set @subselect_innodb_tmp=@@optimizer_switch;
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
drop table if exists t1,t2,t3;
CREATE TABLE t1
(
FOLDERID VARCHAR(32)BINARY NOT NULL
, FOLDERNAME VARCHAR(255)BINARY NOT NULL
, CREATOR VARCHAR(255)BINARY
, CREATED TIMESTAMP NOT NULL
, DESCRIPTION VARCHAR(255)BINARY
, FOLDERTYPE INTEGER NOT NULL
, MODIFIED TIMESTAMP
, MODIFIER VARCHAR(255)BINARY
, FOLDERSIZE INTEGER NOT NULL
, PARENTID VARCHAR(32)BINARY
, REPID VARCHAR(32)BINARY
, ORIGINATOR INTEGER
, PRIMARY KEY ( FOLDERID )
) ENGINE=InnoDB;
CREATE INDEX FFOLDERID_IDX ON t1 (FOLDERID);
CREATE INDEX CMFLDRPARNT_IDX ON t1 (PARENTID);
INSERT INTO t1 VALUES("0c9aab05b15048c59bc35c8461507deb", "System", "System", "2003-06-05 16:30:00", "The system content repository folder.", "3", "2003-06-05 16:30:00", "System", "0", NULL, "9c9aab05b15048c59bc35c8461507deb", "1");
INSERT INTO t1 VALUES("2f6161e879db43c1a5b82c21ddc49089", "Default", "System", "2003-06-09 10:52:02", "The default content repository folder.", "3", "2003-06-05 16:30:00", "System", "0", NULL, "03eea05112b845949f3fd03278b5fe43", "1");
INSERT INTO t1 VALUES("c373e9f5ad0791724315444553544200", "AddDocumentTest", "admin", "2003-06-09 10:51:25", "Movie Reviews", "0", "2003-06-09 10:51:25", "admin", "0", "2f6161e879db43c1a5b82c21ddc49089", "03eea05112b845949f3fd03278b5fe43", NULL);
SELECT 'c373e9f5ad0791a0dab5444553544200' IN(SELECT t1.FOLDERID FROM t1 WHERE t1.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t1.FOLDERNAME = 'Level1');
'c373e9f5ad0791a0dab5444553544200' IN(SELECT t1.FOLDERID FROM t1 WHERE t1.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t1.FOLDERNAME = 'Level1')
0
drop table t1;
create table t1 (a int) engine=innodb;
create table t2 (a int) engine=innodb;
create table t3 (a int) engine=innodb;
insert into t1 values (1),(2),(3),(4);
insert into t2 values (10),(20),(30),(40);
insert into t3 values (1),(2),(10),(50);
select a from t3 where t3.a in (select a from t1 where a <= 3 union select * from t2 where a <= 30);
a
1
2
10
drop table t1,t2,t3;
CREATE TABLE t1 (
processor_id INTEGER NOT NULL,
PRIMARY KEY (processor_id)
) ENGINE=InnoDB;
CREATE TABLE t3 (
yod_id BIGINT UNSIGNED AUTO_INCREMENT NOT NULL,
login_processor INTEGER UNSIGNED ,
PRIMARY KEY (yod_id)
) ENGINE=InnoDB;
CREATE TABLE t2 (
processor_id INTEGER NOT NULL,
yod_id BIGINT UNSIGNED NOT NULL,
PRIMARY KEY (processor_id, yod_id),
INDEX (processor_id),
INDEX (yod_id),
FOREIGN KEY (processor_id) REFERENCES t1(processor_id),
FOREIGN KEY (yod_id) REFERENCES t3(yod_id) 
) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2),(3);
INSERT INTO t3 VALUES (1,1),(2,2),(3,3);
INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
SELECT distinct p1.processor_id, (SELECT y.yod_id FROM t1 p2, t2 y WHERE p2.processor_id = p1.processor_id and p2.processor_id = y.processor_id) FROM t1 p1;
processor_id	(SELECT y.yod_id FROM t1 p2, t2 y WHERE p2.processor_id = p1.processor_id and p2.processor_id = y.processor_id)
1	1
2	2
3	3
drop table t2,t1,t3;
CREATE TABLE t1 (
id int(11) NOT NULL default '0',
b int(11) default NULL,
c char(3) default NULL,
PRIMARY KEY  (id),
KEY t2i1 (b)
) ENGINE=innodb DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (0,0,'GPL'),(1,0,'GPL'),(2,1,'GPL'),(3,2,'GPL');
CREATE TABLE t2 (
id int(11) NOT NULL default '0',
b int(11) default NULL,
c char(3) default NULL,
PRIMARY KEY  (id),
KEY t2i (b)
) ENGINE=innodb DEFAULT CHARSET=latin1;
INSERT INTO t2 VALUES (0,0,'GPL'),(1,0,'GPL'),(2,1,'GPL'),(3,2,'GPL');
select (select max(id) from t2 where b=1 group by b) as x,b from t1 where b=1;
x	b
2	1
drop table t1,t2;
create table t1 (id int not null, value char(255), primary key(id)) engine=innodb;
create table t2 (id int not null, value char(255)) engine=innodb;
insert into t1 values (1,'a'),(2,'b');
insert into t2 values (1,'z'),(2,'x');
select t2.id,t2.value,(select t1.value from t1 where t1.id=t2.id) from t2;
id	value	(select t1.value from t1 where t1.id=t2.id)
1	z	a
2	x	b
select t2.id,t2.value,(select t1.value from t1 where t1.id=t2.id) from t2;
id	value	(select t1.value from t1 where t1.id=t2.id)
1	z	a
2	x	b
drop table t1,t2;
create table t1 (a int, b int) engine=innodb;
insert into t1 values (1,2), (1,3), (2,3), (2,4), (2,5), (3,4), (4,5), (4,100);
create table t2 (a int) engine=innodb;
insert into t2 values (1),(2),(3),(4);
select a, sum(b) as b from t1 group by a having b > (select max(a) from t2);
a	b
1	5
2	12
4	105
drop table t1, t2;
CREATE TABLE `t1` ( `unit` varchar(50) NOT NULL default '', `ingredient` varchar(50) NOT NULL default '') ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `t2` ( `ingredient` varchar(50) NOT NULL default '', `unit` varchar(50) NOT NULL default '', PRIMARY KEY (ingredient, unit)) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO `t1` VALUES ('xx','yy');
INSERT INTO `t2` VALUES ('yy','xx');
SELECT R.unit, R.ingredient FROM t1 R WHERE R.ingredient IN (SELECT N.ingredient FROM t2 N WHERE N.unit = R.unit);
unit	ingredient
xx	yy
drop table t1, t2;
CREATE TABLE t1 (
id INT NOT NULL auto_increment,
date1 DATE, coworkerid INT,
description VARCHAR(255),
sum_used DOUBLE,
sum_remaining DOUBLE,
comments VARCHAR(255),
PRIMARY KEY(id)
) engine=innodb;
insert into t1 values (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1998-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1998-01-01', 1,'test', 22, 33, 'comment'), (NULL, '2004-01-01', 1,'test', 22, 33, 'comment'), (NULL, '2004-01-01', 1,'test', 22, 33, 'comment');
SELECT DISTINCT
(SELECT sum(sum_used) FROM t1 WHERE sum_used > 0 AND year(date1) <= '2004') as somallontvangsten,
(SELECT sum(sum_used) FROM t1 WHERE sum_used < 0 AND year(date1) <= '2004') as somalluitgaven
FROM t1;
somallontvangsten	somalluitgaven
154	NULL
select * from t1;
id	date1	coworkerid	description	sum_used	sum_remaining	comments
1	1999-01-01	1	test	22	33	comment
2	1999-01-01	1	test	22	33	comment
3	1999-01-01	1	test	22	33	comment
4	1998-01-01	1	test	22	33	comment
5	1998-01-01	1	test	22	33	comment
6	2004-01-01	1	test	22	33	comment
7	2004-01-01	1	test	22	33	comment
drop table t1;
CREATE TABLE `t1` ( `a` char(3) NOT NULL default '', `b` char(3) NOT NULL default '', `c` char(3) NOT NULL default '', PRIMARY KEY  (`a`,`b`,`c`)) ENGINE=InnoDB;
CREATE TABLE t2 LIKE t1;
INSERT INTO t1 VALUES (1,1,1);
INSERT INTO t2 VALUES (1,1,1);
PREPARE my_stmt FROM "SELECT t1.b, count(*) FROM t1 group by t1.b having
count(*) > ALL (SELECT COUNT(*) FROM t2 WHERE t2.a=1 GROUP By t2.b)";
EXECUTE my_stmt;
b	count(*)
EXECUTE my_stmt;
b	count(*)
deallocate prepare my_stmt;
drop table t1,t2;
CREATE TABLE t1 (
school_name varchar(45) NOT NULL,
country varchar(45) NOT NULL,    
funds_requested float NOT NULL,
schooltype varchar(45) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
insert into t1 values ("the school", "USA", 1200, "Human");
select count(country) as countrycount, sum(funds_requested) as smcnt,
country, (select sum(funds_requested) from t1) as total_funds
from t1
group by country;
countrycount	smcnt	country	total_funds
1	1200	USA	1200
select count(country) as countrycount, sum(funds_requested) as smcnt,
country, (select sum(funds_requested) from t1) as total_funds
from t1
group by country;
countrycount	smcnt	country	total_funds
1	1200	USA	1200
drop table t1;
CREATE TABLE `t1` (
`t3_id` int NOT NULL,
`t1_id` int NOT NULL,
PRIMARY KEY  (`t1_id`)
);
CREATE TABLE `t2` (
`t2_id` int NOT NULL,
`t1_id` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY  (`t2_id`),
UNIQUE KEY `idx_t2_t1_b` (`t1_id`,`b`)
) ENGINE=InnoDB;
CREATE TABLE `t3` (
`t3_id` int NOT NULL
);
INSERT INTO `t3` VALUES (3);
select
(SELECT rs.t2_id
FROM t2 rs
WHERE rs.t1_id=
(SELECT lt.t1_id
FROM t1 lt
WHERE lt.t3_id=a.t3_id)
ORDER BY b DESC LIMIT 1)
from t3 AS a;
(SELECT rs.t2_id
FROM t2 rs
WHERE rs.t1_id=
(SELECT lt.t1_id
FROM t1 lt
WHERE lt.t3_id=a.t3_id)
ORDER BY b DESC LIMIT 1)
NULL
DROP PROCEDURE IF EXISTS p1;
create procedure p1()
begin
declare done int default 3;
repeat
select
(SELECT rs.t2_id
FROM t2 rs
WHERE rs.t1_id=
(SELECT lt.t1_id
FROM t1 lt
WHERE lt.t3_id=a.t3_id)
ORDER BY b DESC LIMIT 1) as x
from t3 AS a;
set done= done-1;
until done <= 0 end repeat;
end//
call p1();
x
NULL
x
NULL
x
NULL
call p1();
x
NULL
x
NULL
x
NULL
call p1();
x
NULL
x
NULL
x
NULL
drop procedure p1;
drop tables t1,t2,t3;
#
# Bug #58756
# Crash in heap_rrnd on query with HAVING ... IN (subquery) + LIMIT
#
CREATE TABLE t1 (
col_time_key time DEFAULT NULL,
col_datetime_key datetime DEFAULT NULL,
col_varchar_nokey varchar(1) DEFAULT NULL,
KEY col_time_key (col_time_key),
KEY col_datetime_key (col_datetime_key)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES ('17:53:30','2005-11-10 12:40:29','h');
INSERT INTO t1 VALUES ('11:35:49','2009-04-25 00:00:00','b');
INSERT INTO t1 VALUES (NULL,'2002-11-27 00:00:00','s');
INSERT INTO t1 VALUES ('06:01:40','2004-01-26 20:32:32','e');
INSERT INTO t1 VALUES ('05:45:11','2007-10-26 11:41:40','j');
INSERT INTO t1 VALUES ('00:00:00','2005-10-07 00:00:00','e');
INSERT INTO t1 VALUES ('00:00:00','2000-07-15 05:00:34','f');
INSERT INTO t1 VALUES ('06:11:01','2000-04-03 16:33:32','v');
INSERT INTO t1 VALUES ('13:02:46',NULL,'x');
INSERT INTO t1 VALUES ('21:44:25','2001-04-25 01:26:12','m');
INSERT INTO t1 VALUES ('22:43:58','2000-12-27 00:00:00','c');
CREATE TABLE t2 (
col_time_key time DEFAULT NULL,
col_datetime_key datetime DEFAULT NULL,
col_varchar_nokey varchar(1) DEFAULT NULL,
KEY col_time_key (col_time_key),
KEY col_datetime_key (col_datetime_key)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t2 VALUES ('11:28:45','2004-10-11 18:13:16','w');
SELECT col_time_key, col_datetime_key
FROM 
( SELECT * FROM t1 ) AS table1 
HAVING ( 'r' , 'e' ) IN 
( SELECT col_varchar_nokey , col_varchar_nokey FROM t2 )
ORDER BY col_datetime_key 
LIMIT 10;
col_time_key	col_datetime_key
DROP TABLE t1;
DROP TABLE t2;
# End of Bug #58756
#
# Bug#60085 crash in Item::save_in_field() with time data type
#
CREATE TABLE t1(a date, b int, unique(b), unique(a), key(b)) engine=innodb;
INSERT INTO t1 VALUES ('2011-05-13', 0);
SELECT * FROM t1 WHERE b < (SELECT CAST(a as date) FROM t1 GROUP BY a);
a	b
2011-05-13	0
DROP TABLE t1;
#
# Bug #11766300  59387: FAILING ASSERTION: CURSOR->POS_STATE == 1997660512 (BTR_PCUR_IS_POSITIONE
#
CREATE TABLE t1 (a INT) ENGINE=INNODB;
INSERT INTO t1 VALUES (0);
CREATE TABLE t2 (d BINARY(2), PRIMARY KEY (d(1)), UNIQUE KEY (d)) ENGINE=INNODB;
SELECT 1 FROM t1 WHERE NOT EXISTS
(SELECT 1 FROM t2 WHERE d = (SELECT d FROM t2 WHERE a >= 1) ORDER BY d);
1
1
EXPLAIN SELECT 1 FROM t1 WHERE NOT EXISTS
(SELECT 1 FROM t2 WHERE d = (SELECT d FROM t2 WHERE a >= 1) ORDER BY d);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	1	Using where
2	DEPENDENT SUBQUERY	t2	eq_ref	PRIMARY,d	PRIMARY	1	func	1	Using where
3	DEPENDENT SUBQUERY	t2	index	NULL	d	2	NULL	1	Using index
DROP TABLE t2;
CREATE TABLE t2 (b INT, c INT, UNIQUE KEY (b), UNIQUE KEY (b, c )) ENGINE=INNODB;
INSERT INTO t2 VALUES (1, 1);
SELECT 1 FROM t1
WHERE a != (SELECT 1 FROM t2 WHERE a <=> b OR a > '' AND 6 = 7 ORDER BY b, c);
1
DROP TABLE t1, t2;
#
# Bug #13639204 64111: CRASH ON SELECT SUBQUERY WITH NON UNIQUE
# INDEX
#
CREATE TABLE t1 (
id int
) ENGINE=InnoDB;
INSERT INTO t1 (id) VALUES (11);
CREATE TABLE t2 (
t1_id int,
position int,
KEY t1_id (t1_id),
KEY t1_id_position (t1_id,position)
) ENGINE=InnoDB;
EXPLAIN SELECT
(SELECT position FROM t2
WHERE t2.t1_id = t1.id
ORDER BY t2.t1_id , t2.position
LIMIT 10,1
) AS maxkey
FROM t1
LIMIT 1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	1	
2	DEPENDENT SUBQUERY	t2	ref	t1_id,t1_id_position	t1_id_position	5	test.t1.id	1	Using where; Using index
SELECT
(SELECT position FROM t2
WHERE t2.t1_id = t1.id
ORDER BY t2.t1_id , t2.position
LIMIT 10,1
) AS maxkey
FROM t1
LIMIT 1;
maxkey
NULL
DROP TABLE t1,t2;
End of 5.1 tests
#
# lp:827416 Crash in select_describe() on EXPLAIN with DISTINCT in nested subqueries
#
CREATE TABLE t3 ( b int) ENGINE=InnoDB;
CREATE TABLE t2 ( c int) ENGINE=InnoDB;
CREATE TABLE t1 ( a int NOT NULL , PRIMARY KEY (a)) ENGINE=InnoDB;
EXPLAIN SELECT *
FROM t1
WHERE t1.a = (
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	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 *
FROM t1
WHERE t1.a = (
SELECT SUM( c )
FROM t2
WHERE (SELECT DISTINCT b FROM t3) > 0);
a
DROP TABLE t1, t2, t3;
#
# lp:858148 Fourth crash in select_describe() with nested subqueries
#
CREATE TABLE t1 ( f1 int(11)) ENGINE=InnoDB;
CREATE TABLE t2 ( f1 int(11), f2 int(11), PRIMARY KEY (f1)) ;
CREATE TABLE t3 ( f3 int(11)) ENGINE=InnoDB;
EXPLAIN
SELECT MAX( f1 ) FROM t2
WHERE f2 >= (
SELECT SUM( f1 )
FROM t1
WHERE EXISTS (
SELECT f3
FROM t3
GROUP BY 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 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	
SELECT MAX( f1 ) FROM t2
WHERE f2 >= (
SELECT SUM( f1 )
FROM t1
WHERE EXISTS (
SELECT f3
FROM t3
GROUP BY 1
)
);
MAX( f1 )
NULL
drop table t1, t2, t3;
#
# LP BUG#1006231 crash in select_describe
#
create table t1(a1 int) ENGINE=InnoDB;
insert into t1 values (1);
explain
select 1 from t1 where 1 like (select 1 from t1 where 1 <=> (select 1 from t1 group by a1));
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	1	
2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	1	
3	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	1	Using temporary; Using filesort
select 1 from t1 where 1 like (select 1 from t1 where 1 <=> (select 1 from t1 group by a1));
1
1
drop table t1;
#
# MDEV-3988 crash in create_tmp_table
#
drop table if exists `t1`,`t2`;
Warnings:
Note	1051	Unknown table 'test.t1'
Note	1051	Unknown table 'test.t2'
create table `t1`(`a` char(1) character set utf8)engine=innodb;
create table `t2`(`b` char(1) character set utf8)engine=memory;
select distinct (select 1 from `t2` where `a`) `d2` from `t1`;
d2
select distinct (select 1 from `t2` where `a`) `d2`, a from `t1`;
d2	a
select distinct a, (select 1 from `t2` where `a`) `d2` from `t1`;
a	d2
select distinct (1 + (select 1 from `t2` where `a`)) `d2` from `t1`;
d2
drop table t1,t2;
#
# MDEV-4042: Assertion `table->key_read == 0' fails in close_thread_table on EXPLAIN with GROUP BY and HAVING in EXISTS SQ, 
# MDEV-4536: ...sql/sql_base.cc:1598: bool close_thread_table(THD*, TABLE**): Assertion `table->key_read == 0' failed.
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
CREATE TABLE t2 (b INT PRIMARY KEY, c INT) ENGINE=InnoDB;
CREATE TABLE t3 (d INT) ENGINE=InnoDB;
EXPLAIN 
SELECT * FROM t1 WHERE EXISTS ( SELECT b FROM t2, t3 GROUP BY b HAVING b != 3 );
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	t2	index	NULL	PRIMARY	4	NULL	1	Using index; Using temporary; Using filesort
2	SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (flat, BNL join)
SELECT * FROM t1 WHERE EXISTS ( SELECT b FROM t2, t3 GROUP BY b HAVING b != 3 );
a
DROP TABLE t1,t2,t3;
CREATE TABLE t1 (
pk int auto_increment primary key, 
col_int_key int(11),
key col_int_key (col_int_key),col_varchar_key varchar(128), 
key (col_varchar_key)
) engine=innodb;
EXPLAIN 
SELECT 1 FROM t1 AS alias1 
WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1 
FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN 
t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key ) 
) 
GROUP BY SQ2_field1 
HAVING SQ2_alias1 . col_int_key >= 7
);
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	SQ2_alias2	index	NULL	col_int_key	5	NULL	1	Using index; Using temporary; Using filesort
2	SUBQUERY	SQ2_alias1	ref	col_int_key	col_int_key	5	test.SQ2_alias2.col_int_key	1	Using where; Using index
SELECT 1 FROM t1 AS alias1 
WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1 
FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN 
t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key ) 
) 
GROUP BY SQ2_field1 
HAVING SQ2_alias1 . col_int_key >= 7
);
1
drop table t1;
set optimizer_switch=@subselect_innodb_tmp;
#
# MDEV-9635:Server crashes in part_of_refkey  or assertion
# `!created && key_to_save < (int)s->keys' failed in
# TABLE::use_index(int) or with join_cache_level>2
#
SET join_cache_level=3;
CREATE TABLE t1 (f1 VARCHAR(1024)) ENGINE=InnoDB;
CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
CREATE TABLE t2 (f2 VARCHAR(4)) ENGINE=InnoDB;
INSERT INTO t2 VALUES ('foo'),('bar');
SELECT * FROM v1, t2 WHERE ( f1, f2 ) IN ( SELECT f1, f1 FROM t1 );
f1	f2
set join_cache_level = default;
drop view v1;
drop table t1,t2;
#
# MDEV-10693: cost-based choice between materialization and in-to-exists
#             for a subquery from the expression used in ref access 
#
CREATE TABLE t1 (i1 INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 INT) ENGINE=InnoDB;
CREATE TABLE t3 (i3 INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t3 VALUES (3);
SELECT * FROM t1
WHERE NULL IN ( SELECT i2 FROM t2 
WHERE i1 IN ( i2 IN ( SELECT i3 FROM t3 ) ) AND i2 = 2 );
i1
DROP TABLE t1,t2,t3;
#
# MDEV-6041: ORDER BY+subqueries: subquery_table.key=outer_table.col is not recongized as binding
#
create table t1(a int) engine=innodb;
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2(
id int primary key,
key1 int,
col1 int,
key(key1)
) engine=innodb;
insert into t2 
select 
A.a + B.a*10 + C.a*100 + D.a* 1000, 
A.a + 10*B.a, 
123456 
from t1 A, t1 B, t1 C, t1 D;
# Table tsubq:
#   - must use 'ref' (not 'index'), and must not use 'Using filesort'
#   - shows a bad estimate for 'rows' (but I'm not sure if one can do better w/o histograms)
explain select 
(SELECT 
concat(id, '-', key1, '-', col1)
FROM t2
WHERE t2.key1 = t1.a
ORDER BY t2.id ASC LIMIT 1)
from 
t1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	10	
2	DEPENDENT SUBQUERY	t2	ref	key1	key1	5	test.t1.a	1	Using where
#
# MDEV-6081: ORDER BY+ref(const): selectivity is very incorrect (MySQL Bug#14338686)
#
alter table t2 add key2 int;
update t2 set key2=key1;
alter table t2 add key(key2);
analyze table t2;
Table	Op	Msg_type	Msg_text
test.t2	analyze	status	OK
flush tables;
# Table tsubq must use 'ref' + Using filesort (not 'index' w/o filesort)
explain select 
(SELECT 
concat(id, '-', key1, '-', col1)
FROM t2
WHERE t2.key1 = t1.a
ORDER BY t2.key2 ASC LIMIT 1)
from 
t1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	#	
2	DEPENDENT SUBQUERY	t2	ref	key1	key1	5	test.t1.a	#	Using where; Using filesort
drop table t1,t2;
#
# mdev-12931: semi-join in ON expression of STRAIGHT_JOIN 
#             joining a base table and a mergeable derived table
#
CREATE TABLE t1 (f1 int) ENGINE=InnoDB;
INSERT INTO t1 VALUES (3),(2);
CREATE TABLE t2 (f2 int) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1),(4);
CREATE TABLE t3 (f3 int) ENGINE=InnoDB;
INSERT INTO t3 VALUES (5),(6);
CREATE TABLE t4 (f4 int) ENGINE=InnoDB;
INSERT INTO t4 VALUES (1),(8);
SELECT * 
FROM t1 
INNER JOIN 
( t2 STRAIGHT_JOIN ( SELECT * FROM t3 ) AS sq
ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
ON ( f1 >= f2 );
f1	f2	f3
3	1	5
2	1	5
3	1	6
2	1	6
EXPLAIN EXTENDED
SELECT * 
FROM t1 
INNER JOIN 
( t2 STRAIGHT_JOIN ( SELECT * FROM t3 ) AS sq
ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
ON ( f1 >= f2 );
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using join buffer (flat, BNL join)
1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (incremental, BNL join)
1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using join buffer (incremental, BNL join)
3	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
Warnings:
Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t2`.`f2` AS `f2`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` join `test`.`t2` semi join (`test`.`t4`) join `test`.`t3` where ((`test`.`t4`.`f4` = 1) and (`test`.`t1`.`f1` >= `test`.`t2`.`f2`))
DROP TABLE t1,t2,t3,t4;