOT NULL default '',
+f1 varchar(10) collate utf8_bin default NULL,
+f9 varchar(32) collate utf8_bin default NULL,
+PRIMARY KEY  (f8)
+);
+INSERT INTO t1 VALUES (1,'P',1), (2,'P',1), (3,'R',2);
+CREATE TABLE t3 (
+f6 varchar(32) collate utf8_bin NOT NULL default '',
+f5 varchar(50) collate utf8_bin default NULL,
+PRIMARY KEY (f6)
+);
+INSERT INTO t3 VALUES (1,null), (2,null);
+SELECT
+IF(t1.f1 = 'R', a1.f2, t2.f2) AS a4,
+IF(t1.f1 = 'R', a1.f3, t2.f3) AS f3,
+SUM(
+IF(
+(SELECT VPC.f2
+FROM t2 VPC, t4 a2, t2 a3
+WHERE
+VPC.f4 = a2.f10 AND a3.f2 = a4
+LIMIT 1) IS NULL,
+0,
+t3.f5
+)
+) AS a6
+FROM
+t2, t3, t1 JOIN t2 a1 ON t1.f9 = a1.f4
+GROUP BY a4;
+a4	f3	a6
+1	NULL	NULL
+2	NULL	NULL
+DROP TABLE t1, t2, t3, t4;
+create table t1 (a float(5,4) zerofill);
+create table t2 (a float(5,4),b float(2,0));
+select t1.a from t1 where
+t1.a= (select b from t2 limit 1) and not
+t1.a= (select a from t2 limit 1) ;
+a
+drop table t1, t2;
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (1),(2);
+SET @save_join_cache_level=@@join_cache_level;
+SET join_cache_level=0;
+EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using temporary
+Warnings:
+Note	1003	select 1 AS `1` from  <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`min(a)` = 1)
+EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using temporary
+Warnings:
+Note	1003	select 1 AS `1` from  <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`min(a)` = 1)
+SET join_cache_level=@save_join_cache_level;
+DROP TABLE t1;
+#
+# Bug#45061: Incorrectly market field caused wrong result.
+#
+CREATE TABLE `C` (
+`int_nokey` int(11) NOT NULL,
+`int_key` int(11) NOT NULL,
+KEY `int_key` (`int_key`)
+);
+INSERT INTO `C` VALUES (9,9), (0,0), (8,6), (3,6), (7,6), (0,4),
+(1,7), (9,4), (0,8), (9,4), (0,7), (5,5), (0,0), (8,5), (8,7),
+(5,2), (1,8), (7,0), (0,9), (9,5);
+SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`);
+int_nokey	int_key
+9	9
+0	0
+5	5
+0	0
+EXPLAIN EXTENDED SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	C	ALL	NULL	NULL	NULL	NULL	20	100.00	Using where
+DROP TABLE C;
+# End of test for bug#45061.
+#
+# Bug #46749: Segfault in add_key_fields() with outer subquery level 
+#   field references
+#
+CREATE TABLE t1 (
+a int,
+b int,
+UNIQUE (a), KEY (b)
+);
+INSERT INTO t1 VALUES (1,1), (2,1);
+CREATE TABLE st1 like t1;
+INSERT INTO st1 VALUES (1,1), (2,1);
+CREATE TABLE st2 like t1;
+INSERT INTO st2 VALUES (1,1), (2,1);
+EXPLAIN
+SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
+FROM t1 
+WHERE a = 230;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
+FROM t1 
+WHERE a = 230;
+MAX(b)	(SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
+NULL	NULL
+DROP TABLE t1, st1, st2;
+#
+# Bug #48709: Assertion failed in sql_select.cc:11782: 
+#   int join_read_key(JOIN_TAB*)
+#
+CREATE TABLE t1 (pk int PRIMARY KEY, int_key int);
+INSERT INTO t1 VALUES (10,1), (14,1);
+CREATE TABLE t2 (pk int PRIMARY KEY, int_key int);
+INSERT INTO t2 VALUES (3,3), (5,NULL), (7,3);
+# should have eq_ref for t1
+EXPLAIN
+SELECT * FROM t2 outr
+WHERE outr.int_key NOT IN (SELECT t1.pk FROM t1, t2)  
+ORDER BY outr.pk;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+x	x	outr	ALL	x	x	x	x	x	x
+x	x	t1	eq_ref	x	x	x	x	x	x
+x	x	t2	index	x	x	x	x	x	x
+# should not crash on debug binaries
+SELECT * FROM t2 outr
+WHERE outr.int_key NOT IN (SELECT t1.pk FROM t1, t2)  
+ORDER BY outr.pk;
+pk	int_key
+3	3
+7	3
+DROP TABLE t1,t2;
+#
+# Bug#12329653 
+# EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY
+#
+CREATE TABLE t1(a1 int);
+INSERT INTO t1 VALUES (1),(2);
+SELECT @@session.sql_mode INTO @old_sql_mode;
+SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
+EXPLAIN EXTENDED
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+Warnings:
+Note	1003	select 1 AS `1` from `test`.`t1` where 1
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1);
+1
+1
+1
+PREPARE stmt FROM 
+'SELECT 1 UNION ALL 
+SELECT 1 FROM t1
+ORDER BY
+(SELECT 1 FROM t1 AS t1_0  
+  WHERE 1 < SOME (SELECT a1 FROM t1)
+)' ;
+EXECUTE stmt ;
+ERROR 21000: Subquery returns more than 1 row
+EXECUTE stmt ;
+ERROR 21000: Subquery returns more than 1 row
+SET SESSION sql_mode=@old_sql_mode;
+DEALLOCATE PREPARE stmt;
+DROP TABLE t1;
+#
+# Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER
+#
+CREATE TABLE t1(a1 int);
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2(a1 int);
+INSERT INTO t2 VALUES (3);
+SELECT @@session.sql_mode INTO @old_sql_mode;
+SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT 2 FROM t2);
+1
+1
+1
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT 2.0 FROM t2);
+1
+1
+1
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT 'a' FROM t2);
+1
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t2);
+1
+1
+1
+SET SESSION sql_mode=@old_sql_mode;
+DROP TABLE t1, t2;
+#
+# Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER
+#
+create table t2(i int);
+insert into t2 values(0);
+SELECT @@session.sql_mode INTO @old_sql_mode;
+SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
+CREATE VIEW v1 AS  
+SELECT 'f' FROM t2 UNION SELECT 'x' FROM t2
+;
+CREATE TABLE t1 (
+pk int NOT NULL,
+col_varchar_key varchar(1) DEFAULT NULL,
+PRIMARY KEY (pk),
+KEY col_varchar_key (col_varchar_key)
+);
+SELECT t1.pk
+FROM t1
+WHERE t1.col_varchar_key < ALL ( SELECT * FROM v1 )
+;
+pk
+SET SESSION sql_mode=@old_sql_mode;
+drop table t2, t1;
+drop view v1;
+End of 5.0 tests.
+create table t_out (subcase char(3),
+a1 char(2), b1 char(2), c1 char(2));
+create table t_in  (a2 char(2), b2 char(2), c2 char(2));
+insert into t_out values ('A.1','2a', NULL, '2a');
+insert into t_out values ('A.3', '2a', NULL, '2a');
+insert into t_out values ('A.4', '2a', NULL, 'xx');
+insert into t_out values ('B.1', '2a', '2a', '2a');
+insert into t_out values ('B.2', '2a', '2a', '2a');
+insert into t_out values ('B.3', '3a', 'xx', '3a');
+insert into t_out values ('B.4', 'xx', '3a', '3a');
+insert into t_in values ('1a', '1a', '1a');
+insert into t_in values ('2a', '2a', '2a');
+insert into t_in values (NULL, '2a', '2a');
+insert into t_in values ('3a', NULL, '3a');
+
+Test general IN semantics (not top-level)
+
+case A.1
+select subcase,
+(a1, b1, c1)     IN (select * from t_in where a2 = 'no_match') pred_in,
+(a1, b1, c1) NOT IN (select * from t_in where a2 = 'no_match') pred_not_in
+from t_out where subcase = 'A.1';
+subcase	pred_in	pred_not_in
+A.1	0	1
+case A.2 - impossible
+case A.3
+select subcase,
+(a1, b1, c1)     IN (select * from t_in) pred_in,
+(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
+from t_out where subcase = 'A.3';
+subcase	pred_in	pred_not_in
+A.3	NULL	NULL
+case A.4
+select subcase,
+(a1, b1, c1)     IN (select * from t_in) pred_in,
+(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
+from t_out where subcase = 'A.4';
+subcase	pred_in	pred_not_in
+A.4	0	1
+case B.1
+select subcase,
+(a1, b1, c1)     IN (select * from t_in where a2 = 'no_match') pred_in,
+(a1, b1, c1) NOT IN (select * from t_in where a2 = 'no_match') pred_not_in
+from t_out where subcase = 'B.1';
+subcase	pred_in	pred_not_in
+B.1	0	1
+case B.2
+select subcase,
+(a1, b1, c1)     IN (select * from t_in) pred_in,
+(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
+from t_out where subcase = 'B.2';
+subcase	pred_in	pred_not_in
+B.2	1	0
+case B.3
+select subcase,
+(a1, b1, c1)     IN (select * from t_in) pred_in,
+(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
+from t_out where subcase = 'B.3';
+subcase	pred_in	pred_not_in
+B.3	NULL	NULL
+case B.4
+select subcase,
+(a1, b1, c1)     IN (select * from t_in) pred_in,
+(a1, b1, c1) NOT IN (select * from t_in) pred_not_in
+from t_out where subcase = 'B.4';
+subcase	pred_in	pred_not_in
+B.4	0	1
+
+Test IN as top-level predicate, and
+as non-top level for cases A.3, B.3 (the only cases with NULL result).
+
+case A.1
+select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
+where subcase = 'A.1' and
+(a1, b1, c1) IN (select * from t_in where a1 = 'no_match');
+pred_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
+where subcase = 'A.1' and
+(a1, b1, c1) NOT IN (select * from t_in where a1 = 'no_match');
+pred_not_in
+T
+select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
+where subcase = 'A.1' and
+NOT((a1, b1, c1) IN (select * from t_in where a1 = 'no_match'));
+not_pred_in
+T
+case A.3
+select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
+where subcase = 'A.3' and
+(a1, b1, c1) IN (select * from t_in);
+pred_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
+where subcase = 'A.3' and
+(a1, b1, c1) NOT IN (select * from t_in);
+pred_not_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
+where subcase = 'A.3' and
+NOT((a1, b1, c1) IN (select * from t_in));
+not_pred_in
+F
+select case when count(*) > 0 then 'N' else 'wrong result' end as pred_in from t_out
+where subcase = 'A.3' and
+((a1, b1, c1) IN (select * from t_in)) is NULL and
+((a1, b1, c1) NOT IN (select * from t_in)) is NULL;
+pred_in
+N
+case A.4
+select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
+where subcase = 'A.4' and
+(a1, b1, c1) IN (select * from t_in);
+pred_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
+where subcase = 'A.4' and
+(a1, b1, c1) NOT IN (select * from t_in);
+pred_not_in
+T
+select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
+where subcase = 'A.4' and
+NOT((a1, b1, c1) IN (select * from t_in));
+not_pred_in
+T
+case B.1
+select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
+where subcase = 'B.1' and
+(a1, b1, c1) IN (select * from t_in where a1 = 'no_match');
+pred_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
+where subcase = 'B.1' and
+(a1, b1, c1) NOT IN (select * from t_in where a1 = 'no_match');
+pred_not_in
+T
+select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
+where subcase = 'B.1' and
+NOT((a1, b1, c1) IN (select * from t_in where a1 = 'no_match'));
+not_pred_in
+T
+case B.2
+select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
+where subcase = 'B.2' and
+(a1, b1, c1) IN (select * from t_in);
+pred_in
+T
+select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
+where subcase = 'B.2' and
+(a1, b1, c1) NOT IN (select * from t_in);
+pred_not_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
+where subcase = 'B.2' and
+NOT((a1, b1, c1) IN (select * from t_in));
+not_pred_in
+F
+case B.3
+select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
+where subcase = 'B.3' and
+(a1, b1, c1) IN (select * from t_in);
+pred_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
+where subcase = 'B.3' and
+(a1, b1, c1) NOT IN (select * from t_in);
+pred_not_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
+where subcase = 'B.3' and
+NOT((a1, b1, c1) IN (select * from t_in));
+not_pred_in
+F
+select case when count(*) > 0 then 'N' else 'wrong result' end as pred_in from t_out
+where subcase = 'B.3' and
+((a1, b1, c1) IN (select * from t_in)) is NULL and
+((a1, b1, c1) NOT IN (select * from t_in)) is NULL;
+pred_in
+N
+case B.4
+select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out
+where subcase = 'B.4' and
+(a1, b1, c1) IN (select * from t_in);
+pred_in
+F
+select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out
+where subcase = 'B.4' and
+(a1, b1, c1) NOT IN (select * from t_in);
+pred_not_in
+T
+select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out
+where subcase = 'B.4' and
+NOT((a1, b1, c1) IN (select * from t_in));
+not_pred_in
+T
+drop table t_out;
+drop table t_in;
+CREATE TABLE t1 (a INT, b INT);
+INSERT INTO t1 VALUES (2,22),(1,11),(2,22);
+SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a;
+a
+1
+2
+SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a;
+a
+SELECT a FROM t1 t0
+WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a;
+a
+1
+2
+SET @@sql_mode='ansi';
+SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a;
+ERROR HY000: Invalid use of group function
+SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a;
+ERROR HY000: Invalid use of group function
+SELECT a FROM t1 t0
+WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a;
+ERROR HY000: Invalid use of group function
+SET @@sql_mode=default;
+DROP TABLE t1;
+CREATE TABLE t1 (s1 CHAR(1));
+INSERT INTO t1 VALUES ('a');
+SELECT * FROM t1 WHERE _utf8'a' = ANY (SELECT s1 FROM t1);
+s1
+a
+DROP TABLE t1;
+CREATE TABLE t1(c INT, KEY(c));
+CREATE TABLE t2(a INT, b INT);
+INSERT INTO t2 VALUES (1, 10), (2, NULL);
+INSERT INTO t1 VALUES (1), (3);
+SELECT * FROM t2 WHERE b NOT IN (SELECT max(t.c) FROM t1, t1 t WHERE t.c>10);
+a	b
+DROP TABLE t1,t2;
+CREATE TABLE t1(pk INT PRIMARY KEY, a INT, INDEX idx(a));
+INSERT INTO t1 VALUES (1, 10), (3, 30), (2, 20);
+CREATE TABLE t2(pk INT PRIMARY KEY, a INT, b INT, INDEX idxa(a));
+INSERT INTO t2 VALUES (2, 20, 700), (1, 10, 200), (4, 10, 100);
+SELECT * FROM t1
+WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b);
+pk	a
+1	10
+DROP TABLE t1,t2;
+CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b));
+INSERT INTO t1 VALUES (1,NULL), (9,NULL);
+CREATE TABLE t2 (
+a INT,
+b INT,
+c INT,
+d INT,
+PRIMARY KEY (a),
+UNIQUE KEY b (b,c,d),
+KEY b_2 (b),
+KEY c (c),
+KEY d (d)
+);
+INSERT INTO t2 VALUES
+(43, 2, 11 ,30),
+(44, 2, 12 ,30),
+(45, 1, 1  ,10000),
+(46, 1, 2  ,10000),
+(556,1, 32 ,10000);
+CREATE TABLE t3 (
+a INT,
+b INT,
+c INT,
+PRIMARY KEY (a),
+UNIQUE KEY b (b,c),
+KEY c (c),
+KEY b_2 (b)
+);
+INSERT INTO t3 VALUES (1,1,1), (2,32,1);
+explain
+SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	index	PRIMARY	PRIMARY	4	NULL	2	Using index
+1	PRIMARY	t3	ref	b,b_2	b	5	test.t1.a	1	Using index
+2	DEPENDENT SUBQUERY	t2	ref	b,b_2,c	b	10	test.t3.c,test.t1.a	1	Using where; Using index; Using filesort
+SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a;
+a	incorrect
+1	1
+DROP TABLE t1,t2,t3;
+CREATE TABLE t1 (id int);
+CREATE TABLE t2 (id int, c int);
+INSERT INTO t1 (id) VALUES (1);
+INSERT INTO t2 (id) VALUES (1);
+INSERT INTO t1 (id) VALUES (1);
+INSERT INTO t2 (id) VALUES (1);
+CREATE VIEW v1 AS
+SELECT t2.c AS c FROM t1, t2
+WHERE t1.id=t2.id AND 1 IN (SELECT id FROM t1) WITH CHECK OPTION;
+UPDATE v1 SET c=1;
+CREATE VIEW v2 (a,b) AS
+SELECT t2.id, t2.c AS c FROM t1, t2
+WHERE t1.id=t2.id AND 1 IN (SELECT id FROM t1) WITH CHECK OPTION;
+INSERT INTO v2(a,b) VALUES (2,2);
+ERROR HY000: CHECK OPTION failed 'test.v2'
+SELECT * FROM v1;
+c
+1
+1
+1
+1
+CREATE VIEW v3 AS
+SELECT t2.c AS c FROM t2
+WHERE 1 IN (SELECT id FROM t1) WITH CHECK OPTION;
+DELETE FROM v3;
+DROP VIEW v1,v2,v3;
+DROP TABLE t1,t2;
+#
+# BUG#37822 Correlated subquery with IN and IS UNKNOWN provides wrong result
+#
+create table t1(id integer primary key, g integer, v integer, s char(1));
+create table t2(id integer primary key, g integer, v integer, s char(1));
+insert into t1 values
+(10, 10, 10,   'l'),
+(20, 20, 20,   'l'),
+(40, 40, 40,   'l'),
+(41, 40, null, 'l'),
+(50, 50, 50,   'l'),
+(51, 50, null, 'l'),
+(60, 60, 60,   'l'),
+(61, 60, null, 'l'),
+(70, 70, 70,   'l'),
+(90, 90, null, 'l');
+insert into t2 values
+(10, 10, 10,   'r'),
+(30, 30, 30,   'r'),
+(50, 50, 50,   'r'),
+(60, 60, 60,   'r'),
+(61, 60, null, 'r'),
+(70, 70, 70,   'r'),
+(71, 70, null, 'r'),
+(80, 80, 80,   'r'),
+(81, 80, null, 'r'),
+(100,100,null, 'r');
+select *
+from t1
+where v in(select v
+from t2
+where t1.g=t2.g) is unknown;
+id	g	v	s
+51	50	NULL	l
+61	60	NULL	l
+drop table t1, t2;
+#
+# Bug#37822 Correlated subquery with IN and IS UNKNOWN provides wrong result
+#
+create table t1(id integer primary key, g integer, v integer, s char(1));
+create table t2(id integer primary key, g integer, v integer, s char(1));
+insert into t1 values
+(10, 10, 10,   'l'),
+(20, 20, 20,   'l'),
+(40, 40, 40,   'l'),
+(41, 40, null, 'l'),
+(50, 50, 50,   'l'),
+(51, 50, null, 'l'),
+(60, 60, 60,   'l'),
+(61, 60, null, 'l'),
+(70, 70, 70,   'l'),
+(90, 90, null, 'l');
+insert into t2 values
+(10, 10, 10,   'r'),
+(30, 30, 30,   'r'),
+(50, 50, 50,   'r'),
+(60, 60, 60,   'r'),
+(61, 60, null, 'r'),
+(70, 70, 70,   'r'),
+(71, 70, null, 'r'),
+(80, 80, 80,   'r'),
+(81, 80, null, 'r'),
+(100,100,null, 'r');
+select *
+from t1
+where v in(select v
+from t2
+where t1.g=t2.g) is unknown;
+id	g	v	s
+51	50	NULL	l
+61	60	NULL	l
+drop table t1, t2;
+#
+# Bug#33204: INTO is allowed in subselect, causing inconsistent results
+#
+CREATE TABLE t1( a INT );
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2( a INT, b INT );
+SELECT * 
+FROM (SELECT a INTO @var FROM t1 WHERE a = 2) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @var FROM t1 WHERE a = 2) t1a' at line 2
+SELECT * 
+FROM (SELECT a INTO OUTFILE 'file' FROM t1 WHERE a = 2) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' FROM t1 WHERE a = 2) t1a' at line 2
+SELECT * 
+FROM (SELECT a INTO DUMPFILE 'file' FROM t1 WHERE a = 2) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' FROM t1 WHERE a = 2) t1a' at line 2
+SELECT * FROM ( 
+SELECT 1 a 
+UNION 
+SELECT a INTO @var FROM t1 WHERE a = 2 
+) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @var FROM t1 WHERE a = 2 
+) t1a' at line 4
+SELECT * FROM ( 
+SELECT 1 a 
+UNION 
+SELECT a INTO OUTFILE 'file' FROM t1 WHERE a = 2 
+) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' FROM t1 WHERE a = 2 
+) t1a' at line 4
+SELECT * FROM ( 
+SELECT 1 a 
+UNION 
+SELECT a INTO DUMPFILE 'file' FROM t1 WHERE a = 2 
+) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' FROM t1 WHERE a = 2 
+) t1a' at line 4
+SELECT * FROM (SELECT a FROM t1 WHERE a = 2) t1a;
+a
+2
+SELECT * FROM ( 
+SELECT a FROM t1 WHERE a = 2 
+UNION 
+SELECT a FROM t1 WHERE a = 2 
+) t1a;
+a
+2
+SELECT * FROM ( 
+SELECT 1 a 
+UNION 
+SELECT a FROM t1 WHERE a = 2 
+UNION 
+SELECT a FROM t1 WHERE a = 2 
+) t1a;
+a
+1
+2
+SELECT * FROM ((SELECT 1 a) UNION SELECT 1 a);
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1
+SELECT * FROM (SELECT 1 a UNION (SELECT 1 a)) alias;
+a
+1
+SELECT * FROM (SELECT 1 UNION SELECT 1) t1a;
+1
+1
+SELECT * FROM ((SELECT 1 a INTO @a)) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @a)) t1a' at line 1
+SELECT * FROM ((SELECT 1 a INTO OUTFILE 'file' )) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' )) t1a' at line 1
+SELECT * FROM ((SELECT 1 a INTO DUMPFILE 'file' )) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' )) t1a' at line 1
+SELECT * FROM (SELECT 1 a UNION (SELECT 1 a INTO @a)) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @a)) t1a' at line 1
+SELECT * FROM (SELECT 1 a UNION (SELECT 1 a INTO DUMPFILE 'file' )) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' )) t1a' at line 1
+SELECT * FROM (SELECT 1 a UNION (SELECT 1 a INTO OUTFILE 'file' )) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' )) t1a' at line 1
+SELECT * FROM (SELECT 1 a UNION ((SELECT 1 a INTO @a))) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @a))) t1a' at line 1
+SELECT * FROM (SELECT 1 a UNION ((SELECT 1 a INTO DUMPFILE 'file' ))) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' ))) t1a' at line 1
+SELECT * FROM (SELECT 1 a UNION ((SELECT 1 a INTO OUTFILE 'file' ))) t1a;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' ))) t1a' at line 1
+SELECT * FROM (SELECT 1 a ORDER BY a) t1a;
+a
+1
+SELECT * FROM (SELECT 1 a UNION SELECT 1 a ORDER BY a) t1a;
+a
+1
+SELECT * FROM (SELECT 1 a UNION SELECT 1 a LIMIT 1) t1a;
+a
+1
+SELECT * FROM (SELECT 1 a UNION SELECT 1 a ORDER BY a LIMIT 1) t1a;
+a
+1
+SELECT * FROM t1 JOIN  (SELECT 1 UNION SELECT 1) alias ON 1;
+a	1
+1	1
+2	1
+SELECT * FROM t1 JOIN ((SELECT 1 UNION SELECT 1)) ON 1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')) ON 1' at line 1
+SELECT * FROM t1 JOIN  (t1 t1a UNION SELECT 1)  ON 1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'ON 1' at line 1
+SELECT * FROM t1 JOIN ((t1 t1a UNION SELECT 1)) ON 1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ') ON 1' at line 1
+SELECT * FROM t1 JOIN  (t1 t1a)  t1a ON 1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't1a ON 1' at line 1
+SELECT * FROM t1 JOIN ((t1 t1a)) t1a ON 1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't1a ON 1' at line 1
+SELECT * FROM t1 JOIN  (t1 t1a)  ON 1;
+a	a
+1	1
+2	1
+1	2
+2	2
+SELECT * FROM t1 JOIN ((t1 t1a)) ON 1;
+a	a
+1	1
+2	1
+1	2
+2	2
+SELECT * FROM (t1 t1a);
+a
+1
+2
+SELECT * FROM ((t1 t1a));
+a
+1
+2
+SELECT * FROM t1 JOIN  (SELECT 1 t1a) alias ON 1;
+a	t1a
+1	1
+2	1
+SELECT * FROM t1 JOIN ((SELECT 1 t1a)) alias ON 1;
+a	t1a
+1	1
+2	1
+SELECT * FROM t1 JOIN  (SELECT 1 a)  a ON 1;
+a	a
+1	1
+2	1
+SELECT * FROM t1 JOIN ((SELECT 1 a)) a ON 1;
+a	a
+1	1
+2	1
+SELECT * FROM (t1 JOIN (SELECT 1) t1a1 ON 1) t1a2;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't1a2' at line 1
+SELECT * FROM t1 WHERE a = ALL ( SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE a = ALL ( SELECT 1 UNION SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE a = ANY ( SELECT 3 UNION SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION SELECT 1 INTO @a);
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @a)' at line 1
+SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION SELECT 1 INTO OUTFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' )' at line 1
+SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION SELECT 1 INTO DUMPFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' )' at line 1
+SELECT * FROM t1 WHERE a = ( SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE a = ( SELECT 1 INTO @a);
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @a)' at line 1
+SELECT * FROM t1 WHERE a = ( SELECT 1 INTO OUTFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' )' at line 1
+SELECT * FROM t1 WHERE a = ( SELECT 1 INTO DUMPFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' )' at line 1
+SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 INTO @a);
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @a)' at line 1
+SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 INTO OUTFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' )' at line 1
+SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 INTO DUMPFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' )' at line 1
+SELECT ( SELECT 1 INTO @v );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @v )' at line 1
+SELECT ( SELECT 1 INTO OUTFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' )' at line 1
+SELECT ( SELECT 1 INTO DUMPFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' )' at line 1
+SELECT ( SELECT 1 UNION SELECT 1 INTO @v );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @v )' at line 1
+SELECT ( SELECT 1 UNION SELECT 1 INTO OUTFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO OUTFILE 'file' )' at line 1
+SELECT ( SELECT 1 UNION SELECT 1 INTO DUMPFILE 'file' );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO DUMPFILE 'file' )' at line 1
+SELECT ( SELECT a FROM t1 WHERE a = 1 ), a FROM t1;
+( SELECT a FROM t1 WHERE a = 1 )	a
+1	1
+1	2
+SELECT ( SELECT a FROM t1 WHERE a = 1 UNION SELECT 1 ), a FROM t1;
+( SELECT a FROM t1 WHERE a = 1 UNION SELECT 1 )	a
+1	1
+1	2
+SELECT * FROM t2 WHERE (a, b) IN (SELECT a, b FROM t2);
+a	b
+SELECT 1 UNION ( SELECT 1 UNION SELECT 1 );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1
+( SELECT 1 UNION SELECT 1 ) UNION SELECT 1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) UNION SELECT 1' at line 1
+SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1' at line 1
+SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
+( SELECT 1 UNION SELECT 1 UNION SELECT 1 )
+1
+SELECT ((SELECT 1 UNION SELECT 1 UNION SELECT 1));
+((SELECT 1 UNION SELECT 1 UNION SELECT 1))
+1
+SELECT * FROM ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ') UNION SELECT 1 )' at line 1
+SELECT * FROM ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) a;
+1
+1
+SELECT * FROM t1 WHERE a =     ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+SELECT * FROM t1 WHERE a = ALL ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+SELECT * FROM t1 WHERE a IN    ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+SELECT * FROM t1 WHERE a =     ( ( SELECT 1 UNION SELECT 1 )  UNION SELECT 1 );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1
+SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 )  UNION SELECT 1 );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )  UNION SELECT 1 )' at line 1
+SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 )  UNION SELECT 1 );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )  UNION SELECT 1 )' at line 1
+SELECT * FROM t1 WHERE a IN    ( ( SELECT 1 UNION SELECT 1 )  UNION SELECT 1 );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1
+SELECT * FROM t1 WHERE a =     ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE a = ALL ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE a IN    ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
+a
+1
+SELECT * FROM t1 WHERE EXISTS ( SELECT 1 UNION SELECT 1 INTO @v );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @v )' at line 1
+SELECT EXISTS(SELECT 1+1);
+EXISTS(SELECT 1+1)
+1
+SELECT EXISTS(SELECT 1+1 INTO @test);
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @test)' at line 1
+SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION SELECT 1 INTO @v );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @v )' at line 1
+SELECT * FROM t1 WHERE EXISTS ( SELECT 1 INTO @v );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @v )' at line 1
+SELECT * FROM t1 WHERE a IN ( SELECT 1 INTO @v );
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @v )' at line 1
+DROP TABLE t1, t2;
+CREATE TABLE t1 (a ENUM('rainbow'));
+INSERT INTO t1 VALUES (),(),(),(),();
+SELECT 1 FROM t1 GROUP BY (SELECT 1 FROM t1 ORDER BY AVG(LAST_INSERT_ID()));
+1
+1
+DROP TABLE t1;
+CREATE TABLE t1 (a LONGBLOB);
+INSERT INTO t1 SET a = 'aaaa';
+INSERT INTO t1 SET a = 'aaaa';
+SELECT 1 FROM t1 GROUP BY
+(SELECT LAST_INSERT_ID() FROM t1 ORDER BY MIN(a) ASC LIMIT 1);
+1
+1
+DROP TABLE t1;
+#
+# Bug #49512 : subquery with aggregate function crash 
+#   subselect_single_select_engine::exec()
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES();
+# should not crash
+SELECT 1 FROM t1 WHERE a <> SOME
+(
+SELECT MAX((SELECT a FROM t1 LIMIT 1)) AS d
+FROM t1,t1 a
+);
+1
+DROP TABLE t1;
+#
+# Bug #45989 take 2 : memory leak after explain encounters an 
+# error in the query
+#
+CREATE TABLE t1(a LONGTEXT);
+INSERT INTO t1 VALUES (repeat('a',@@global.max_allowed_packet));
+INSERT INTO t1 VALUES (repeat('b',@@global.max_allowed_packet));
+EXPLAIN EXTENDED SELECT DISTINCT 1 FROM t1,
+(SELECT DISTINCTROW a AS away FROM t1 GROUP BY a WITH ROLLUP) AS d1  
+WHERE t1.a = d1.a;
+ERROR 42S22: Unknown column 'd1.a' in 'where clause'
+DROP TABLE t1;
+Set up test tables.
+CREATE TABLE t1 (
+t1_id INT UNSIGNED,
+PRIMARY KEY(t1_id)
+) Engine=MyISAM;
+INSERT INTO t1 (t1_id) VALUES (1), (2), (3), (4), (5);
+CREATE TABLE t2 SELECT * FROM t1;
+CREATE TABLE t3 (
+t3_id INT UNSIGNED AUTO_INCREMENT,
+t1_id INT UNSIGNED,
+amount DECIMAL(16,2),
+PRIMARY KEY(t3_id),
+KEY(t1_id)
+) Engine=MyISAM;
+INSERT INTO t3 (t1_id, t3_id, amount) 
+VALUES (1, 1, 100.00), (2, 2, 200.00), (4, 4, 400.00);
+This is the 'inner query' running by itself.
+Produces correct results.
+SELECT
+t1.t1_id,
+IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount
+FROM
+t1
+LEFT JOIN t2 ON t2.t1_id=t1.t1_id
+GROUP BY
+t1.t1_id
+;
+t1_id	total_amount
+1	100.00
+2	200.00
+3	0.00
+4	400.00
+5	0.00
+SELECT * FROM (the same inner query)
+Produces correct results.
+SELECT * FROM (
+SELECT
+t1.t1_id,
+IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount
+FROM
+t1
+LEFT JOIN t2 ON t2.t1_id=t1.t1_id
+GROUP BY
+t1.t1_id
+) AS t;
+t1_id	total_amount
+1	100.00
+2	200.00
+3	0.00
+4	400.00
+5	0.00
+Now make t2.t1_id part of a key.
+ALTER TABLE t2 ADD PRIMARY KEY(t1_id);
+Same inner query by itself.
+Still correct results.
+SELECT
+t1.t1_id,
+IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount
+FROM
+t1
+LEFT JOIN t2 ON t2.t1_id=t1.t1_id
+GROUP BY
+t1.t1_id;
+t1_id	total_amount
+1	100.00
+2	200.00
+3	0.00
+4	400.00
+5	0.00
+SELECT * FROM (the same inner query), now with indexes on the LEFT JOIN
+SELECT * FROM (
+SELECT
+t1.t1_id,
+IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount
+FROM
+t1
+LEFT JOIN t2 ON t2.t1_id=t1.t1_id
+GROUP BY
+t1.t1_id
+) AS t;
+t1_id	total_amount
+1	100.00
+2	200.00
+3	0.00
+4	400.00
+5	0.00
+DROP TABLE t3;
+DROP TABLE t2;
+DROP TABLE t1;
+#
+# Bug #52711: Segfault when doing EXPLAIN SELECT with 
+#  union...order by (select... where...)
+#
+CREATE TABLE t1 (a VARCHAR(10), FULLTEXT KEY a (a));
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (b INT);
+INSERT INTO t2 VALUES (1),(2);
+# Should not crash
+EXPLAIN
+SELECT * FROM t2 UNION SELECT * FROM t2
+ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE));
+# Should not crash
+SELECT * FROM t2 UNION SELECT * FROM t2
+ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE));
+DROP TABLE t1,t2;
+#
+# Bug #58818: Incorrect result for IN/ANY subquery
+# with HAVING condition 
+#
+CREATE TABLE t1(i INT);
+INSERT INTO t1 VALUES (1), (2), (3);
+CREATE TABLE t1s(i INT);
+INSERT INTO t1s VALUES (10), (20), (30);
+CREATE TABLE t2s(i INT);
+INSERT INTO t2s VALUES (100), (200), (300);
+SELECT * FROM t1
+WHERE t1.i NOT IN
+(
+SELECT STRAIGHT_JOIN t2s.i 
+FROM
+t1s LEFT OUTER JOIN t2s ON t2s.i = t1s.i
+HAVING t2s.i = 999
+);
+i
+1
+2
+3
+SELECT * FROM t1
+WHERE t1.I IN
+(
+SELECT STRAIGHT_JOIN t2s.i 
+FROM
+t1s LEFT OUTER JOIN t2s ON t2s.i = t1s.i
+HAVING t2s.i = 999
+) IS UNKNOWN;
+i
+SELECT * FROM t1
+WHERE NOT t1.I = ANY
+(
+SELECT STRAIGHT_JOIN t2s.i 
+FROM
+t1s LEFT OUTER JOIN t2s ON t2s.i = t1s.i
+HAVING t2s.i = 999
+);
+i
+1
+2
+3
+SELECT * FROM t1
+WHERE t1.i = ANY (
+SELECT STRAIGHT_JOIN t2s.i 
+FROM
+t1s LEFT OUTER JOIN t2s ON t2s.i = t1s.i
+HAVING t2s.i = 999
+) IS UNKNOWN;
+i
+DROP TABLE t1,t1s,t2s;
+# LP BUG#675248 - select->prep_where references on freed memory 
+CREATE TABLE t1 (a int, b int);
+insert into t1 values (1,1),(0,0);
+CREATE TABLE t2 (c int);
+insert into t2 values (1),(2);
+prepare stmt1 from "select sum(a),(select sum(c) from t2 where table1.b) as sub
+from t1 as table1 group by sub";
+execute stmt1;
+sum(a)	sub
+0	NULL
+1	3
+deallocate prepare stmt1;
+prepare stmt1 from "select sum(a),(select sum(c) from t2 having table1.b) as sub
+from t1 as table1";
+execute stmt1;
+sum(a)	sub
+1	3
+deallocate prepare stmt1;
+drop table t1,t2;
+#
+# Bug LP#693935/#58727: Assertion failure with 
+# a single row subquery returning more than one row
+#
+create table t1 (a char(1) charset utf8);
+insert into t1 values ('a'), ('b');
+create table t2 (a binary(1));
+insert into t2 values ('x'), ('y');
+select * from t2 where a=(select a from t1) and a='x';
+ERROR 21000: Subquery returns more than 1 row
+drop table t1,t2;
+End of 5.1 tests
+#
+# Bug #11765713 58705:
+# OPTIMIZER LET ENGINE DEPEND ON UNINITIALIZED VALUES
+# CREATED BY OPT_SUM_QUERY
+#
+CREATE TABLE t1(a INT NOT NULL, KEY (a));
+INSERT INTO t1 VALUES (0), (1);
+SELECT 1 as foo FROM t1 WHERE a < SOME
+(SELECT a FROM t1 WHERE a <=>
+(SELECT a FROM t1)
+);
+ERROR 21000: Subquery returns more than 1 row
+SELECT 1 as foo FROM t1 WHERE a < SOME
+(SELECT a FROM t1 WHERE a <=>
+(SELECT a FROM t1 where a is null)
+);
+foo
+DROP TABLE t1;
+#
+# Bug #57704: Cleanup code dies with void TABLE::set_keyread(bool): 
+#             Assertion `file' failed.
+#
+CREATE TABLE t1 (a INT);
+SELECT 1 FROM 
+(SELECT ROW(
+(SELECT 1 FROM t1 RIGHT JOIN 
+(SELECT 1 FROM t1, t1 t2) AS d ON 1),
+1) FROM t1) AS e;
+ERROR 21000: Operand should contain 1 column(s)
+DROP TABLE t1;
+#
+# Bug#13721076 CRASH WITH TIME TYPE/TIMESTAMP() AND WARNINGS IN SUBQUERY
+#
+CREATE TABLE t1(a TIME NOT NULL);
+INSERT INTO t1 VALUES ('00:00:32');
+SELECT 1 FROM t1 WHERE a >
+(SELECT timestamp(a) AS a FROM t1);
+1
+DROP TABLE t1;
+#
+# No BUG#, a case brought from 5.2's innodb_mysql_lock.test
+#
+create table t1 (i int  not null primary key);
+insert into t1 values (1),(2),(3),(4),(5);
+create table t2 (j int not null  primary key);
+insert into t2 values (1),(2),(3),(4),(5);
+create table t3 (k int not null primary key);
+insert into t3 values (1),(2),(3);
+create view v2 as select t2.j as j from t2 where t2.j in (select t1.i from t1);
+select * from t3 where k in (select j from v2);
+k
+1
+2
+3
+drop table t1,t2,t3;
+drop view v2;
+#
+# Bug#52068: Optimizer generates invalid semijoin materialization plan
+#
+drop table if exists ot1, ot2, it1, it2;
+CREATE TABLE ot1(a INTEGER);
+INSERT INTO ot1 VALUES(5), (8);
+CREATE TABLE it2(a INTEGER);
+INSERT INTO it2 VALUES(9), (5), (1), (8);
+CREATE TABLE it3(a INTEGER);
+INSERT INTO it3 VALUES(7), (1), (0), (5), (1), (4);
+CREATE TABLE ot4(a INTEGER);
+INSERT INTO ot4 VALUES(1), (3), (5), (7), (9), (7), (3), (1);
+SELECT * FROM ot1,ot4
+WHERE (ot1.a,ot4.a) IN (SELECT it2.a,it3.a
+FROM it2,it3);
+a	a
+5	1
+8	1
+5	5
+8	5
+5	7
+8	7
+5	7
+8	7
+5	1
+8	1
+explain SELECT * FROM ot1,ot4
+WHERE (ot1.a,ot4.a) IN (SELECT it2.a,it3.a
+FROM it2,it3);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	ot1	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	ot4	ALL	NULL	NULL	NULL	NULL	8	Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
+2	MATERIALIZED	it2	ALL	NULL	NULL	NULL	NULL	4	
+2	MATERIALIZED	it3	ALL	NULL	NULL	NULL	NULL	6	Using join buffer (flat, BNL join)
+DROP TABLE IF EXISTS ot1, ot4, it2, it3;
+#
+# Bug#729039: NULL keys used to evaluate subquery
+#
+CREATE TABLE t1 (a int) ;
+INSERT INTO t1 VALUES (NULL), (1), (NULL), (2);
+CREATE TABLE t2 (a int, INDEX idx(a)) ;
+INSERT INTO t2 VALUES (NULL), (1), (NULL);
+SELECT * FROM t1
+WHERE EXISTS (SELECT a FROM t2 USE INDEX () WHERE t2.a = t1.a);
+a
+1
+EXPLAIN
+SELECT * FROM t1
+WHERE EXISTS (SELECT a FROM t2 USE INDEX() WHERE t2.a = t1.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	Using where; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	
+SELECT * FROM t1
+WHERE EXISTS (SELECT a FROM t2 WHERE t2.a = t1.a);
+a
+1
+EXPLAIN
+SELECT * FROM t1
+WHERE EXISTS (SELECT a FROM t2 WHERE t2.a = t1.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	Using where; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t2	index	idx	idx	5	NULL	3	Using index
+DROP TABLE t1,t2;
+#
+# BUG#752992: Wrong results for a subquery with 'semijoin=on'
+#
+CREATE TABLE t1 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL);
+INSERT INTO t1 VALUES (11,0);
+INSERT INTO t1 VALUES (12,5);
+INSERT INTO t1 VALUES (15,0);
+CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL);
+INSERT INTO t2 VALUES (11,1);
+INSERT INTO t2 VALUES (12,2);
+INSERT INTO t2 VALUES (15,4);
+SET @save_join_cache_level=@@join_cache_level;
+SET join_cache_level=0;
+EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	3	
+1	PRIMARY	it	eq_ref	PRIMARY	PRIMARY	4	test.t1.pk	1	Using index
+1	PRIMARY	t2	index	NULL	PRIMARY	4	NULL	3	Using index; FirstMatch(it)
+SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
+pk	i
+11	0
+12	5
+15	0
+SET join_cache_level=@save_join_cache_level;
+DROP table t1,t2;
+#
+# Bug#751350: crash with pushed condition for outer references when
+#             there should be none of such conditions
+#
+CREATE TABLE t1 (a int, b int) ;
+INSERT INTO t1 VALUES (0,0),(0,0);
+set @optimizer_switch_save=@@optimizer_switch;
+set @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=on';
+EXPLAIN
+SELECT b FROM t1
+WHERE ('0') IN ( SELECT a  FROM t1 GROUP BY a )
+GROUP BY b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using temporary; Using filesort
+2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+SELECT b FROM t1
+WHERE ('0') IN ( SELECT a  FROM t1 GROUP BY a )
+GROUP BY b;
+b
+0
+set @@optimizer_switch=@optimizer_switch_save;
+DROP TABLE t1;
+#
+# Bug #11765713 58705:
+# OPTIMIZER LET ENGINE DEPEND ON UNINITIALIZED VALUES
+# CREATED BY OPT_SUM_QUERY
+#
+CREATE TABLE t1(a INT NOT NULL, KEY (a));
+INSERT INTO t1 VALUES (0), (1);
+SELECT 1 as foo FROM t1 WHERE a < SOME
+(SELECT a FROM t1 WHERE a <=>
+(SELECT a FROM t1)
+);
+ERROR 21000: Subquery returns more than 1 row
+SELECT 1 as foo FROM t1 WHERE a < SOME
+(SELECT a FROM t1 WHERE a <=>
+(SELECT a FROM t1 where a is null)
+);
+foo
+DROP TABLE t1;
+CREATE TABLE t1 (a int(11), b varchar(1));
+INSERT INTO t1 VALUES (2,NULL),(5,'d'),(7,'g');
+SELECT a FROM t1 WHERE b < ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+SELECT a FROM t1 WHERE b < ANY ( SELECT b FROM t1 );
+a
+5
+SELECT a FROM t1 WHERE b > ANY ( SELECT b FROM t1 GROUP BY b );
+a
+7
+SELECT a FROM t1 WHERE b > ANY ( SELECT b FROM t1 );
+a
+7
+SELECT a FROM t1 WHERE b <= ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+7
+SELECT a FROM t1 WHERE b <= ANY ( SELECT b FROM t1 );
+a
+5
+7
+SELECT a FROM t1 WHERE b >= ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+7
+SELECT a FROM t1 WHERE b >= ANY ( SELECT b FROM t1 );
+a
+5
+7
+SELECT a FROM t1 WHERE b = ANY ( SELECT b FROM t1 );
+a
+5
+7
+SELECT a FROM t1 WHERE b = ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+7
+SELECT a FROM t1 WHERE b <> ANY ( SELECT b FROM t1 );
+a
+5
+7
+SELECT a FROM t1 WHERE b <> ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+7
+SELECT a FROM t1 WHERE b < ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b < ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b > ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b > ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b <= ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b <= ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b >= ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b >= ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b = ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b = ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b <> ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b <> ALL ( SELECT b FROM t1 GROUP BY b );
+a
+delete from t1;
+INSERT INTO t1 VALUES (2,NULL),(5,'d'),(7,'g');
+SELECT a FROM t1 WHERE b < ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+SELECT a FROM t1 WHERE b < ANY ( SELECT b FROM t1 );
+a
+5
+SELECT a FROM t1 WHERE b > ANY ( SELECT b FROM t1 GROUP BY b );
+a
+7
+SELECT a FROM t1 WHERE b > ANY ( SELECT b FROM t1 );
+a
+7
+SELECT a FROM t1 WHERE b <= ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+7
+SELECT a FROM t1 WHERE b <= ANY ( SELECT b FROM t1 );
+a
+5
+7
+SELECT a FROM t1 WHERE b >= ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+7
+SELECT a FROM t1 WHERE b >= ANY ( SELECT b FROM t1 );
+a
+5
+7
+SELECT a FROM t1 WHERE b = ANY ( SELECT b FROM t1 );
+a
+5
+7
+SELECT a FROM t1 WHERE b = ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+7
+SELECT a FROM t1 WHERE b <> ANY ( SELECT b FROM t1 );
+a
+5
+7
+SELECT a FROM t1 WHERE b <> ANY ( SELECT b FROM t1 GROUP BY b );
+a
+5
+7
+SELECT a FROM t1 WHERE b < ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b < ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b > ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b > ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b <= ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b <= ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b >= ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b >= ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b = ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b = ALL ( SELECT b FROM t1 GROUP BY b );
+a
+SELECT a FROM t1 WHERE b <> ALL ( SELECT b FROM t1 );
+a
+SELECT a FROM t1 WHERE b <> ALL ( SELECT b FROM t1 GROUP BY b );
+a
+drop table t1;
+#
+# Fix of lp:780386 (NULL left part with empty ALL subquery).
+#
+CREATE TABLE t1 ( f11 int) ;
+INSERT IGNORE INTO t1 VALUES (0),(0);
+CREATE TABLE t2 ( f3 int, f10 int, KEY (f10,f3)) ;
+INSERT IGNORE INTO t2 VALUES (NULL,NULL),(5,0);
+DROP TABLE IF EXISTS t3;
+Warnings:
+Note	1051	Unknown table 't3'
+CREATE TABLE t3 ( f3 int) ;
+INSERT INTO t3 VALUES (0),(0);
+SELECT a1.f3 AS r FROM t2 AS a1 , t1 WHERE a1.f3 < ALL ( SELECT f3 FROM t3 WHERE f3 = 1 ) ;
+r
+NULL
+5
+NULL
+5
+DROP TABLE t1, t2, t3;
+#
+# Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER
+#
+CREATE TABLE t1(a1 int);
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2(a1 int);
+INSERT INTO t2 VALUES (3);
+SELECT @@session.sql_mode INTO @old_sql_mode;
+SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT 2 FROM t2);
+1
+1
+1
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT 2.0 FROM t2);
+1
+1
+1
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT 'a' FROM t2);
+1
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t2);
+1
+1
+1
+SET SESSION sql_mode=@old_sql_mode;
+DROP TABLE t1, t2;
+create table t2(i int);
+insert into t2 values(0);
+SELECT @@session.sql_mode INTO @old_sql_mode;
+SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
+CREATE VIEW v1 AS  
+SELECT 'f' FROM t2 UNION SELECT 'x' FROM t2
+;
+CREATE TABLE t1 (
+pk int NOT NULL,
+col_varchar_key varchar(1) DEFAULT NULL,
+PRIMARY KEY (pk),
+KEY col_varchar_key (col_varchar_key)
+);
+SELECT t1.pk
+FROM t1
+WHERE t1.col_varchar_key < ALL ( SELECT * FROM v1 )
+;
+pk
+SET SESSION sql_mode=@old_sql_mode;
+drop table t2, t1;
+drop view v1;
+#
+# BUG#50257: Missing info in REF column of the EXPLAIN 
+#            lines for subselects
+#
+CREATE TABLE t1 (a INT, b INT, INDEX (a));
+INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20);
+EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	a	a	5	const	1	
+EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	
+2	SUBQUERY	t1	ref	a	a	5	const	1	Using index
+DROP TABLE t1;
+#
+# BUG#12616253 - WRONG RESULT WITH EXISTS(SUBQUERY) (MISSING ROWS)
+# (duplicate of LP bug #888456)
+#
+CREATE TABLE t1 (f1 varchar(1));
+INSERT INTO t1 VALUES ('v'),('s');
+CREATE TABLE t2 (f1_key varchar(1), KEY (f1_key));
+INSERT INTO t2 VALUES ('j'),('v'),('c'),('m'),('d'),
+('d'),('y'),('t'),('d'),('s');
+EXPLAIN
+SELECT table1.f1, table2.f1_key FROM t1 AS table1, t2 AS table2
+WHERE EXISTS (SELECT DISTINCT f1_key FROM t2 
+WHERE f1_key != table2.f1_key AND f1_key >= table1.f1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	table1	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	table2	index	NULL	f1_key	4	NULL	10	Using where; Using index; Using join buffer (flat, BNL join)
+2	DEPENDENT SUBQUERY	t2	index	f1_key	f1_key	4	NULL	10	Using where; Using index
+SELECT table1.f1, table2.f1_key FROM t1 AS table1, t2 AS table2
+WHERE EXISTS (SELECT DISTINCT f1_key FROM t2 
+WHERE f1_key != table2.f1_key AND f1_key >= table1.f1);
+f1	f1_key
+v	j
+s	j
+v	v
+s	v
+v	c
+s	c
+v	m
+s	m
+v	d
+s	d
+v	d
+s	d
+v	y
+s	y
+v	t
+s	t
+v	d
+s	d
+v	s
+s	s
+DROP TABLE t1,t2;
+#
+# LP bug 919427: EXPLAIN for a query over a single-row table 
+#                with IN subquery in WHERE condition
+# 
+CREATE TABLE ot (
+col_int_nokey int(11), 
+col_varchar_nokey varchar(1)
+) ;
+INSERT INTO ot VALUES (1,'x');
+CREATE TABLE it1(
+col_int_key int(11), 
+col_varchar_key varchar(1), 
+KEY idx_cvk_cik (col_varchar_key,col_int_key)
+);
+INSERT INTO it1 VALUES (NULL,'x'), (NULL,'f');
+CREATE TABLE it2 (
+col_int_key int(11),
+col_varchar_key varchar(1),
+col_varchar_key2 varchar(1),
+KEY idx_cvk_cvk2_cik (col_varchar_key, col_varchar_key2, col_int_key),
+KEY idx_cvk_cik (col_varchar_key, col_int_key)
+);
+INSERT INTO it2 VALUES (NULL,'x','x'), (NULL,'f','f');
+EXPLAIN
+SELECT col_int_nokey FROM ot 
+WHERE col_varchar_nokey IN 
+(SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	ot	system	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
+2	MATERIALIZED	it1	ref	idx_cvk_cik	idx_cvk_cik	9	const,const	1	Using where; Using index
+SELECT col_int_nokey FROM ot 
+WHERE col_varchar_nokey IN 
+(SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
+col_int_nokey
+1
+EXPLAIN
+SELECT col_int_nokey FROM ot
+WHERE (col_varchar_nokey, 'x') IN
+(SELECT col_varchar_key, col_varchar_key2 FROM it2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	ot	system	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
+2	MATERIALIZED	it2	ref	idx_cvk_cvk2_cik,idx_cvk_cik	idx_cvk_cvk2_cik	8	const,const	1	Using where; Using index
+SELECT col_int_nokey FROM ot
+WHERE (col_varchar_nokey, 'x') IN
+(SELECT col_varchar_key, col_varchar_key2 FROM it2);
+col_int_nokey
+1
+DROP TABLE ot,it1,it2;
+#
+# MDEV-746
+# Bug#13651009 WRONG RESULT FROM DERIVED TABLE IF THE SUBQUERY
+# HAS AN EMPTY RESULT
+#
+CREATE TABLE t1 (
+pk int NOT NULL,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+CREATE TABLE t2 (
+pk int NOT NULL AUTO_INCREMENT,
+col_int_nokey int NOT NULL,
+col_int_key int NOT NULL,
+col_time_key time NOT NULL,
+col_varchar_key varchar(1) NOT NULL,
+col_varchar_nokey varchar(1) NOT NULL,
+PRIMARY KEY (pk),
+KEY col_int_key (col_int_key),
+KEY col_time_key (col_time_key),
+KEY col_varchar_key (col_varchar_key,col_int_key)
+) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,4,4,'00:00:00','b','b');
+SET @var2:=4, @var3:=8;
+
+Testcase without inner subquery
+EXPLAIN SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3;
+@var3:=12	pk	col_int_nokey	col_int_key	col_time_key	col_varchar_key	col_varchar_nokey
+SELECT @var3;
+@var3
+8
+EXPLAIN SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	<derived2>	system	NULL	NULL	NULL	NULL	0	const row not found
+2	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
+SELECT * FROM ( SELECT @var3:=12, sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key + NULL) IS NULL OR
+sq4_alias1.col_varchar_key = @var3 ) AS alias3;
+@var3:=12	pk	col_int_nokey	col_int_key	col_time_key	col_varchar_key	col_varchar_nokey
+SELECT @var3;
+@var3
+8
+
+Testcase with inner subquery; crashed WL#6095
+SET @var3=8;
+EXPLAIN SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+2	DEPENDENT SUBQUERY	c_sq1_alias1	system	PRIMARY	NULL	NULL	NULL	1	
+SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3));
+pk	col_int_nokey	col_int_key	col_time_key	col_varchar_key	col_varchar_nokey
+EXPLAIN SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+3	DEPENDENT SUBQUERY	c_sq1_alias1	system	PRIMARY	NULL	NULL	NULL	1	
+SELECT * FROM ( SELECT sq4_alias1.*
+FROM t1 AS sq4_alias1
+WHERE (sq4_alias1.col_varchar_key , sq4_alias1.col_varchar_nokey)
+NOT IN
+(SELECT c_sq1_alias1.col_varchar_key AS c_sq1_field1,
+c_sq1_alias1.col_varchar_nokey AS c_sq1_field2
+FROM t2 AS c_sq1_alias1
+WHERE (c_sq1_alias1.col_int_nokey != @var2
+OR c_sq1_alias1.pk != @var3)) ) AS alias3;
+pk	col_int_nokey	col_int_key	col_time_key	col_varchar_key	col_varchar_nokey
+DROP TABLE t1,t2;
+End of 5.2 tests
+#
+# BUG#779885: Crash in eliminate_item_equal with materialization=on in
+#
+CREATE TABLE t1 ( f1 int );
+INSERT INTO t1 VALUES (19), (20);
+CREATE TABLE t2 ( f10 varchar(32) );
+INSERT INTO t2 VALUES ('c'),('d');
+CREATE TABLE t3 ( f10 varchar(32) );
+INSERT INTO t3 VALUES ('a'),('b');
+SELECT *
+FROM t1
+WHERE
+( 't' ) IN (
+SELECT t3.f10
+FROM t3
+JOIN t2
+ON t2.f10 = t3.f10
+);
+f1
+DROP TABLE t1,t2,t3;
+#
+# BUG lp:813473: Wrong result with outer join + NOT IN subquery
+# This bug is a duplicate of Bug#11764086 whose test case is added below
+#
+CREATE TABLE t1 (c int) ;
+INSERT INTO t1 VALUES (5),(6);
+CREATE TABLE t2 (a int, b int) ;
+INSERT INTO t2 VALUES (20,9),(20,9);
+create table t3 (d int, e int);
+insert into t3 values (2, 9), (3,10);
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch='outer_join_with_cache=off';
+EXPLAIN
+SELECT t2.b , t1.c
+FROM t2 LEFT JOIN t1 ON t1.c < 3
+WHERE (t2.b , t1.c) NOT IN (SELECT * from t3);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+2	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	2	Using where
+SELECT t2.b , t1.c
+FROM t2 LEFT JOIN t1 ON t1.c < 3
+WHERE (t2.b, t1.c) NOT IN (SELECT * from t3);
+b	c
+9	NULL
+9	NULL
+SET optimizer_switch=@save_optimizer_switch;
+drop table t1, t2, t3;
+#
+# BUG#50257: Missing info in REF column of the EXPLAIN 
+#            lines for subselects
+#
+CREATE TABLE t1 (a INT, b INT, INDEX (a));
+INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20);
+
+set @tmp_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='derived_merge=off,derived_with_keys=off';
+EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	2	
+2	DERIVED	t1	ref	a	a	5	const	1	
+set optimizer_switch=@tmp_optimizer_switch;
+
+EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	
+2	SUBQUERY	t1	ref	a	a	5	const	1	Using index
+
+DROP TABLE t1;
+#
+# Bug#11764086: Null left operand to NOT IN in WHERE clause
+# behaves differently than real NULL
+#
+CREATE TABLE parent (id int);
+INSERT INTO parent VALUES (1), (2);
+CREATE TABLE child (parent_id int, other int);
+INSERT INTO child VALUES (1,NULL);
+# Offending query (c.parent_id is NULL for null-complemented rows only)
+SELECT    p.id, c.parent_id
+FROM      parent p
+LEFT JOIN child  c
+ON        p.id = c.parent_id
+WHERE     c.parent_id NOT IN (
+SELECT parent_id 
+FROM   child
+WHERE  parent_id = 3
+);
+id	parent_id
+1	1
+2	NULL
+# Some syntactic variations with IS FALSE and IS NOT TRUE
+SELECT    p.id, c.parent_id
+FROM      parent p
+LEFT JOIN child  c
+ON        p.id = c.parent_id
+WHERE     c.parent_id IN (
+SELECT parent_id 
+FROM   child
+WHERE  parent_id = 3
+) IS NOT TRUE;
+id	parent_id
+1	1
+2	NULL
+SELECT    p.id, c.parent_id
+FROM      parent p
+LEFT JOIN child  c
+ON        p.id = c.parent_id
+WHERE     c.parent_id IN (
+SELECT parent_id 
+FROM   child
+WHERE  parent_id = 3
+) IS FALSE;
+id	parent_id
+1	1
+2	NULL
+DROP TABLE parent, child;
+# End of test for bug#11764086.
+#
+# Bug 11765699 - 58690: !TABLE || (!TABLE->READ_SET || 
+#                BITMAP_IS_SET(TABLE->READ_SET, FIELD_INDEX
+#
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0), (1);
+CREATE TABLE t2(
+b TEXT, 
+c INT, 
+PRIMARY KEY (b(1))
+);
+INSERT INTO t2 VALUES ('a', 2), ('b', 3);
+SELECT 1 FROM t1 WHERE a = 
+(SELECT 1 FROM t2 WHERE b = 
+(SELECT 1 FROM t1 t11 WHERE c = 1 OR t1.a = 1 AND 1 = 2)
+ORDER BY b
+);
+1
+SELECT 1 FROM t1 WHERE a = 
+(SELECT 1 FROM t2 WHERE b = 
+(SELECT 1 FROM t1 t11 WHERE c = 1 OR t1.a = 1 AND 1 = 2)
+GROUP BY b
+);
+1
+DROP TABLE t1, t2;
+#
+# BUG#12616253 - WRONG RESULT WITH EXISTS(SUBQUERY) (MISSING ROWS)
+#
+CREATE TABLE t1 (f1 varchar(1));
+INSERT INTO t1 VALUES ('v'),('s');
+CREATE TABLE t2 (f1_key varchar(1), KEY (f1_key));
+INSERT INTO t2 VALUES ('j'),('v'),('c'),('m'),('d'),
+('d'),('y'),('t'),('d'),('s');
+SELECT table1.f1, table2.f1_key
+FROM t1 AS table1, t2 AS table2
+WHERE EXISTS 
+( 
+SELECT DISTINCT f1_key 
+FROM t2 
+WHERE f1_key != table2.f1_key AND f1_key >= table1.f1 );
+f1	f1_key
+v	j
+s	j
+v	v
+s	v
+v	c
+s	c
+v	m
+s	m
+v	d
+s	d
+v	d
+s	d
+v	y
+s	y
+v	t
+s	t
+v	d
+s	d
+v	s
+s	s
+explain SELECT table1.f1, table2.f1_key
+FROM t1 AS table1, t2 AS table2
+WHERE EXISTS 
+( 
+SELECT DISTINCT f1_key 
+FROM t2 
+WHERE f1_key != table2.f1_key AND f1_key >= table1.f1 );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	table1	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	table2	index	NULL	f1_key	4	NULL	10	Using where; Using index; Using join buffer (flat, BNL join)
+2	DEPENDENT SUBQUERY	t2	index	f1_key	f1_key	4	NULL	10	Using where; Using index
+DROP TABLE t1,t2;
+#
+# lp:826279: assertion failure with GROUP BY a result of subquery
+#
+CREATE TABLE t1 (a int);
+INSERT INTO t1 VALUES (0), (0);
+CREATE TABLE t2 (a int, b int, c int);
+INSERT INTO t2 VALUES (10,7,0), (0,7,0);
+CREATE TABLE t3 (a int, b int);
+INSERT INTO t3 VALUES (10,7), (0,7);
+SELECT SUM(DISTINCT b),
+(SELECT t2.a FROM t1 JOIN t2 ON t2.c != 0
+WHERE t.a != 0 AND t2.a != 0)
+FROM (SELECT * FROM t3) AS t
+GROUP BY 2;
+SUM(DISTINCT b)	(SELECT t2.a FROM t1 JOIN t2 ON t2.c != 0
+WHERE t.a != 0 AND t2.a != 0)
+7	NULL
+SELECT SUM(DISTINCT b), 
+(SELECT t2.a FROM t1,t2 WHERE t.a != 0 or 1=2 LIMIT 1)
+FROM (SELECT * FROM t3) AS t
+GROUP BY 2;
+SUM(DISTINCT b)	(SELECT t2.a FROM t1,t2 WHERE t.a != 0 or 1=2 LIMIT 1)
+7	NULL
+7	10
+DROP TABLE t1,t2,t3;
+#
+# Bug#12329653 
+# EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY
+#
+CREATE TABLE t1(a1 int);
+INSERT INTO t1 VALUES (1),(2);
+SELECT @@session.sql_mode INTO @old_sql_mode;
+SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
+SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1);
+1
+1
+1
+PREPARE stmt FROM 
+'SELECT 1 UNION ALL 
+SELECT 1 FROM t1
+ORDER BY
+(SELECT 1 FROM t1 AS t1_0  
+  WHERE 1 < SOME (SELECT a1 FROM t1)
+)' ;
+EXECUTE stmt ;
+ERROR 21000: Subquery returns more than 1 row
+EXECUTE stmt ;
+ERROR 21000: Subquery returns more than 1 row
+SET SESSION sql_mode=@old_sql_mode;
+DEALLOCATE PREPARE stmt;
+DROP TABLE t1;
+#
+# LP BUG#833777 Performance regression with deeply nested subqueries
+#
+create table t1 (a int not null, b char(10) not null);
+insert into t1 values (1, 'a');
+set @@optimizer_switch='in_to_exists=on,semijoin=off,materialization=off,subquery_cache=off';
+select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1)))))))))))))))))))))))))))));
+a
+1
+set @@optimizer_switch=@subselect_tmp;
+drop table t1;
+#
+# LP BUG#894397 Wrong result with in_to_exists, constant table , semijoin=OFF,materialization=OFF
+#
+CREATE TABLE t1 (a varchar(3));
+INSERT INTO t1 VALUES ('AAA'),('BBB');
+CREATE TABLE t2 (a varchar(3));
+INSERT INTO t2 VALUES ('CCC');
+set @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
+SELECT * FROM t1 WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.a < 'ZZZ');
+a
+set @@optimizer_switch=@subselect_tmp;
+drop table t1, t2;
+#
+# LP bug #859375: Assertion `0' failed in st_select_lex_unit::optimize
+# with view , UNION and prepared statement (rewriting fake_select
+# condition).
+#
+CREATE TABLE t1 ( f1 int NOT NULL, f4 varchar(1) NOT NULL) ;
+INSERT INTO t1 VALUES (6,'d'),(7,'y');
+CREATE TABLE t2 ( f1 int NOT NULL, f2 int NOT NULL) ;
+INSERT INTO t2 VALUES (10,7);
+CREATE VIEW v2 AS SELECT * FROM t2;
+PREPARE st1 FROM "
+        SELECT *
+        FROM t1
+        LEFT JOIN v2 ON ( v2.f2 = t1.f1 )
+        WHERE v2.f1 NOT IN (
+                SELECT 1 UNION
+                SELECT 247
+        )
+";
+EXECUTE st1;
+f1	f4	f1	f2
+7	y	10	7
+deallocate prepare st1;
+DROP VIEW v2;
+DROP TABLE t1,t2;
+#
+# LP bug #887458 Crash in subselect_union_engine::no_rows with
+# double UNION and join_cache_level=3,8
+# (IN/ALL/ANY optimizations should not be applied to fake_select)
+CREATE TABLE t2 ( a int, b varchar(1)) ;
+INSERT IGNORE INTO t2 VALUES (8,'y'),(8,'y');
+CREATE TABLE t1 ( b varchar(1)) ;
+INSERT IGNORE INTO t1 VALUES (NULL),(NULL);
+set @save_join_cache_level=@@join_cache_level;
+SET SESSION join_cache_level=3;
+SELECT *
+FROM t1, t2
+WHERE t2.b IN (
+SELECT 'm' UNION
+SELECT 'm'
+) OR t1.b <> SOME (
+SELECT 'v' UNION
+SELECT 't'
+);
+b	a	b
+set @@join_cache_level= @save_join_cache_level;
+drop table t1,t2;
+#
+# LP bug #885162 Got error 124 from storage engine with UNION inside
+# subquery and join_cache_level=3..8
+# (IN/ALL/ANY optimizations should not be applied to fake_select)
+#
+CREATE TABLE t1 (
+f1 varchar(1) DEFAULT NULL
+);
+INSERT INTO t1 VALUES ('c');
+set @save_join_cache_level=@@join_cache_level;
+SET SESSION join_cache_level=8;
+SELECT * FROM t1 WHERE t1.f1 IN ( SELECT 'k' UNION SELECT 'e' );
+f1
+set @@join_cache_level= @save_join_cache_level;
+drop table t1;
+#
+# LP BUG#747278 incorrect values of the NULL (no rows) single 
+# row subquery requested via element_index() interface
+#
+CREATE TABLE t1 (f1a int, f1b int) ;
+INSERT IGNORE INTO t1 VALUES (1,1),(2,2);
+CREATE TABLE t2 ( f2 int);
+INSERT IGNORE INTO t2 VALUES (3),(4);
+CREATE TABLE t3 (f3a int default 1, f3b int default 2);
+INSERT INTO t3 VALUES (1,1),(2,2);
+set @old_optimizer_switch = @@session.optimizer_switch;
+set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off';
+SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
+(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a,f3a  FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
+(SELECT f3a,f3a  FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
+(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
+(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
+NULL
+SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
+(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a,f3a  FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
+(SELECT f3a,f3a  FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
+(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
+(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
+NULL
+set @@session.optimizer_switch=@old_optimizer_switch;
+SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
+(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a,f3a  FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
+(SELECT f3a,f3a  FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
+(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
+(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
+NULL
+SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
+(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a,f3a  FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
+(SELECT f3a,f3a  FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
+(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
+NULL
+NULL
+SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
+(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
+NULL
+select (null, null) = (null, null);
+(null, null) = (null, null)
+NULL
+SELECT (SELECT f3a, f3a FROM t3  where f3a > 3) = (0, 0);
+(SELECT f3a, f3a FROM t3  where f3a > 3) = (0, 0)
+NULL
+drop tables t1,t2,t3;
+#
+# LP BUG#825051 Wrong result with date/datetime and subquery with GROUP BY and in_to_exists
+#
+CREATE TABLE t1 (a date, KEY (a)) ;
+INSERT INTO t1 VALUES ('2009-01-01'),('2009-02-02');
+set @old_optimizer_switch = @@optimizer_switch;
+SET @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off';
+EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	index	NULL	a	4	NULL	2	Using where; Using index
+2	DEPENDENT SUBQUERY	t1	index_subquery	a	a	4	func	2	Using index
+SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
+a
+2009-01-01
+2009-02-02
+SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquery_cache=off';
+EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	index	NULL	a	4	NULL	2	Using where; Using index
+2	MATERIALIZED	t1	index	NULL	a	4	NULL	2	Using index
+SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1);
+a
+2009-01-01
+2009-02-02
+set @@optimizer_switch=@old_optimizer_switch;
+drop table t1;
+#
+# LP BUG#908269 incorrect condition in case of subqueries depending
+# on constant tables
+#
+CREATE TABLE t1 ( a INT );
+INSERT INTO t1 VALUES (1),(5);
+CREATE TABLE t2 ( b INT ) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1);
+CREATE TABLE t3 ( c INT );
+INSERT INTO t3 VALUES (4),(5);
+SET optimizer_switch='subquery_cache=off';
+SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
+( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) )
+1
+NULL
+SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1;
+( SELECT b FROM t2 WHERE b = a OR b * 0)
+1
+NULL
+SELECT ( SELECT b FROM t2 WHERE b = a OR rand() * 0) FROM t1;
+( SELECT b FROM t2 WHERE b = a OR rand() * 0)
+1
+NULL
+drop table t1,t2,t3;
+set optimizer_switch=@subselect_tmp;
+#
+# LP BUG#905353 Wrong non-empty result with a constant table,
+# aggregate function in subquery, MyISAM or Aria
+#
+CREATE TABLE t1 ( a INT ) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1);
+SELECT a FROM t1 WHERE ( SELECT MIN(a) = 100 );
+a
+drop table t1;
+#
+# LP BUG#985667 Wrong result with subquery in SELECT clause, and constant table in 
+# main query and implicit grouping
+#
+CREATE TABLE t1 (f1 int) engine=MyISAM;
+INSERT INTO t1 VALUES (7),(8);
+CREATE TABLE t2 (f2 int, f3 varchar(1)) engine=MyISAM;
+INSERT INTO t2 VALUES (3,'f');
+EXPLAIN
+SELECT COUNT(f1), (SELECT f1 FROM t1 WHERE f2 > 0 limit 1) AS f4 FROM t2, t1 WHERE 'v'= f3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
+SELECT COUNT(f1), (SELECT f1 FROM t1 WHERE f2 > 0 limit 1) AS f4 FROM t2, t1 WHERE 'v'= f3;
+COUNT(f1)	f4
+0	NULL
+EXPLAIN
+SELECT COUNT(f1), exists(SELECT f1 FROM t1 WHERE f2 > 0 limit 1) AS f4 FROM t2, t1 WHERE 'v'= f3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
+SELECT COUNT(f1), exists(SELECT f1 FROM t1 WHERE f2 > 0 limit 1) AS f4 FROM t2, t1 WHERE 'v'= f3;
+COUNT(f1)	f4
+0	0
+EXPLAIN
+SELECT COUNT(f1), f2 > ALL (SELECT f1 FROM t1 WHERE f2 > 0) AS f4 FROM t2, t1 WHERE 'v'= f3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+SELECT COUNT(f1), f2 > ALL (SELECT f1 FROM t1 WHERE f2 > 0) AS f4 FROM t2, t1 WHERE 'v'= f3;
+COUNT(f1)	f4
+0	1
+EXPLAIN
+SELECT COUNT(f1), f2 IN (SELECT f1 FROM t1 WHERE f2 > 0) AS f4 FROM t2, t1 WHERE 'v'= f3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+SELECT COUNT(f1), f2 IN (SELECT f1 FROM t1 WHERE f2 > 0) AS f4 FROM t2, t1 WHERE 'v'= f3;
+COUNT(f1)	f4
+0	0
+drop table t1,t2;
+#
+# LP BUG#1002079 Server crashes in Item_singlerow_subselect::val_int with constant table,
+# HAVING, UNION in subquery
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (7),(0);
+CREATE TABLE t2 (b INT);
+EXPLAIN
+SELECT SUM(a) AS f1, a AS f2 FROM (t1, t2) HAVING f2 >= ALL (SELECT 4 UNION SELECT 5) AND f1 = 7;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	system	NULL	NULL	NULL	NULL	0	const row not found
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
+SELECT SUM(a) AS f1, a AS f2 FROM (t1, t2) HAVING f2 >= ALL (SELECT 4 UNION SELECT 5) AND f1 = 7;
+f1	f2
+drop table t1,t2;
+#
+# LP BUG#1008686 Server crashes in subselect_union_engine::no_rows on SELECT with impossible
+# WHERE and UNION in HAVING
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (1),(7);
+EXPLAIN
+SELECT MIN(a) AS min_a, a FROM t1 WHERE 0 HAVING a NOT IN ( SELECT 2 UNION SELECT 5 ) OR min_a != 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	DEPENDENT SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+3	DEPENDENT UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
+SELECT MIN(a) AS min_a, a FROM t1 WHERE 0 HAVING a NOT IN ( SELECT 2 UNION SELECT 5 ) OR min_a != 1;
+min_a	a
+EXPLAIN
+SELECT MIN(a) AS min_a, a FROM t1 WHERE 1=2 HAVING a NOT IN ( SELECT a from t1 UNION select a+1 from t1 ) OR min_a != 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+3	DEPENDENT UNION	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
+SELECT MIN(a) AS min_a, a FROM t1 WHERE 1=2 HAVING a NOT IN ( SELECT a from t1 UNION select a+1 from t1 ) OR min_a != 1;
+min_a	a
+drop table t1;
+#
+# MDEV-367: Different results with and without subquery_cache on
+# a query with a constant NOT IN condition
+#
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2),(3);
+set @mdev367_optimizer_switch = @@optimizer_switch;
+set optimizer_switch = 'subquery_cache=on';
+SELECT * FROM t1 WHERE ( 3, 3 ) NOT IN ( SELECT NULL, NULL ) OR a > 100;
+a
+SELECT *, ( 3, 3 ) NOT IN ( SELECT NULL, NULL ) FROM t1;
+a	( 3, 3 ) NOT IN ( SELECT NULL, NULL )
+1	NULL
+2	NULL
+3	NULL
+set optimizer_switch=@mdev367_optimizer_switch;
+set optimizer_switch = 'subquery_cache=off';
+SELECT * FROM t1 WHERE ( 3, 3 ) NOT IN ( SELECT NULL, NULL ) OR a > 100;
+a
+SELECT *, ( 3, 3 ) NOT IN ( SELECT NULL, NULL ) FROM t1;
+a	( 3, 3 ) NOT IN ( SELECT NULL, NULL )
+1	NULL
+2	NULL
+3	NULL
+set optimizer_switch=@mdev367_optimizer_switch;
+DROP TABLE t1;
+#
+# MDEV-521 single value subselect transformation problem
+#
+CREATE TABLE t1 (f1 char(2), PRIMARY KEY (f1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('u1'),('u2');
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+FLUSH TABLES;
+SELECT a.* FROM t1 a WHERE ( SELECT EXISTS ( SELECT 1 FROM t1 b WHERE b.f1 = a.f1 ) );
+f1
+u1
+u2
+DROP TABLE t1;
+# return optimizer switch changed in the beginning of this test
+set optimizer_switch=@subselect_tmp;
+#
+# lp:944706 Query with impossible or constant subquery in WHERE or HAVING is not
+# precomputed and thus not part of optimization
+#
+CREATE TABLE t1 ( a VARCHAR(16), KEY (a) );
+INSERT INTO t1 VALUES ('Abilene'),('Akron'),('Albany'),('Albuquerque'),('Alexandria'),('Allentown'),
+('Amarillo'),('Anaheim'),('Anchorage'),('Ann Arbor'),('Arden-Arcade');
+EXPLAIN
+SELECT MAX( alias2.a ) AS field
+FROM t1 AS alias1, t1 AS alias2, t1 AS alias3
+WHERE alias1.a = alias2.a OR alias1.a = 'y'
+HAVING field>'B' AND ( 'Moscow' ) IN ( SELECT a FROM t1 );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible HAVING
+2	SUBQUERY	t1	index_subquery	a	a	19	const	1	Using index; Using where
+SELECT MAX( alias2.a ) AS field
+FROM t1 AS alias1, t1 AS alias2, t1 AS alias3
+WHERE alias1.a = alias2.a OR alias1.a = 'y'
+HAVING field>'B' AND ( 'Moscow' ) IN ( SELECT a FROM t1 );
+field
+EXPLAIN
+SELECT MAX( alias2.a )
+FROM t1 AS alias1, t1 AS alias2, t1 AS alias3
+WHERE alias1.a = alias2.a OR ('Moscow') IN ( SELECT a FROM t1 );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	alias1	index	a	a	19	NULL	11	Using where; Using index
+1	PRIMARY	alias2	ref	a	a	19	test.alias1.a	2	Using index
+1	PRIMARY	alias3	index	NULL	a	19	NULL	11	Using index; Using join buffer (flat, BNL join)
+2	SUBQUERY	t1	index_subquery	a	a	19	const	1	Using index; Using where
+SELECT MAX( alias2.a )
+FROM t1 AS alias1, t1 AS alias2, t1 AS alias3
+WHERE alias1.a = alias2.a OR ('Moscow') IN ( SELECT a FROM t1 );
+MAX( alias2.a )
+Arden-Arcade
+drop table t1;
+#
+# MDEV-277 CHEAP SQ: Server crashes in st_join_table::get_examined_rows
+# with semijoin+materialization, IN and = subqueries
+#
+CREATE TABLE t1 (a1 INT);
+INSERT INTO t1 VALUES (4),(6);
+CREATE TABLE t2 (b1 INT);
+INSERT INTO t2 VALUES (1),(7);
+EXPLAIN
+SELECT * FROM t1
+WHERE a1 = (SELECT COUNT(*) FROM t1 WHERE a1 IN (SELECT a1 FROM t1, t2));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
+2	SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
+3	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	
+3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
+SELECT * FROM t1
+WHERE a1 = (SELECT COUNT(*) FROM t1 WHERE a1 IN (SELECT a1 FROM t1, t2));
+a1
+drop table t1, t2;
+#
+# MDEV-287 CHEAP SQ: A query with subquery in SELECT list, EXISTS,
+# inner joins takes hundreds times longer
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (1),(7);
+CREATE TABLE t2 (b INT);
+INSERT INTO t2 VALUES (4),(5);
+CREATE TABLE t3 (c INT);
+INSERT INTO t3 VALUES (8),(3);
+set @@expensive_subquery_limit= 0;
+EXPLAIN
+SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+FROM t2 alias1, t1 alias2, t1 alias3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	alias1	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	alias2	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
+1	PRIMARY	alias3	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
+3	SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	2	
+flush status;
+SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+FROM t2 alias1, t1 alias2, t1 alias3;
+(SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+show status like "subquery_cache%";
+Variable_name	Value
+Subquery_cache_hit	6
+Subquery_cache_miss	2
+show status like '%Handler_read%';
+Variable_name	Value
+Handler_read_first	0
+Handler_read_key	8
+Handler_read_last	0
+Handler_read_next	0
+Handler_read_prev	0
+Handler_read_rnd	0
+Handler_read_rnd_deleted	0
+Handler_read_rnd_next	22
+set @@expensive_subquery_limit= default;
+EXPLAIN
+SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+FROM t2 alias1, t1 alias2, t1 alias3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	alias1	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	alias2	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
+1	PRIMARY	alias3	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
+2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
+2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
+3	SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	2	
+flush status;
+SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+FROM t2 alias1, t1 alias2, t1 alias3;
+(SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+show status like "subquery_cache%";
+Variable_name	Value
+Subquery_cache_hit	0
+Subquery_cache_miss	0
+show status like '%Handler_read%';
+Variable_name	Value
+Handler_read_first	0
+Handler_read_key	0
+Handler_read_last	0
+Handler_read_next	0
+Handler_read_prev	0
+Handler_read_rnd	0
+Handler_read_rnd_deleted	0
+Handler_read_rnd_next	16
+drop table t1, t2, t3;
+#
+# MDEV-288 CHEAP SQ: Valgrind warnings "Memory lost" with IN and EXISTS nested subquery, materialization+semijoin
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (0),(8);
+CREATE TABLE t2 (b INT PRIMARY KEY);
+INSERT INTO t2 VALUES (1),(2);
+EXPLAIN
+SELECT * FROM t1 WHERE 4 IN (SELECT MAX(b) FROM t2 WHERE EXISTS (SELECT * FROM t1));
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	MATERIALIZED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+3	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
+SELECT * FROM t1 WHERE 4 IN (SELECT MAX(b) FROM t2 WHERE EXISTS (SELECT * FROM t1));
+a
+drop table t1,t2;
+#
+# MDEV-410: EXPLAIN shows type=range, while SHOW EXPLAIN and userstat show full table scan is used
+#
+CREATE TABLE t1 (a VARCHAR(3) PRIMARY KEY) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('USA');
+CREATE TABLE t2 (b INT, c VARCHAR(52), KEY(b)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3813,'United States'),(3940,'Russia');
+CREATE TABLE t3 (d INT, KEY(d)) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (12),(22),(9),(45);
+create table t4 like t3;
+insert into t4 select * from t3;
+# This should not show range access for table t2
+explain
+SELECT MIN(b) FROM ( SELECT * FROM t1, t2, t3 WHERE d = b ) AS alias1 
+WHERE SLEEP(0.1) OR c < 'p' OR b = ( SELECT MIN(b) FROM t2 );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	t2	ALL	b	NULL	NULL	NULL	2	Using where
+1	PRIMARY	t3	ref	d	d	5	test.t2.b	2	Using where; Using index
+3	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+set @tmp_mdev410=@@global.userstat;
+set global userstat=on;
+flush table_statistics;
+flush index_statistics;
+SELECT MIN(b) FROM ( SELECT * FROM t1, t2, t3 WHERE d = b ) AS alias1 
+WHERE SLEEP(0.1) OR c < 'p' OR b = ( SELECT MIN(b) FROM t2 );
+MIN(b)
+NULL
+# The following shows that t2 was indeed scanned with a full scan.
+show table_statistics;
+Table_schema	Table_name	Rows_read	Rows_changed	Rows_changed_x_#indexes
+test	t1	2	0	0
+test	t2	3	0	0
+show index_statistics;
+Table_schema	Table_name	Index_name	Rows_read
+test	t2	b	1
+set global userstat=@tmp_mdev410;
+DROP TABLE t1,t2,t3,t4;
+#
+# MDEV-430: Server crashes in select_describe on EXPLAIN with 
+#    materialization+semijoin, 2 nested subqueries, aggregate functions
+#
+CREATE TABLE t1 (a INT, KEY(a));
+INSERT INTO t1 VALUES (1),(8);
+CREATE TABLE t2 (b INT, KEY(b));
+INSERT INTO t2 VALUES (45),(17),(20);
+EXPLAIN SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t1, t2 WHERE b = a GROUP BY a HAVING a <> 1 ) ;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	t1	index	a	a	5	NULL	2	Using where; Using index
+2	SUBQUERY	t2	ref	b	b	5	test.t1.a	2	Using index
+DROP TABLE t1,t2;
+#
+# MDEV-435: Expensive subqueries may be evaluated during optimization in merge_key_fields
+#
+CREATE TABLE t1 (a INT, KEY(a)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (8),(0);
+CREATE TABLE t2 (b INT, c VARCHAR(1)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (4,'j'),(6,'v');
+CREATE TABLE t3 (d VARCHAR(1)) ENGINE=MyISAM;
+INSERT INTO t3 VALUES ('b'),('c');
+EXPLAIN
+SELECT * FROM t1
+WHERE a = (SELECT MAX(b) FROM t2 WHERE c IN (SELECT MAX(d) FROM t3)) OR a = 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	index	a	a	5	NULL	2	Using where; Using index
+2	SUBQUERY	<subquery3>	ALL	distinct_key	NULL	NULL	NULL	1	
+2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
+3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	
+SELECT * FROM t1
+WHERE a = (SELECT MAX(b) FROM t2 WHERE c IN (SELECT MAX(d) FROM t3)) OR a = 10;
+a
+drop table t1, t2, t3;
+#
+# MDEV-405: Server crashes in test_if_skip_sort_order on EXPLAIN with GROUP BY and HAVING in EXISTS subquery
+#
+CREATE TABLE t1 (a INT, KEY(a));
+INSERT INTO t1 VALUES (1),(8);
+CREATE TABLE t2 (b INT, KEY(b));
+INSERT INTO t2 VALUES (45),(17),(20);
+EXPLAIN SELECT * FROM t1 WHERE EXISTS ( SELECT a FROM t1, t2 WHERE b = a GROUP BY a HAVING a <> 1 ) ;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	t1	index	a	a	5	NULL	2	Using where; Using index
+2	SUBQUERY	t2	ref	b	b	5	test.t1.a	2	Using index
+DROP TABLE t1,t2;
+set optimizer_switch=default;
+select @@optimizer_switch like '%exists_to_in=on%';
+@@optimizer_switch like '%exists_to_in=on%'
+0
diff --git a/mysql-test/r/subselect_innodb.result b/mysql-test/r/subselect_innodb.result
index 8932acf8ffd..0b339738432 100644
--- a/mysql-test/r/subselect_innodb.result
+++ b/mysql-test/r/subselect_innodb.result
@@ -372,7 +372,7 @@ SELECT SUM( c )
 FROM t2
 WHERE (SELECT DISTINCT b FROM t3) > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	const	PRIMARY	PRIMARY	4	const	1	Using where; Using index
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 3	SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	1	Using temporary
 SELECT *
diff --git a/mysql-test/r/subselect_mat.result b/mysql-test/r/subselect_mat.result
index 9bb26e8a6e0..53334dbc32b 100644
--- a/mysql-test/r/subselect_mat.result
+++ b/mysql-test/r/subselect_mat.result
@@ -1896,7 +1896,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (select max(`test`.`t2`.`c`) from `test`.`t2`) join `test`.`t1` where ((`test`.`t1`.`a` = `<subquery2>`.`MAX(c)`) and (`test`.`t1`.`b` = 7) and (<cache>(isnull(`<subquery2>`.`MAX(c)`)) or (`<subquery2>`.`MAX(c)` = 7)))
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (select max(`test`.`t2`.`c`) from `test`.`t2`) join `test`.`t1` where ((`test`.`t1`.`b` = 7) and (`test`.`t1`.`a` = `<subquery2>`.`MAX(c)`) and (<cache>(isnull(`<subquery2>`.`MAX(c)`)) or (`<subquery2>`.`MAX(c)` = 7)))
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
 a	b
diff --git a/mysql-test/r/subselect_mat_cost_bugs.result b/mysql-test/r/subselect_mat_cost_bugs.result
index 8c95c8637aa..24640154c59 100644
--- a/mysql-test/r/subselect_mat_cost_bugs.result
+++ b/mysql-test/r/subselect_mat_cost_bugs.result
@@ -100,7 +100,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t2	index	c3	c3	9	NULL	2	100.00	Using where; Using index; Using join buffer (flat, BNL join)
 Warnings:
 Note	1276	Field or reference 'test.t1.pk' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` where <expr_cache><`test`.`t1`.`c1`,`test`.`t1`.`pk`>(<in_optimizer>(`test`.`t1`.`c1`,<exists>(select `test`.`t1a`.`c1` from `test`.`t1b` join `test`.`t2` left join `test`.`t1a` on((2 and (`test`.`t1a`.`c2` = `test`.`t1b`.`pk`))) where ((`test`.`t1`.`pk` <> 0) and (<cache>(`test`.`t1`.`c1`) = `test`.`t1a`.`c1`) and (`test`.`t2`.`c3` = `test`.`t1b`.`c4`)))))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` where <expr_cache><`test`.`t1`.`c1`,`test`.`t1`.`pk`>(<in_optimizer>(`test`.`t1`.`c1`,<exists>(select `test`.`t1a`.`c1` from `test`.`t1b` join `test`.`t2` left join `test`.`t1a` on(((`test`.`t1a`.`c2` = `test`.`t1b`.`pk`) and 2)) where ((`test`.`t1`.`pk` <> 0) and (<cache>(`test`.`t1`.`c1`) = `test`.`t1a`.`c1`) and (`test`.`t2`.`c3` = `test`.`t1b`.`c4`)))))
 SELECT pk
 FROM t1
 WHERE c1 IN
diff --git a/mysql-test/r/subselect_no_mat.result b/mysql-test/r/subselect_no_mat.result
index ba3b8e791d2..ce9a4ad444f 100644
--- a/mysql-test/r/subselect_no_mat.result
+++ b/mysql-test/r/subselect_no_mat.result
@@ -436,7 +436,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select 1 AS `1` from `test`.`t1` where (1 = (select 1 union select 1))
+Note	1003	select 1 AS `1` from `test`.`t1` where 1
 drop table t1;
 CREATE TABLE `t1` (
 `numeropost` mediumint(8) unsigned NOT NULL auto_increment,
@@ -565,10 +565,10 @@ Warnings:
 Note	1003	select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where (`test`.`t1`.`numeropost` = '1')
 EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM t1 WHERE numeropost='1');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using where; Using index
+1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using index
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
-Note	1003	select `test`.`t1`.`numreponse` AS `numreponse` from `test`.`t1` where ((`test`.`t1`.`numeropost` = '1') and (`test`.`t1`.`numreponse` = (select max(`test`.`t1`.`numreponse`) from `test`.`t1` where (`test`.`t1`.`numeropost` = '1'))))
+Note	1003	select 3 AS `numreponse` from `test`.`t1` where ((1 = '1'))
 drop table t1;
 CREATE TABLE t1 (a int(1));
 INSERT INTO t1 VALUES (1);
@@ -1378,7 +1378,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
 insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
 explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ref	salary	salary	5	const	0	0.00	Using where
+1	PRIMARY	t1	ref	salary	salary	5	const	1	100.00	Using where
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
 Note	1003	select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
@@ -1464,7 +1464,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	75.00	Using where; Using join buffer (flat, BNL join)
 1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`b`))
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (`test`.`t1`.`a` = `test`.`t2`.`a`))
 drop table t1, t2, t3;
 create table t1 (a int, b int, index a (a,b));
 create table t2 (a int, index a (a));
@@ -1507,7 +1507,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t3	index	a	a	5	NULL	3	100.00	Using where; Using index
 1	PRIMARY	t1	ref	a	a	10	test.t2.a,test.t3.a	116	100.00	Using index; FirstMatch(t2)
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` = `test`.`t3`.`a`))
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`b` = `test`.`t3`.`a`) and (`test`.`t1`.`a` = `test`.`t2`.`a`))
 insert into t1 values (3,31);
 select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
 a
@@ -2979,7 +2979,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	9	100.00	Using where; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`two` = `test`.`t1`.`two`) and (`test`.`t2`.`one` = `test`.`t1`.`one`) and (`test`.`t2`.`flag` = 'N'))
+Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N') and (`test`.`t2`.`one` = `test`.`t1`.`one`) and (`test`.`t2`.`two` = `test`.`t1`.`two`))
 explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	
@@ -6913,7 +6913,7 @@ INSERT INTO t2 VALUES (1),(2);
 EXPLAIN
 SELECT * FROM t1 WHERE 4 IN (SELECT MAX(b) FROM t2 WHERE EXISTS (SELECT * FROM t1));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 3	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
 SELECT * FROM t1 WHERE 4 IN (SELECT MAX(b) FROM t2 WHERE EXISTS (SELECT * FROM t1));
diff --git a/mysql-test/r/subselect_no_opts.result b/mysql-test/r/subselect_no_opts.result
index 13467916039..e017e67cfe6 100644
--- a/mysql-test/r/subselect_no_opts.result
+++ b/mysql-test/r/subselect_no_opts.result
@@ -432,7 +432,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select 1 AS `1` from `test`.`t1` where (1 = (select 1 union select 1))
+Note	1003	select 1 AS `1` from `test`.`t1` where 1
 drop table t1;
 CREATE TABLE `t1` (
 `numeropost` mediumint(8) unsigned NOT NULL auto_increment,
@@ -561,10 +561,10 @@ Warnings:
 Note	1003	select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where (`test`.`t1`.`numeropost` = '1')
 EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM t1 WHERE numeropost='1');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using where; Using index
+1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using index
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
-Note	1003	select `test`.`t1`.`numreponse` AS `numreponse` from `test`.`t1` where ((`test`.`t1`.`numeropost` = '1') and (`test`.`t1`.`numreponse` = (select max(`test`.`t1`.`numreponse`) from `test`.`t1` where (`test`.`t1`.`numeropost` = '1'))))
+Note	1003	select 3 AS `numreponse` from `test`.`t1` where ((1 = '1'))
 drop table t1;
 CREATE TABLE t1 (a int(1));
 INSERT INTO t1 VALUES (1);
@@ -1374,7 +1374,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
 insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
 explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ref	salary	salary	5	const	0	0.00	Using where
+1	PRIMARY	t1	ref	salary	salary	5	const	1	100.00	Using where
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
 Note	1003	select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
diff --git a/mysql-test/r/subselect_no_scache.result b/mysql-test/r/subselect_no_scache.result
index a75c6dc5966..492321c5d81 100644
--- a/mysql-test/r/subselect_no_scache.result
+++ b/mysql-test/r/subselect_no_scache.result
@@ -435,7 +435,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select 1 AS `1` from `test`.`t1` where (1 = (select 1 union select 1))
+Note	1003	select 1 AS `1` from `test`.`t1` where 1
 drop table t1;
 CREATE TABLE `t1` (
 `numeropost` mediumint(8) unsigned NOT NULL auto_increment,
@@ -564,10 +564,10 @@ Warnings:
 Note	1003	select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where (`test`.`t1`.`numeropost` = '1')
 EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM t1 WHERE numeropost='1');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using where; Using index
+1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using index
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
-Note	1003	select `test`.`t1`.`numreponse` AS `numreponse` from `test`.`t1` where ((`test`.`t1`.`numeropost` = '1') and (`test`.`t1`.`numreponse` = (select max(`test`.`t1`.`numreponse`) from `test`.`t1` where (`test`.`t1`.`numeropost` = '1'))))
+Note	1003	select 3 AS `numreponse` from `test`.`t1` where ((1 = '1'))
 drop table t1;
 CREATE TABLE t1 (a int(1));
 INSERT INTO t1 VALUES (1);
@@ -1377,7 +1377,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
 insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
 explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ref	salary	salary	5	const	0	0.00	Using where
+1	PRIMARY	t1	ref	salary	salary	5	const	1	100.00	Using where
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
 Note	1003	select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
@@ -1463,7 +1463,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	75.00	Using where; Using join buffer (flat, BNL join)
 1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`b`))
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (`test`.`t1`.`a` = `test`.`t2`.`a`))
 drop table t1, t2, t3;
 create table t1 (a int, b int, index a (a,b));
 create table t2 (a int, index a (a));
@@ -1506,7 +1506,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t3	index	a	a	5	NULL	3	100.00	Using where; Using index
 1	PRIMARY	t1	ref	a	a	10	test.t2.a,test.t3.a	116	100.00	Using index; FirstMatch(t2)
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` = `test`.`t3`.`a`))
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`b` = `test`.`t3`.`a`) and (`test`.`t1`.`a` = `test`.`t2`.`a`))
 insert into t1 values (3,31);
 select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
 a
@@ -2979,7 +2979,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	100.00	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	9	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N'))
+Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where (`test`.`t2`.`flag` = 'N')
 explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	100.00	
diff --git a/mysql-test/r/subselect_no_semijoin.result b/mysql-test/r/subselect_no_semijoin.result
index 34cdb17e23e..eb92936e85d 100644
--- a/mysql-test/r/subselect_no_semijoin.result
+++ b/mysql-test/r/subselect_no_semijoin.result
@@ -432,7 +432,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select 1 AS `1` from `test`.`t1` where (1 = (select 1 union select 1))
+Note	1003	select 1 AS `1` from `test`.`t1` where 1
 drop table t1;
 CREATE TABLE `t1` (
 `numeropost` mediumint(8) unsigned NOT NULL auto_increment,
@@ -561,10 +561,10 @@ Warnings:
 Note	1003	select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where (`test`.`t1`.`numeropost` = '1')
 EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM t1 WHERE numeropost='1');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using where; Using index
+1	PRIMARY	t1	const	PRIMARY,numreponse	PRIMARY	7	const,const	1	100.00	Using index
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
-Note	1003	select `test`.`t1`.`numreponse` AS `numreponse` from `test`.`t1` where ((`test`.`t1`.`numeropost` = '1') and (`test`.`t1`.`numreponse` = (select max(`test`.`t1`.`numreponse`) from `test`.`t1` where (`test`.`t1`.`numeropost` = '1'))))
+Note	1003	select 3 AS `numreponse` from `test`.`t1` where ((1 = '1'))
 drop table t1;
 CREATE TABLE t1 (a int(1));
 INSERT INTO t1 VALUES (1);
@@ -1374,7 +1374,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal
 insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000);
 explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ref	salary	salary	5	const	0	0.00	Using where
+1	PRIMARY	t1	ref	salary	salary	5	const	1	100.00	Using where
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 Warnings:
 Note	1003	select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`))
diff --git a/mysql-test/r/subselect_sj.result b/mysql-test/r/subselect_sj.result
index d9fa9853da5..92c626eca61 100644
--- a/mysql-test/r/subselect_sj.result
+++ b/mysql-test/r/subselect_sj.result
@@ -74,7 +74,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t10	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using where
 1	PRIMARY	t12	eq_ref	PRIMARY	PRIMARY	4	test.t10.a	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t12` join `test`.`t1` where ((`test`.`t10`.`pk` = `test`.`t1`.`a`) and (`test`.`t12`.`pk` = `test`.`t10`.`a`))
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t12` join `test`.`t1` where ((`test`.`t12`.`pk` = `test`.`t10`.`a`) and (`test`.`t10`.`pk` = `test`.`t1`.`a`))
 subqueries within outer joins go into ON expr.
 explAin extended
 select * from t1 left join (t2 A, t2 B) on ( A.A= t1.A And B.A in (select pk from t10));
@@ -84,7 +84,7 @@ id	select_type	tABle	type	possiBle_keys	key	key_len	ref	rows	filtered	ExtrA
 1	PRIMARY	B	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 2	MATERIALIZED	t10	index	PRIMARY	PRIMARY	4	NULL	10	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on((<in_optimizer>(`test`.`B`.`A`,`test`.`B`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`B`.`A` in <temporAry tABle> on distinct_key where ((`test`.`B`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`A`.`A` = `test`.`t1`.`A`))) where 1
+Note	1003	select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on(((`test`.`A`.`A` = `test`.`t1`.`A`) And <in_optimizer>(`test`.`B`.`A`,`test`.`B`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`B`.`A` in <temporAry tABle> on distinct_key where ((`test`.`B`.`A` = `<suBquery2>`.`pk`))))))) where 1
 t2 should be wrapped into OJ-nest, so we have "t1 LJ (t2 J t10)"
 explAin extended
 select * from t1 left join t2 on (t2.A= t1.A And t2.A in (select pk from t10));
@@ -93,7 +93,7 @@ id	select_type	tABle	type	possiBle_keys	key	key_len	ref	rows	filtered	ExtrA
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 2	MATERIALIZED	t10	index	PRIMARY	PRIMARY	4	NULL	10	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on((<in_optimizer>(`test`.`t2`.`A`,`test`.`t2`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`t2`.`A` in <temporAry tABle> on distinct_key where ((`test`.`t2`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`t2`.`A` = `test`.`t1`.`A`))) where 1
+Note	1003	select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on(((`test`.`t2`.`A` = `test`.`t1`.`A`) And <in_optimizer>(`test`.`t1`.`A`,`test`.`t1`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`t1`.`A` in <temporAry tABle> on distinct_key where ((`test`.`t1`.`A` = `<suBquery2>`.`pk`))))))) where 1
 we shouldn't flatten if we're going to get a join of > MAX_TABLES.
 explain select * from 
 t1 s00, t1 s01,  t1 s02, t1 s03, t1 s04,t1 s05,t1 s06,t1 s07,t1 s08,t1 s09,
@@ -501,7 +501,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t0.pk	1	100.00	Using where
 1	PRIMARY	t2	ref	vkey	vkey	4	test.t1.vnokey	2	100.00	Using index; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t0`.`vkey` AS `vkey` from `test`.`t0` `t1` semi join (`test`.`t0` `t2`) join `test`.`t0` where ((`test`.`t2`.`vkey` = `test`.`t1`.`vnokey`) and (`test`.`t1`.`pk` = `test`.`t0`.`pk`))
+Note	1003	select `test`.`t0`.`vkey` AS `vkey` from `test`.`t0` `t1` semi join (`test`.`t0` `t2`) join `test`.`t0` where ((`test`.`t1`.`pk` = `test`.`t0`.`pk`) and (`test`.`t2`.`vkey` = `test`.`t1`.`vnokey`))
 SELECT vkey FROM t0 WHERE pk IN 
 (SELECT t1.pk FROM t0 t1 JOIN t0 t2 ON t2.vkey = t1.vnokey);
 vkey
@@ -814,7 +814,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`c` = `test`.`t1`.`c`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`c` = `test`.`t1`.`c`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, c) IN (SELECT b, c FROM t2 WHERE pk > 0);
 pk
 1
@@ -824,7 +824,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`d` = `test`.`t1`.`d`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`d` = `test`.`t1`.`d`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, d) IN (SELECT b, d FROM t2 WHERE pk > 0);
 pk
 2
@@ -833,7 +833,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`e` = `test`.`t1`.`e`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`e` = `test`.`t1`.`e`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, e) IN (SELECT b, e FROM t2 WHERE pk > 0);
 pk
 1
@@ -843,7 +843,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`f` = `test`.`t1`.`f`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`f` = `test`.`t1`.`f`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, f) IN (SELECT b, f FROM t2 WHERE pk > 0);
 pk
 1
@@ -853,7 +853,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`g` = `test`.`t1`.`g`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`g` = `test`.`t1`.`g`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, g) IN (SELECT b, g FROM t2 WHERE pk > 0);
 pk
 1
@@ -863,7 +863,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`h` = `test`.`t1`.`h`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`h` = `test`.`t1`.`h`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, h) IN (SELECT b, h FROM t2 WHERE pk > 0);
 pk
 1
@@ -873,7 +873,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`i` = `test`.`t1`.`i`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`i` = `test`.`t1`.`i`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, i) IN (SELECT b, i FROM t2 WHERE pk > 0);
 pk
 1
@@ -883,7 +883,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`j` = `test`.`t1`.`j`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`j` = `test`.`t1`.`j`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, j) IN (SELECT b, j FROM t2 WHERE pk > 0);
 pk
 1
@@ -893,7 +893,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`k` = `test`.`t1`.`k`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`k` = `test`.`t1`.`k`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, k) IN (SELECT b, k FROM t2 WHERE pk > 0);
 pk
 1
@@ -1994,7 +1994,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where ((`test`.`t1`.`f2` = `test`.`t2`.`f2`) and (`test`.`t3`.`f1` = `test`.`t1`.`f1`) and (`test`.`t4`.`f2` = `test`.`t2`.`f3`))
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where ((`test`.`t4`.`f2` = `test`.`t2`.`f3`) and (`test`.`t3`.`f1` = `test`.`t1`.`f1`) and (`test`.`t1`.`f2` = `test`.`t2`.`f2`))
 SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
 f1	f2	f3	f3
 2	0	0	0
@@ -2783,6 +2783,16 @@ a	b
 deallocate prepare stmt;
 drop table t1,t2;
 #
+# MDEV-4335: Unexpected results when selecting on information_schema
+#
+CREATE TABLE t1 (db VARCHAR(64) DEFAULT NULL);
+INSERT INTO t1 VALUES ('mysql'),('information_schema');
+SELECT * FROM t1 WHERE db IN (SELECT `SCHEMA_NAME` FROM information_schema.SCHEMATA);
+db
+mysql
+information_schema
+DROP TABLE t1;
+#
 # MySQL Bug#13340270: assertion table->sort.record_pointers == __null
 #
 CREATE TABLE t1 (
diff --git a/mysql-test/r/subselect_sj2.result b/mysql-test/r/subselect_sj2.result
index 97e36cd705c..c4b9933ae07 100644
--- a/mysql-test/r/subselect_sj2.result
+++ b/mysql-test/r/subselect_sj2.result
@@ -456,7 +456,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ref	a	a	5	test.t0.a	1	100.00	Using where; FirstMatch(t2)
 Warnings:
 Note	1276	Field or reference 'test.t0.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t0`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) join `test`.`t0` where ((`test`.`t1`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`a` = `test`.`t0`.`a`))
+Note	1003	select `test`.`t0`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) join `test`.`t0` where ((`test`.`t2`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`b` = `test`.`t2`.`b`))
 update t1 set a=3, b=11 where a=4;
 update t2 set b=11 where a=3;
 select * from t0 where t0.a in 
diff --git a/mysql-test/r/subselect_sj2_jcl6.result b/mysql-test/r/subselect_sj2_jcl6.result
index e4030b8138b..d9b9815133c 100644
--- a/mysql-test/r/subselect_sj2_jcl6.result
+++ b/mysql-test/r/subselect_sj2_jcl6.result
@@ -468,7 +468,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ref	a	a	5	test.t0.a	1	100.00	Using where; FirstMatch(t2); Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
 Warnings:
 Note	1276	Field or reference 'test.t0.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t0`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) join `test`.`t0` where ((`test`.`t1`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`a` = `test`.`t0`.`a`))
+Note	1003	select `test`.`t0`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) join `test`.`t0` where ((`test`.`t2`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`b` = `test`.`t2`.`b`))
 update t1 set a=3, b=11 where a=4;
 update t2 set b=11 where a=3;
 # Not anymore:
diff --git a/mysql-test/r/subselect_sj2_mat.result b/mysql-test/r/subselect_sj2_mat.result
index f69befc8608..c91ee67a717 100644
--- a/mysql-test/r/subselect_sj2_mat.result
+++ b/mysql-test/r/subselect_sj2_mat.result
@@ -458,7 +458,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ref	a	a	5	test.t0.a	1	100.00	Using where; FirstMatch(t2)
 Warnings:
 Note	1276	Field or reference 'test.t0.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t0`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) join `test`.`t0` where ((`test`.`t1`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`a` = `test`.`t0`.`a`))
+Note	1003	select `test`.`t0`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) join `test`.`t0` where ((`test`.`t2`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`a` = `test`.`t0`.`a`) and (`test`.`t1`.`b` = `test`.`t2`.`b`))
 update t1 set a=3, b=11 where a=4;
 update t2 set b=11 where a=3;
 select * from t0 where t0.a in 
@@ -1124,3 +1124,267 @@ AND ( 6 ) IN
 ERROR 42000: The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay
 DROP TABLE t1, t2;
 set max_join_size= @tmp_906385;
+# 
+# mdev-3995: Wrong result for semijoin with materialization  
+# 
+set @save_optimizer_switch=@@optimizer_switch;
+CREATE TABLE t1 (
+cat_id int(10) unsigned NOT NULL,
+PRIMARY KEY (cat_id)
+) ENGINE=MyISAM;
+INSERT INTO t1 VALUES
+(709411),(709412),(709413),(709414),(709416),(709417),(709418),(709419),(709421),(709422),
+(709424),(709425),(709427),(709428),(709429),(709431),(709432),(709433),(709434),(709435),
+(709438),(709439),(709441),(709442),(709443),(709444),(709445),(709446),(709447),(709450),
+(709451),(709454),(709455),(709456),(709457),(709459),(709460),(709461),(709462),(709463),
+(709464),(709465),(709467),(709469),(709470),(709471),(709472),(709473),(709474),(709475),
+(709476),(709477),(709478),(709479),(709480),(709481),(709483),(709484),(709485),(709487),
+(709490),(709491),(709492),(709493),(709494),(709495),(709496),(709497),(709498),(709499),
+(709500),(709501),(709502),(709503),(709504),(709505),(709506),(709507),(709509),(709510),
+(709511),(709512),(709513),(709514),(709515),(709516),(709517),(709518),(709519),(709520),
+(709521),(709522),(709523),(709524),(709525),(709526),(709527),(709528),(709529),(709530),
+(709531),(709532),(709533),(709534),(709535),(709536),(709537),(709538),(709539),(709540),
+(709541),(709542),(709543),(709544),(709545),(709546),(709548),(709549),(709551),(709552),
+(709553),(709555),(709556),(709557),(709558),(709559),(709560),(709561),(709562),(709563),
+(709564),(709565),(709566),(709567),(709568),(709569),(709570),(709571),(709572),(709573),
+(709574),(709575),(709576),(709577),(709578),(709579),(709580),(709581),(709582),(709583),
+(709584),(709585),(709586),(709587),(709588),(709590),(709591),(709592),(709593),(709594),
+(709595),(709596),(709597),(709598),(709600),(709601),(709602),(709603),(709604),(709605),
+(709606),(709608),(709609),(709610),(709611),(709612),(709613),(709614),(709615),(709616),
+(709617),(709618),(709619),(709620),(709621),(709622),(709623),(709624),(709625),(709626),
+(709627),(709628),(709629),(709630),(709631),(709632),(709633),(709634),(709635),(709637),
+(709638),(709639),(709640),(709641),(709642),(709643),(709644),(709645),(709646),(709649),
+(709650),(709651),(709652),(709653),(709654),(709655),(709656),(709657),(709658),(709659);
+CREATE TABLE t2 (
+cat_id int(10) NOT NULL,
+KEY cat_id (cat_id)
+) ENGINE=MyISAM;
+INSERT INTO t2 VALUES
+(708742),(708755),(708759),(708761),(708766),(708769),(708796),(708798),(708824),(708825),
+(708838),(708844),(708861),(708882),(708887),(708889),(708890),(709586),(709626);
+CREATE TABLE t3 (
+sack_id int(10) unsigned NOT NULL,
+kit_id tinyint(3) unsigned NOT NULL DEFAULT '0',
+cat_id int(10) unsigned NOT NULL,
+PRIMARY KEY (sack_id,kit_id,cat_id)
+) ENGINE=MyISAM;
+INSERT INTO t3 VALUES
+(33479,6,708523),(33479,6,708632),(33479,6,709085),(33479,6,709586),(33479,6,709626);
+CREATE TABLE t4 (
+cat_id int(10) unsigned NOT NULL,
+KEY cat_id (cat_id)
+) ENGINE=MyISAM;
+INSERT INTO t4 (cat_id) SELECT cat_id from t2;
+set optimizer_switch='materialization=off';
+EXPLAIN
+SELECT count(*) FROM t1, t3 
+WHERE  t1.cat_id = t3.cat_id AND 
+t3.cat_id IN (SELECT cat_id FROM t2) AND 
+t3.sack_id = 33479 AND t3.kit_id = 6;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t3	ref	PRIMARY	PRIMARY	5	const,const	4	Using index
+1	PRIMARY	t2	ref	cat_id	cat_id	4	test.t3.cat_id	2	Using where; Using index; FirstMatch(t3)
+1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.cat_id	1	Using where; Using index
+SELECT count(*) FROM t1, t3 
+WHERE  t1.cat_id = t3.cat_id AND 
+t3.cat_id IN (SELECT cat_id FROM t2) AND 
+t3.sack_id = 33479 AND t3.kit_id = 6;
+count(*)
+2
+set optimizer_switch='materialization=on';
+EXPLAIN
+SELECT count(*) FROM t1, t3 
+WHERE  t1.cat_id = t3.cat_id AND 
+t3.cat_id IN (SELECT cat_id FROM t4) AND 
+t3.sack_id = 33479 AND t3.kit_id = 6;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t3	ref	PRIMARY	PRIMARY	5	const,const	4	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
+1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t3.cat_id	1	Using index
+2	MATERIALIZED	t4	index	cat_id	cat_id	4	NULL	19	Using index
+SELECT count(*) FROM t1, t3 
+WHERE  t1.cat_id = t3.cat_id AND 
+t3.cat_id IN (SELECT cat_id FROM t4) AND 
+t3.sack_id = 33479 AND t3.kit_id = 6;
+count(*)
+2
+EXPLAIN
+SELECT count(*) FROM t1, t3 
+WHERE  t1.cat_id = t3.cat_id AND 
+t3.cat_id IN (SELECT cat_id FROM t2) AND 
+t3.sack_id = 33479 AND t3.kit_id = 6;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t3	ref	PRIMARY	PRIMARY	5	const,const	4	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
+1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t3.cat_id	1	Using index
+2	MATERIALIZED	t2	index	cat_id	cat_id	4	NULL	19	Using index
+SELECT count(*) FROM t1, t3 
+WHERE  t1.cat_id = t3.cat_id AND 
+t3.cat_id IN (SELECT cat_id FROM t2) AND 
+t3.sack_id = 33479 AND t3.kit_id = 6;
+count(*)
+2
+DROP TABLE t1,t2,t3,t4;
+set optimizer_switch=@save_optimizer_switch;
+#
+# mdev-3913: LEFT JOIN with materialized multi-table IN subquery in WHERE
+#
+set @save_optimizer_switch=@@optimizer_switch;
+CREATE TABLE t1 (a1 char(1), b1 char(1), index idx(b1,a1));
+INSERT INTO t1 VALUES ('f','c'),('d','m'),('g','y');
+INSERT INTO t1 VALUES ('f','c'),('d','m'),('g','y');
+CREATE TABLE t2 (a2 char(1), b2 char(1));
+INSERT INTO t2 VALUES ('y','y'),('y','y'),('w','w');
+CREATE TABLE t3 (a3 int);
+INSERT INTO t3 VALUES (8),(6);
+CREATE TABLE t4 (a4 char(1), b4 char(1));
+INSERT INTO t4 VALUES ('y','y'),('y','y'),('w','w');
+set optimizer_switch='materialization=off';
+EXPLAIN EXTENDED
+SELECT * FROM t1 LEFT JOIN t2 ON ( b1 = a2 ) 
+WHERE ( b1, b1 )  IN ( SELECT a4, b4 FROM t3, t4);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Start temporary
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ref	idx	idx	2	test.t4.a4	1	100.00	Using index; End temporary
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`b1` AS `b1`,`test`.`t2`.`a2` AS `a2`,`test`.`t2`.`b2` AS `b2` from `test`.`t1` semi join (`test`.`t3` join `test`.`t4`) left join `test`.`t2` on((`test`.`t2`.`a2` = `test`.`t4`.`a4`)) where ((`test`.`t4`.`b4` = `test`.`t4`.`a4`) and (`test`.`t1`.`b1` = `test`.`t4`.`a4`))
+SELECT * FROM t1 LEFT JOIN t2 ON ( b1 = a2 ) 
+WHERE ( b1, b1 )  IN ( SELECT a4, b4 FROM t3, t4);
+a1	b1	a2	b2
+g	y	y	y
+g	y	y	y
+g	y	y	y
+g	y	y	y
+set optimizer_switch='materialization=on';
+EXPLAIN EXTENDED
+SELECT * FROM t1 LEFT JOIN t2 ON ( b1 = a2 ) 
+WHERE ( b1, b1 )  IN ( SELECT a4, b4 FROM t3, t4);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	100.00	
+1	PRIMARY	t1	ref	idx	idx	2	test.t4.a4	1	100.00	Using index
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`b1` AS `b1`,`test`.`t2`.`a2` AS `a2`,`test`.`t2`.`b2` AS `b2` from `test`.`t1` semi join (`test`.`t3` join `test`.`t4`) left join `test`.`t2` on(((`test`.`t1`.`b1` = `test`.`t4`.`a4`) and (`test`.`t2`.`a2` = `test`.`t4`.`a4`))) where ((`test`.`t4`.`b4` = `test`.`t4`.`a4`) and (`test`.`t1`.`b1` = `test`.`t4`.`a4`))
+SELECT * FROM t1 LEFT JOIN t2 ON ( b1 = a2 ) 
+WHERE ( b1, b1 )  IN ( SELECT a4, b4 FROM t3, t4);
+a1	b1	a2	b2
+g	y	y	y
+g	y	y	y
+g	y	y	y
+g	y	y	y
+DROP TABLE t1,t2,t3,t4;
+set optimizer_switch=@save_optimizer_switch;
+#
+# mdev-4172: LEFT JOIN with materialized multi-table IN subquery in WHERE
+#            and OR in ON condition
+#
+set @save_optimizer_switch=@@optimizer_switch;
+CREATE TABLE t1 (a1 int, c1 varchar(1));
+INSERT t1 VALUES (7,'v'), (3,'y');
+CREATE TABLE t2 (c2 varchar(1));
+INSERT INTO t2 VALUES ('y'), ('y');
+CREATE TABLE t3 (c3 varchar(1));
+INSERT INTO t3 VALUES
+('j'), ('v'), ('c'), ('m'), ('d'),
+('d'), ('y'), ('t'), ('d'), ('s');
+CREATE TABLE t4 (a4 int, c4 varchar(1));
+INSERT INTO t4 SELECT * FROM t1;
+set optimizer_switch='materialization=off';
+EXPLAIN EXTENDED
+SELECT * FROM t1 LEFT JOIN t2 ON (c2 = c1 OR c1 > 'z')
+WHERE c1 IN ( SELECT c4 FROM t3,t4 WHERE c3 = c4);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Start temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	10	100.00	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`c1` AS `c1`,`test`.`t2`.`c2` AS `c2` from `test`.`t1` semi join (`test`.`t3` join `test`.`t4`) left join `test`.`t2` on(((`test`.`t2`.`c2` = `test`.`t1`.`c1`) or (`test`.`t1`.`c1` > 'z'))) where ((`test`.`t4`.`c4` = `test`.`t1`.`c1`) and (`test`.`t3`.`c3` = `test`.`t1`.`c1`))
+SELECT * FROM t1 LEFT JOIN t2 ON (c2 = c1 OR c1 > 'z')
+WHERE c1 IN ( SELECT c4 FROM t3,t4 WHERE c3 = c4);
+a1	c1	c2
+3	y	y
+3	y	y
+7	v	NULL
+set optimizer_switch='materialization=on';
+EXPLAIN EXTENDED
+SELECT * FROM t1 LEFT JOIN t2 ON (c2 = c1 OR c1 > 'z')
+WHERE c1 IN ( SELECT c4 FROM t3,t4 WHERE c3 = c4);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	10	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`c1` AS `c1`,`test`.`t2`.`c2` AS `c2` from `test`.`t1` semi join (`test`.`t3` join `test`.`t4`) left join `test`.`t2` on(((`test`.`t2`.`c2` = `test`.`t1`.`c1`) or (`test`.`t1`.`c1` > 'z'))) where (`test`.`t3`.`c3` = `test`.`t4`.`c4`)
+SELECT * FROM t1 LEFT JOIN t2 ON (c2 = c1 OR c1 > 'z')
+WHERE c1 IN ( SELECT c4 FROM t3,t4 WHERE c3 = c4);
+a1	c1	c2
+3	y	y
+3	y	y
+7	v	NULL
+DROP TABLE t1,t2,t3,t4;
+set optimizer_switch=@save_optimizer_switch;
+#
+# mdev-4177: materialization of a subquery whose WHERE condition is OR
+# formula with two disjucts such that the second one is always false
+#
+set @save_optimizer_switch=@@optimizer_switch;
+set @save_join_cache_level=@@join_cache_level;
+CREATE TABLE t1 (i1 int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1), (7), (4), (8), (4);
+CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (7), (5);
+CREATE TABLE t3 (i3 int) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (7), (2), (9);
+set join_cache_level=3;
+set optimizer_switch='materialization=off,semijoin=off';
+EXPLAIN EXTENDED 
+SELECT * FROM t1 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 = i2 OR 1=2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	DEPENDENT SUBQUERY	t3	hash_ALL	NULL	#hash#$hj	5	func	3	100.00	Using where; Using join buffer (flat, BNLH join)
+Warnings:
+Note	1003	select `test`.`t1`.`i1` AS `i1` from `test`.`t1` where <expr_cache><`test`.`t1`.`i1`>(<in_optimizer>(`test`.`t1`.`i1`,<exists>(select `test`.`t3`.`i3` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (<cache>(`test`.`t1`.`i1`) = `test`.`t3`.`i3`)))))
+SELECT * FROM t1 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 = i2 OR 1=2);
+i1
+7
+set optimizer_switch='materialization=on,semijoin=on';
+EXPLAIN EXTENDED 
+SELECT * FROM t1 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 = i2 OR 1=2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	100.00	
+1	PRIMARY	t1	hash_ALL	NULL	#hash#$hj	5	test.t2.i2	5	100.00	Using where; Using join buffer (flat, BNLH join)
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	MATERIALIZED	t3	hash_ALL	NULL	#hash#$hj	5	test.t2.i2	3	100.00	Using where; Using join buffer (flat, BNLH join)
+Warnings:
+Note	1003	select `test`.`t1`.`i1` AS `i1` from `test`.`t1` semi join (`test`.`t2` join `test`.`t3`) where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (`test`.`t1`.`i1` = `test`.`t2`.`i2`))
+SELECT * FROM t1 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 = i2 OR 1=2);
+i1
+7
+EXPLAIN EXTENDED 
+SELECT * FROM t1 
+WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 > 0 AND i3 = i2 OR 1=2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	100.00	
+1	PRIMARY	t1	hash_ALL	NULL	#hash#$hj	5	test.t2.i2	5	100.00	Using where; Using join buffer (flat, BNLH join)
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+2	MATERIALIZED	t3	hash_ALL	NULL	#hash#$hj	5	test.t2.i2	3	100.00	Using where; Using join buffer (flat, BNLH join)
+Warnings:
+Note	1003	select `test`.`t1`.`i1` AS `i1` from `test`.`t1` semi join (`test`.`t2` join `test`.`t3`) where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (`test`.`t1`.`i1` = `test`.`t2`.`i2`) and (`test`.`t3`.`i3` > 0))
+SELECT * FROM t1 
+WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 > 0 AND i3 = i2 OR 1=2);
+i1
+7
+SELECT * FROM t1 
+WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 > 7 AND i3 = i2 OR 1=2);
+i1
+DROP TABLE t1,t2,t3;
+set join_cache_level= @save_join_cache_level;
+set optimizer_switch=@save_optimizer_switch;
diff --git a/mysql-test/r/subselect_sj_jcl6.result b/mysql-test/r/subselect_sj_jcl6.result
index 1ca8b44a0b8..04a54c9a371 100644
--- a/mysql-test/r/subselect_sj_jcl6.result
+++ b/mysql-test/r/subselect_sj_jcl6.result
@@ -87,7 +87,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t10	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
 1	PRIMARY	t12	eq_ref	PRIMARY	PRIMARY	4	test.t10.a	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t12` join `test`.`t1` where ((`test`.`t10`.`pk` = `test`.`t1`.`a`) and (`test`.`t12`.`pk` = `test`.`t10`.`a`))
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t12` join `test`.`t1` where ((`test`.`t12`.`pk` = `test`.`t10`.`a`) and (`test`.`t10`.`pk` = `test`.`t1`.`a`))
 subqueries within outer joins go into ON expr.
 explAin extended
 select * from t1 left join (t2 A, t2 B) on ( A.A= t1.A And B.A in (select pk from t10));
@@ -97,7 +97,7 @@ id	select_type	tABle	type	possiBle_keys	key	key_len	ref	rows	filtered	ExtrA
 1	PRIMARY	B	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join Buffer (incrementAl, BNL join)
 2	MATERIALIZED	t10	index	PRIMARY	PRIMARY	4	NULL	10	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on((<in_optimizer>(`test`.`B`.`A`,`test`.`B`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`B`.`A` in <temporAry tABle> on distinct_key where ((`test`.`B`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`A`.`A` = `test`.`t1`.`A`))) where 1
+Note	1003	select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on(((`test`.`A`.`A` = `test`.`t1`.`A`) And <in_optimizer>(`test`.`B`.`A`,`test`.`B`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`B`.`A` in <temporAry tABle> on distinct_key where ((`test`.`B`.`A` = `<suBquery2>`.`pk`))))))) where 1
 t2 should be wrapped into OJ-nest, so we have "t1 LJ (t2 J t10)"
 explAin extended
 select * from t1 left join t2 on (t2.A= t1.A And t2.A in (select pk from t10));
@@ -106,7 +106,7 @@ id	select_type	tABle	type	possiBle_keys	key	key_len	ref	rows	filtered	ExtrA
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join Buffer (flAt, BNL join)
 2	MATERIALIZED	t10	index	PRIMARY	PRIMARY	4	NULL	10	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on((<in_optimizer>(`test`.`t2`.`A`,`test`.`t2`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`t2`.`A` in <temporAry tABle> on distinct_key where ((`test`.`t2`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`t2`.`A` = `test`.`t1`.`A`))) where 1
+Note	1003	select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on(((`test`.`t2`.`A` = `test`.`t1`.`A`) And <in_optimizer>(`test`.`t1`.`A`,`test`.`t1`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`t1`.`A` in <temporAry tABle> on distinct_key where ((`test`.`t1`.`A` = `<suBquery2>`.`pk`))))))) where 1
 we shouldn't flatten if we're going to get a join of > MAX_TABLES.
 explain select * from 
 t1 s00, t1 s01,  t1 s02, t1 s03, t1 s04,t1 s05,t1 s06,t1 s07,t1 s08,t1 s09,
@@ -514,7 +514,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t0.pk	1	100.00	Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
 1	PRIMARY	t2	ref	vkey	vkey	4	test.t1.vnokey	2	100.00	Using index; FirstMatch(t1)
 Warnings:
-Note	1003	select `test`.`t0`.`vkey` AS `vkey` from `test`.`t0` `t1` semi join (`test`.`t0` `t2`) join `test`.`t0` where ((`test`.`t2`.`vkey` = `test`.`t1`.`vnokey`) and (`test`.`t1`.`pk` = `test`.`t0`.`pk`))
+Note	1003	select `test`.`t0`.`vkey` AS `vkey` from `test`.`t0` `t1` semi join (`test`.`t0` `t2`) join `test`.`t0` where ((`test`.`t1`.`pk` = `test`.`t0`.`pk`) and (`test`.`t2`.`vkey` = `test`.`t1`.`vnokey`))
 SELECT vkey FROM t0 WHERE pk IN 
 (SELECT t1.pk FROM t0 t1 JOIN t0 t2 ON t2.vkey = t1.vnokey);
 vkey
@@ -827,7 +827,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`c` = `test`.`t1`.`c`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`c` = `test`.`t1`.`c`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, c) IN (SELECT b, c FROM t2 WHERE pk > 0);
 pk
 1
@@ -837,7 +837,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`d` = `test`.`t1`.`d`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`d` = `test`.`t1`.`d`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, d) IN (SELECT b, d FROM t2 WHERE pk > 0);
 pk
 2
@@ -846,7 +846,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`e` = `test`.`t1`.`e`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`e` = `test`.`t1`.`e`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, e) IN (SELECT b, e FROM t2 WHERE pk > 0);
 pk
 1
@@ -856,7 +856,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`f` = `test`.`t1`.`f`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`f` = `test`.`t1`.`f`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, f) IN (SELECT b, f FROM t2 WHERE pk > 0);
 pk
 1
@@ -866,7 +866,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`g` = `test`.`t1`.`g`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`g` = `test`.`t1`.`g`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, g) IN (SELECT b, g FROM t2 WHERE pk > 0);
 pk
 1
@@ -876,7 +876,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`h` = `test`.`t1`.`h`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`h` = `test`.`t1`.`h`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, h) IN (SELECT b, h FROM t2 WHERE pk > 0);
 pk
 1
@@ -886,7 +886,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`i` = `test`.`t1`.`i`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`i` = `test`.`t1`.`i`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, i) IN (SELECT b, i FROM t2 WHERE pk > 0);
 pk
 1
@@ -896,7 +896,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`j` = `test`.`t1`.`j`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`j` = `test`.`t1`.`j`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, j) IN (SELECT b, j FROM t2 WHERE pk > 0);
 pk
 1
@@ -906,7 +906,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Using where; Rowid-ordered scan; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`k` = `test`.`t1`.`k`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0))
+Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`k` = `test`.`t1`.`k`) and (`test`.`t2`.`pk` > 0))
 SELECT pk FROM t1 WHERE (b, k) IN (SELECT b, k FROM t2 WHERE pk > 0);
 pk
 1
@@ -2008,7 +2008,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; Using join buffer (incremental, BNL join)
 2	MATERIALIZED	t4	index	f2	f2	5	NULL	2	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where ((`test`.`t1`.`f2` = `test`.`t2`.`f2`) and (`test`.`t3`.`f1` = `test`.`t1`.`f1`))
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`f1` = `test`.`t1`.`f1`) and (`test`.`t1`.`f2` = `test`.`t2`.`f2`))
 SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
 f1	f2	f3	f3
 2	0	0	0
@@ -2797,6 +2797,16 @@ a	b
 deallocate prepare stmt;
 drop table t1,t2;
 #
+# MDEV-4335: Unexpected results when selecting on information_schema
+#
+CREATE TABLE t1 (db VARCHAR(64) DEFAULT NULL);
+INSERT INTO t1 VALUES ('mysql'),('information_schema');
+SELECT * FROM t1 WHERE db IN (SELECT `SCHEMA_NAME` FROM information_schema.SCHEMATA);
+db
+information_schema
+mysql
+DROP TABLE t1;
+#
 # MySQL Bug#13340270: assertion table->sort.record_pointers == __null
 #
 CREATE TABLE t1 (
diff --git a/mysql-test/r/subselect_sj_mat.result b/mysql-test/r/subselect_sj_mat.result
index 20fee7fb7f8..717d6832415 100644
--- a/mysql-test/r/subselect_sj_mat.result
+++ b/mysql-test/r/subselect_sj_mat.result
@@ -86,7 +86,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	test.t1.a1,test.t1.a2	1	100.00	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; Using temporary
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from  <materialize> (select `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`) join `test`.`t1` where ((`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from  <materialize> (select `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`) join `test`.`t1` where ((`<subquery2>`.`b1` = `test`.`t1`.`a1`) and (`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`))
 select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1);
 a1	a2
 1 - 01	2 - 01
@@ -120,7 +120,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2i	index	it2i1,it2i2,it2i3	it2i3	#	NULL	5	50.00	Using where; Using index; LooseScan
 1	PRIMARY	t1i	ref	_it1_idx	_it1_idx	#	_ref_	1	100.00	
 Warnings:
-Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) where ((`test`.`t1i`.`a2` = `test`.`t2i`.`b2`) and (`test`.`t1i`.`a1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0'))
+Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) where ((`test`.`t1i`.`a1` = `test`.`t2i`.`b1`) and (`test`.`t1i`.`a2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b1` > '0'))
 select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
 a1	a2
 1 - 01	2 - 01
@@ -132,7 +132,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	#	#	#	1	100.00	#
 2	MATERIALIZED	t2i	range	it2i1,it2i3	#	#	#	3	100.00	#
 Warnings:
-Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where ((`<subquery2>`.`max(b2)` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`))
+Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where ((`<subquery2>`.`b1` = `test`.`t1i`.`a1`) and (`<subquery2>`.`max(b2)` = `test`.`t1i`.`a2`))
 select * from t1i where (a1, a2) in (select b1, max(b2) from t2i where b1 > '0' group by b1);
 a1	a2
 1 - 01	2 - 01
@@ -144,7 +144,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	#	#	#	1	100.00	#
 2	MATERIALIZED	t2i	range	it2i1,it2i3	#	#	#	3	100.00	#
 Warnings:
-Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where ((`<subquery2>`.`min(b2)` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`))
+Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where ((`<subquery2>`.`b1` = `test`.`t1i`.`a1`) and (`<subquery2>`.`min(b2)` = `test`.`t1i`.`a2`))
 select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
 a1	a2
 1 - 01	2 - 01
@@ -156,7 +156,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	test.t1.a1,test.t1.a2	1	100.00	
 2	MATERIALIZED	t2i	range	NULL	it2i3	9	NULL	3	100.00	Using index for group-by
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`max(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`b1` = `test`.`t1`.`a1`) and (`<subquery2>`.`max(b2)` = `test`.`t1`.`a2`))
 select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
 a1	a2
 1 - 01	2 - 01
@@ -188,7 +188,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	test.t1.a1,test.t1.a2	1	100.00	
 2	MATERIALIZED	t2i	range	it2i1,it2i3	it2i3	18	NULL	3	100.00	Using where; Using index for group-by
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`b1` = `test`.`t1`.`a1`) and (`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`))
 select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
 a1	a2
 1 - 01	2 - 01
@@ -236,7 +236,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	test.t1.a1,test.t1.a2	1	100.00	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from  <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2`) join `test`.`t1` where ((`<subquery2>`.`b2` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from  <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2`) join `test`.`t1` where ((`<subquery2>`.`b1` = `test`.`t1`.`a1`) and (`<subquery2>`.`b2` = `test`.`t1`.`a2`))
 select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
 a1	a2
 1 - 01	2 - 01
@@ -248,7 +248,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	test.t1i.a1,test.t1i.a2	1	100.00	
 2	MATERIALIZED	t2i	index	NULL	it2i3	18	NULL	5	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2`) join `test`.`t1i` where ((`<subquery2>`.`b2` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`))
+Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from  <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2`) join `test`.`t1i` where ((`<subquery2>`.`b1` = `test`.`t1i`.`a1`) and (`<subquery2>`.`b2` = `test`.`t1i`.`a2`))
 select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
 a1	a2
 1 - 01	2 - 01
@@ -305,7 +305,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	MATERIALIZED	t2i	index	it2i1,it2i2,it2i3	it2i3	18	NULL	5	80.00	Using where; Using index; Using join buffer (flat, BNL join)
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2`.`b1` > '0') and (`test`.`t3`.`c2` > '0'))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2`.`b1` > '0') and (`test`.`t3`.`c2` > '0'))
 select * from t1
 where (a1, a2) in (select b1, b2 from t2 where b1 >  '0') and
 (a1, a2) in (select c1, c2 from t3
@@ -324,7 +324,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t3i	ref	it3i1,it3i2,it3i3	#	#	#	1	100.00	#
 1	PRIMARY	t2i	ref	it2i1,it2i2,it2i3	#	#	#	2	100.00	#
 Warnings:
-Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t1i`.`a2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b2` = `test`.`t2i`.`b2`) and (`test`.`t1i`.`a1` = `test`.`t2i`.`b1`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0'))
+Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t1i`.`a1` = `test`.`t2i`.`b1`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` = `test`.`t2i`.`b1`) and (`test`.`t1i`.`a2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0'))
 select * from t1i
 where (a1, a2) in (select b1, b2 from t2i where b1 >  '0') and
 (a1, a2) in (select c1, c2 from t3i
@@ -349,7 +349,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 4	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3`.`c2` > '0'))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3`.`c2` > '0'))
 select * from t1
 where (a1, a2) in (select b1, b2 from t2
 where b2 in (select c2 from t3 where c2 LIKE '%02') or
@@ -375,7 +375,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	DEPENDENT SUBQUERY	t3a	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2i`.`b2` = `test`.`t3c`.`c2`) and (`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b1` = `test`.`t3c`.`c1`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3c`.`c2` > '0'))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2i`.`b1` = `test`.`t3c`.`c1`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b2` = `test`.`t3c`.`c2`) and (`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3c`.`c2` > '0'))
 select * from t1
 where (a1, a2) in (select b1, b2 from t2
 where b2 in (select c2 from t3 t3a where c1 = a1) or
@@ -413,7 +413,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 7	UNION	t2i	ref	it2i1,it2i2,it2i3	#	#	#	2	100.00	#
 NULL	UNION RESULT	<union1,7>	ALL	NULL	#	#	#	NULL	NULL	#
 Warnings:
-Note	1003	(select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3`.`c2` > '0'))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t1i`.`a2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b2` = `test`.`t2i`.`b2`) and (`test`.`t1i`.`a1` = `test`.`t2i`.`b1`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0')))
+Note	1003	(select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3`.`c2` > '0'))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t1i`.`a1` = `test`.`t2i`.`b1`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` = `test`.`t2i`.`b1`) and (`test`.`t1i`.`a2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b2` = `test`.`t2i`.`b2`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0')))
 (select * from t1
 where (a1, a2) in (select b1, b2 from t2
 where b2 in (select c2 from t3 where c2 LIKE '%02') or
@@ -443,7 +443,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and (`test`.`t3`.`c2` > '0'))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and (`test`.`t3`.`c2` > '0'))
 select * from t1
 where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and
 (a1, a2) in (select c1, c2 from t3
@@ -467,7 +467,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t1` semi join (`test`.`t2i` join `test`.`t3`) join `test`.`t3` where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t3`.`c1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and (`test`.`t3`.`c2` > '0'))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t1` semi join (`test`.`t2i` join `test`.`t3`) join `test`.`t3` where ((`test`.`t3`.`c1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and (`test`.`t3`.`c2` > '0'))
 select * from t1, t3
 where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and
 (c1, c2) in (select c1, c2 from t3
@@ -513,7 +513,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 Warnings:
 Note	1276	Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1
 Note	1276	Field or reference 'test.t1.a2' of SELECT #6 was resolved in SELECT #1
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2i`.`b2` = `test`.`t1`.`a2`) and (`test`.`t3c`.`c2` = `test`.`t1`.`a2`) and (`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b1` = `test`.`t1`.`a1`) and (`test`.`t3c`.`c1` = `test`.`t1`.`a1`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2i`.`b1` = `test`.`t1`.`a1`) and (`test`.`t3c`.`c1` = `test`.`t1`.`a1`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b2` = `test`.`t1`.`a2`) and (`test`.`t3c`.`c2` = `test`.`t1`.`a2`) and (`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))))
 explain extended
 select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
@@ -633,7 +633,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1_16	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	PRIMARY	t2_16	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` semi join (`test`.`t2_16`) where ((`test`.`t2_16`.`b2` = `test`.`t1_16`.`a2`) and (`test`.`t2_16`.`b1` = `test`.`t1_16`.`a1`) and (`test`.`t1_16`.`a1` > '0'))
+Note	1003	select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` semi join (`test`.`t2_16`) where ((`test`.`t2_16`.`b1` = `test`.`t1_16`.`a1`) and (`test`.`t2_16`.`b2` = `test`.`t1_16`.`a2`) and (`test`.`t1_16`.`a1` > '0'))
 select left(a1,7), left(a2,7)
 from t1_16
 where (a1,a2) in (select b1, b2 from t2_16 where b1 > '0');
@@ -700,7 +700,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (flat, BNL join)
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; End temporary; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t3` join `test`.`t2_16` join `test`.`t2` join `test`.`t1_16`) where ((`test`.`t2_16`.`b2` = `test`.`t1_16`.`a2`) and (`test`.`t2_16`.`b1` = `test`.`t1_16`.`a1`) and (`test`.`t2`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2`.`b2` = substr(`test`.`t1_16`.`a2`,1,6)) and (`test`.`t3`.`c2` > '0') and (concat(`test`.`t1`.`a1`,'x') = left(`test`.`t1_16`.`a1`,8)))
+Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t3` join `test`.`t2_16` join `test`.`t2` join `test`.`t1_16`) where ((`test`.`t2`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2_16`.`b1` = `test`.`t1_16`.`a1`) and (`test`.`t2_16`.`b2` = `test`.`t1_16`.`a2`) and (`test`.`t2`.`b2` = substr(`test`.`t1_16`.`a2`,1,6)) and (`test`.`t3`.`c2` > '0') and (concat(`test`.`t1`.`a1`,'x') = left(`test`.`t1_16`.`a1`,8)))
 drop table t1_16, t2_16, t3_16;
 set @blob_len = 512;
 set @suffix_len = @blob_len - @prefix_len;
@@ -748,7 +748,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1_512	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	PRIMARY	t2_512	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` semi join (`test`.`t2_512`) where ((`test`.`t2_512`.`b2` = `test`.`t1_512`.`a2`) and (`test`.`t2_512`.`b1` = `test`.`t1_512`.`a1`) and (`test`.`t1_512`.`a1` > '0'))
+Note	1003	select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` semi join (`test`.`t2_512`) where ((`test`.`t2_512`.`b1` = `test`.`t1_512`.`a1`) and (`test`.`t2_512`.`b2` = `test`.`t1_512`.`a2`) and (`test`.`t1_512`.`a1` > '0'))
 select left(a1,7), left(a2,7)
 from t1_512
 where (a1,a2) in (select b1, b2 from t2_512 where b1 > '0');
@@ -844,7 +844,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1_1024	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	PRIMARY	t2_1024	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` semi join (`test`.`t2_1024`) where ((`test`.`t2_1024`.`b2` = `test`.`t1_1024`.`a2`) and (`test`.`t2_1024`.`b1` = `test`.`t1_1024`.`a1`) and (`test`.`t1_1024`.`a1` > '0'))
+Note	1003	select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` semi join (`test`.`t2_1024`) where ((`test`.`t2_1024`.`b1` = `test`.`t1_1024`.`a1`) and (`test`.`t2_1024`.`b2` = `test`.`t1_1024`.`a2`) and (`test`.`t1_1024`.`a1` > '0'))
 select left(a1,7), left(a2,7)
 from t1_1024
 where (a1,a2) in (select b1, b2 from t2_1024 where b1 > '0');
@@ -939,7 +939,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1_1025	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	PRIMARY	t2_1025	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` semi join (`test`.`t2_1025`) where ((`test`.`t2_1025`.`b2` = `test`.`t1_1025`.`a2`) and (`test`.`t2_1025`.`b1` = `test`.`t1_1025`.`a1`) and (`test`.`t1_1025`.`a1` > '0'))
+Note	1003	select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` semi join (`test`.`t2_1025`) where ((`test`.`t2_1025`.`b1` = `test`.`t1_1025`.`a1`) and (`test`.`t2_1025`.`b2` = `test`.`t1_1025`.`a2`) and (`test`.`t1_1025`.`a1` > '0'))
 select left(a1,7), left(a2,7)
 from t1_1025
 where (a1,a2) in (select b1, b2 from t2_1025 where b1 > '0');
@@ -1027,7 +1027,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1bb	ALL	NULL	NULL	NULL	NULL	3	100.00	
 1	PRIMARY	t2bb	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select conv(`test`.`t1bb`.`a1`,10,2) AS `bin(a1)`,`test`.`t1bb`.`a2` AS `a2` from `test`.`t1bb` semi join (`test`.`t2bb`) where ((`test`.`t2bb`.`b2` = `test`.`t1bb`.`a2`) and (`test`.`t2bb`.`b1` = `test`.`t1bb`.`a1`))
+Note	1003	select conv(`test`.`t1bb`.`a1`,10,2) AS `bin(a1)`,`test`.`t1bb`.`a2` AS `a2` from `test`.`t1bb` semi join (`test`.`t2bb`) where ((`test`.`t2bb`.`b1` = `test`.`t1bb`.`a1`) and (`test`.`t2bb`.`b2` = `test`.`t1bb`.`a2`))
 select bin(a1), a2
 from t1bb
 where (a1, a2) in (select b1, b2 from t2bb);
@@ -1934,7 +1934,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (select max(`test`.`t2`.`c`) from `test`.`t2`) join `test`.`t1` where ((`test`.`t1`.`a` = `<subquery2>`.`MAX(c)`) and (`test`.`t1`.`b` = 7) and (<cache>(isnull(`<subquery2>`.`MAX(c)`)) or (`<subquery2>`.`MAX(c)` = 7)))
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (select max(`test`.`t2`.`c`) from `test`.`t2`) join `test`.`t1` where ((`test`.`t1`.`b` = 7) and (`test`.`t1`.`a` = `<subquery2>`.`MAX(c)`) and (<cache>(isnull(`<subquery2>`.`MAX(c)`)) or (`<subquery2>`.`MAX(c)` = 7)))
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
 a	b
diff --git a/mysql-test/r/sum_distinct-big.result b/mysql-test/r/sum_distinct-big.result
index d4933b31f80..2d350826ac8 100644
--- a/mysql-test/r/sum_distinct-big.result
+++ b/mysql-test/r/sum_distinct-big.result
@@ -1,4 +1,8 @@
 DROP TABLE IF EXISTS t1, t2;
+set @save_tmp_table_size=@@tmp_table_size;
+set @save_max_heap_table_size=@@max_heap_table_size;
+set @save_storage_engine=@@storage_engine;
+set storage_engine=MYISAM;
 CREATE TABLE t1 (id INTEGER);
 CREATE TABLE t2 (id INTEGER);
 INSERT INTO t1 (id) VALUES (1), (1), (1),(1);
@@ -120,3 +124,57 @@ sm
 536887296
 DROP TABLE t1;
 DROP TABLE t2;
+SET @@tmp_table_size=@save_tmp_table_size;
+SET @@max_heap_table_size=@save_max_heap_table_size;
+# 
+# Bug mdev-4311: COUNT(DISTINCT...) requiring a file for Unique 
+# (bug #68749)
+# 
+set @save_storage_engine=@@storage_engine;
+set storage_engine=INNODB;
+CREATE TABLE t1 (id INTEGER) ENGINE=InnoDB;
+CREATE TABLE t2 (id INTEGER) ENGINE=InnoDB;
+INSERT INTO t1 (id) VALUES (1), (1), (1),(1);
+INSERT INTO t1 (id) SELECT id FROM t1;
+INSERT INTO t1 (id) SELECT id FROM t1;
+INSERT INTO t1 (id) SELECT id FROM t1;
+INSERT INTO t1 (id) SELECT id FROM t1;
+INSERT INTO t1 (id) SELECT id FROM t1;
+INSERT INTO t1 SELECT id+1 FROM t1;
+INSERT INTO t1 SELECT id+2 FROM t1;
+INSERT INTO t1 SELECT id+4 FROM t1;
+INSERT INTO t1 SELECT id+8 FROM t1;
+INSERT INTO t1 SELECT id+16 FROM t1;
+INSERT INTO t1 SELECT id+32 FROM t1;
+INSERT INTO t1 SELECT id+64 FROM t1;
+INSERT INTO t1 SELECT id+128 FROM t1;
+INSERT INTO t1 SELECT id+256 FROM t1;
+INSERT INTO t1 SELECT id+512 FROM t1;
+INSERT INTO t1 SELECT id+1024 FROM t1;
+INSERT INTO t1 SELECT id+2048 FROM t1;
+INSERT INTO t1 SELECT id+4096 FROM t1;
+INSERT INTO t1 SELECT id+8192 FROM t1;
+INSERT INTO t2 SELECT id FROM t1 ORDER BY id*rand();
+INSERT INTO t2 VALUE(NULL);
+# With default tmp_table_size / max_heap_table_size
+SELECT SQL_NO_CACHE count(DISTINCT id) sm FROM t2;
+sm
+16384
+set @@tmp_table_size=1024*256;
+# With reduced tmp_table_size
+SELECT SQL_NO_CACHE count(DISTINCT id) sm FROM t2;
+sm
+16384
+set @@tmp_table_size=@save_tmp_table_size;
+SET @@max_heap_table_size=1024*256;
+# With reduced max_heap_table_size
+SELECT SQL_NO_CACHE count(DISTINCT id) sm FROM t2;
+sm
+16384
+SET @@max_heap_table_size=@save_max_heap_table_size;
+# Back to default tmp_table_size / max_heap_table_size
+SELECT SQL_NO_CACHE count(DISTINCT id) sm FROM t2;
+sm
+16384
+DROP TABLE t1,t2;
+set storage_engine=@save_storage_engine;
diff --git a/mysql-test/r/temporal_scale_4283.result b/mysql-test/r/temporal_scale_4283.result
new file mode 100644
index 00000000000..685a6192a97
--- /dev/null
+++ b/mysql-test/r/temporal_scale_4283.result
@@ -0,0 +1,12 @@
+create table t1 (a int);
+insert into t1 values (4),(8);
+select distinct 100 mod timestampadd( week, a, '2002-05-20' ) from t1;
+100 mod timestampadd( week, a, '2002-05-20' )
+100
+drop table t1;
+create table t1 (i int);
+insert into t1 values (2),(4);
+select distinct convert_tz( '2001-03-21', 'utc', 'met' ) mod i from t1;
+convert_tz( '2001-03-21', 'utc', 'met' ) mod i
+0
+drop table t1;
diff --git a/mysql-test/r/truncate_badse.result b/mysql-test/r/truncate_badse.result
new file mode 100644
index 00000000000..16f44f180ed
--- /dev/null
+++ b/mysql-test/r/truncate_badse.result
@@ -0,0 +1,13 @@
+install plugin example soname 'ha_example';
+create table t1 (a int) engine=example;
+select 1;
+1
+1
+uninstall plugin example;
+flush tables;
+select count(*) from information_schema.plugins where plugin_name='example';
+count(*)
+0
+truncate table t1;
+ERROR 42000: Unknown storage engine 'EXAMPLE'
+drop table t1;
diff --git a/mysql-test/r/type_date.result b/mysql-test/r/type_date.result
index 8a85cd53b2a..2d4a290751f 100644
--- a/mysql-test/r/type_date.result
+++ b/mysql-test/r/type_date.result
@@ -136,7 +136,7 @@ select @d:=1311;
 1311
 select year(@d), month(@d), day(@d), cast(@d as date);
 year(@d)	month(@d)	day(@d)	cast(@d as date)
-NULL	NULL	NULL	NULL
+0	0	0	0000-00-00
 Warnings:
 Warning	1292	Incorrect datetime value: '1311'
 Warning	1292	Incorrect datetime value: '1311'
diff --git a/mysql-test/r/type_datetime.result b/mysql-test/r/type_datetime.result
index 811fbacaf59..05cdcf7e256 100644
--- a/mysql-test/r/type_datetime.result
+++ b/mysql-test/r/type_datetime.result
@@ -573,7 +573,7 @@ CAST('NULL' AS DATE) < CAST('2008-01-01' AS DATE) n7,
 CAST('2008-01-01' AS DATE) < CAST('NULL' AS DATE) n8,
 CAST('NULL' AS DATE) < CAST('NULL' AS DATE) n9;
 n1	n2	n3	n4	n5	n6	n7	n8	n9
-0	0	1	NULL	NULL	NULL	NULL	NULL	NULL
+0	0	1	1	1	0	1	0	0
 Warnings:
 Warning	1292	Incorrect datetime value: 'NULL'
 Warning	1292	Incorrect datetime value: 'NULL'
@@ -585,6 +585,8 @@ Warning	1292	Incorrect datetime value: 'NULL'
 Warning	1292	Incorrect datetime value: 'NULL'
 Warning	1292	Incorrect datetime value: 'NULL'
 Warning	1292	Incorrect datetime value: 'NULL'
+Warning	1292	Incorrect datetime value: 'NULL'
+Warning	1292	Incorrect datetime value: 'NULL'
 End of 5.0 tests
 set @org_mode=@@sql_mode;
 create table t1 (da date default '1962-03-03 23:33:34', dt datetime default '1962-03-03');
@@ -651,6 +653,19 @@ SELECT * FROM t1;
 dt1
 DROP TABLE t1;
 End of 5.1 tests
+create table t1 (d date, t time) engine=myisam;
+insert into t1 values ('2000-12-03','22:55:23'),('2008-05-03','10:19:31');
+select case when d = '2012-12-12' then d else t end as cond, group_concat( d ) from t1 group by cond;
+cond	group_concat( d )
+0000-00-00 00:00:00	2000-12-03
+0000-00-00 00:00:00	2008-05-03
+Warnings:
+Warning	1292	Incorrect datetime value: '22:55:23'
+Warning	1292	Incorrect datetime value: '10:19:31'
+Warning	1292	Incorrect datetime value: '22:55:23'
+Warning	1292	Incorrect datetime value: '10:19:31'
+drop table t1;
+End of 5.3 tests
 #
 # Start of 5.5 tests
 #
diff --git a/mysql-test/r/type_enum.result b/mysql-test/r/type_enum.result
index 813f912c5af..d373d14c089 100644
--- a/mysql-test/r/type_enum.result
+++ b/mysql-test/r/type_enum.result
@@ -1854,3 +1854,18 @@ a
 
 DROP TABLE t1;
 End of 5.1 tests
+#
+# MDEV-4241: Assertion failure: scale >= 0 && precision > 0 &&
+# scale <= precision in decimal_bin_size
+#
+CREATE TABLE t1 (
+f1 enum('1','2','3','4','5')
+) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+SELECT AVG(f1) FROM t1;
+Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
+def					AVG(f1)	246	7	6	Y	32896	4	63
+AVG(f1)
+1.5000
+drop table t1;
+End of 5.3 tests
diff --git a/mysql-test/r/upgrade.result b/mysql-test/r/upgrade.result
index ec63cc0d98c..d565bb2dbd6 100644
--- a/mysql-test/r/upgrade.result
+++ b/mysql-test/r/upgrade.result
@@ -33,26 +33,28 @@ show create database `#mysql50#mysqltest-1`;
 ERROR 42000: Unknown database '#mysql50#mysqltest-1'
 show tables in `mysqltest1`;
 Tables_in_mysqltest1
-t1
 t-1
+t1
 show tables in `mysqltest-1`;
 Tables_in_mysqltest-1
-t1
 t-1
+t1
 drop database `mysqltest1`;
 drop database `mysqltest-1`;
-drop table if exists `txu@0023p@0023p1`;
-drop table if exists `txu#p#p1`;
 create table `txu#p#p1` (s1 int);
 insert into `txu#p#p1` values (1);
 select * from `txu@0023p@0023p1`;
 ERROR 42S02: Table 'test.txu@0023p@0023p1' doesn't exist
 create table `txu@0023p@0023p1` (s1 int);
-ERROR 42S01: Table '#mysql50#txu@0023p@0023p1' already exists
+show tables;
+Tables_in_test
+txu#p#p1
+txu@0023p@0023p1
 select * from `txu#p#p1`;
 s1
 1
 drop table `txu#p#p1`;
+drop table `txu@0023p@0023p1`;
 #
 # Bug#37631 Incorrect key file for table after upgrading from 5.0 to 5.1
 #
diff --git a/mysql-test/r/user_var-binlog.result b/mysql-test/r/user_var-binlog.result
index 27a0d7f0a1b..f428d460d39 100644
--- a/mysql-test/r/user_var-binlog.result
+++ b/mysql-test/r/user_var-binlog.result
@@ -18,6 +18,7 @@ master-bin.000001	#	User var	#	#	@`var2`=_binary 0x61 COLLATE binary
 master-bin.000001	#	Query	#	#	use `test`; insert into t1 values (@var1),(@var2)
 master-bin.000001	#	Query	#	#	COMMIT
 flush logs;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
@@ -56,4 +57,5 @@ DELIMITER ;
 # End of log file
 ROLLBACK /* added by mysqlbinlog */;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
 drop table t1;
diff --git a/mysql-test/r/user_var.result b/mysql-test/r/user_var.result
index 6cbbe934bde..78ed5bb65d5 100644
--- a/mysql-test/r/user_var.result
+++ b/mysql-test/r/user_var.result
@@ -461,8 +461,42 @@ GROUP BY @b:=(SELECT COUNT(*) > t2.a);
 @a:=MIN(t1.a)
 1
 DROP TABLE t1;
+SET @bug12408412=1;
+SELECT GROUP_CONCAT(@bug12408412 ORDER BY 1) INTO @bug12408412;
 End of 5.1 tests
-DROP TABLE IF EXISTS t1;
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0);
+SELECT DISTINCT POW(COUNT(*), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a))
+AS b FROM t1 GROUP BY a;
+b
+1
+SELECT @a;
+@a
+1
+DROP TABLE t1;
+CREATE TABLE t1(f1 INT, f2 INT);
+INSERT INTO t1 VALUES (1,2),(2,3),(3,1);
+CREATE TABLE t2(a INT);
+INSERT INTO t2 VALUES (1);
+SET @var=NULL;
+SELECT @var:=(SELECT f2 FROM t2 WHERE @var) FROM t1 GROUP BY f1 ORDER BY f2 DESC
+LIMIT 1;
+@var:=(SELECT f2 FROM t2 WHERE @var)
+NULL
+SELECT @var;
+@var
+NULL
+DROP TABLE t1, t2;
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES (0),(1),(3);
+SELECT DISTINCT POW(COUNT(distinct a), @a:=(SELECT 1 FROM t1 LEFT JOIN t1 AS t2 ON @a limit 1)) AS b FROM t1 GROUP BY a;
+b
+1
+SELECT @a;
+@a
+1
+DROP TABLE t1;
+End of 5.2 tests
 CREATE TABLE t1(f1 INT AUTO_INCREMENT, PRIMARY KEY(f1));
 INSERT INTO t1 SET f1 = NULL ;
 SET @aux = NULL ;
@@ -530,9 +564,9 @@ SELECT @a;
 @a
 1
 DROP TABLE t1;
+End of 5.5 tests
 #
 # Check that used memory extends if we set a variable
 #
 set @var= repeat('a',20000);
 1
-End of 5.5 tests
diff --git a/mysql-test/r/variables.result b/mysql-test/r/variables.result
index 29986344f88..bba63e73c56 100644
--- a/mysql-test/r/variables.result
+++ b/mysql-test/r/variables.result
@@ -1483,16 +1483,6 @@ SELECT @@GLOBAL.server_id;
 @@GLOBAL.server_id
 0
 SET GLOBAL server_id = @old_server_id;
-SELECT @@GLOBAL.INIT_CONNECT, @@GLOBAL.INIT_CONNECT IS NULL;
-@@GLOBAL.INIT_CONNECT	@@GLOBAL.INIT_CONNECT IS NULL
-	1
-CREATE TABLE t1 (a INT);
-INSERT INTO t1 VALUES ();
-SET @bug42778= @@sql_safe_updates;
-SET @@sql_safe_updates= 0;
-DELETE FROM t1 ORDER BY (@@GLOBAL.INIT_CONNECT) ASC LIMIT 10;
-SET @@sql_safe_updates= @bug42778;
-DROP TABLE t1;
 #
 # BUG#10206 - InnoDB: Transaction requiring Max_BinLog_Cache_size > 4GB always rollsback
 #
diff --git a/mysql-test/r/view.result b/mysql-test/r/view.result
index 1e5e91b272c..ef4bcc33c48 100644
--- a/mysql-test/r/view.result
+++ b/mysql-test/r/view.result
@@ -1423,7 +1423,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t3`.`a` AS `a`,`test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `b` from `test`.`t3` left join (`test`.`t1` left join `test`.`t2` on(((`test`.`t1`.`a` = `test`.`t3`.`a`) and (`test`.`t2`.`a` = `test`.`t3`.`a`)))) on((`test`.`t1`.`a` = `test`.`t3`.`a`)) where 1
+Note	1003	select `test`.`t3`.`a` AS `a`,`test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `b` from `test`.`t3` left join (`test`.`t1` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`t3`.`a`))) on((`test`.`t1`.`a` = `test`.`t3`.`a`)) where 1
 create view v1 (a) as select a from t1;
 create view v2 (a) as select a from t2;
 create view v4 (a,b) as select v1.a as a, v2.a as b from v1 left join v2 on (v1.a=v2.a);
@@ -1438,7 +1438,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
-Note	1003	select `test`.`t3`.`a` AS `a`,`test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `b` from `test`.`t3` left join (`test`.`t1` left join (`test`.`t2`) on(((`test`.`t1`.`a` = `test`.`t3`.`a`) and (`test`.`t2`.`a` = `test`.`t3`.`a`)))) on((`test`.`t1`.`a` = `test`.`t3`.`a`)) where 1
+Note	1003	select `test`.`t3`.`a` AS `a`,`test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `b` from `test`.`t3` left join (`test`.`t1` left join (`test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`))) on((`test`.`t1`.`a` = `test`.`t3`.`a`)) where 1
 prepare stmt1 from "select * from t3 left join v4 on (t3.a = v4.a);";
 execute stmt1;
 a	a	b
diff --git a/mysql-test/r/windows.result b/mysql-test/r/windows.result
index dc624a07f4f..d0cdd858d4a 100644
--- a/mysql-test/r/windows.result
+++ b/mysql-test/r/windows.result
@@ -16,7 +16,7 @@ CREATE TABLE t1 (a int, b int);
 INSERT INTO t1 VALUES (1,1);
 EXPLAIN SELECT * FROM t1 WHERE b =  (SELECT max(2));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 DROP TABLE t1;
 CREATE DATABASE `TESTDB`;