Create 'main' test directory and move 't' and 'r' there

1 files changed, 0 insertions, 1181 deletions

diff --git a/mysql-test/t/null.test b/mysql-test/t/null.test
deleted file mode 100644
index 403790356ce..00000000000
--- a/mysql-test/t/null.test
+++ /dev/null
@@ -1,1181 +0,0 @@
-# Initialise
---disable_warnings
-drop table if exists t1, t2;
---enable_warnings
-
-#
-# Testing of NULL in a lot of different places
-#
-
-select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnull(null,1),ifnull(null,"TRUE"),ifnull("TRUE","ERROR"),1/0 is null,1 is not null;
-explain extended select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnull(null,1),ifnull(null,"TRUE"),ifnull("TRUE","ERROR"),1/0 is null,1 is not null;
-select 1 | NULL,1 & NULL,1+NULL,1-NULL;
-select NULL=NULL,NULL<>NULL,IFNULL(NULL,1.1)+0,IFNULL(NULL,1) | 0;
-select strcmp("a",NULL),(1<NULL)+0.0,NULL regexp "a",null like "a%","a%" like null;
-select concat("a",NULL),replace(NULL,"a","b"),replace("string","i",NULL),replace("string",NULL,"i"),insert("abc",1,1,NULL),left(NULL,1);
-select repeat("a",0),repeat("ab",5+5),repeat("ab",-1),reverse(NULL);
-select field(NULL,"a","b","c");
-select 2 between null and 1,2 between 3 AND NULL,NULL between 1 and 2,2 between NULL and 3, 2 between 1 AND null;
-explain extended select 2 between null and 1,2 between 3 AND NULL,NULL between 1 and 2,2 between NULL and 3, 2 between 1 AND null;
-SELECT NULL AND NULL, 1 AND NULL, NULL AND 1, NULL OR NULL, 0 OR NULL, NULL OR 0;
-SELECT (NULL OR NULL) IS NULL;
-select NULL AND 0, 0 and NULL;
-select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."),inet_aton("");
-explain extended select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."),inet_aton("");
-select not null is true, not null or true, not null and false, not null <=> null;
-
-create table t1 (x int);
-insert into t1 values (null);
-select * from t1 where x != 0;
-drop table t1;
-
-#
-# Test problem med index on NULL columns and testing with =NULL;
-#
-
-CREATE TABLE t1 (
-  indexed_field int default NULL,
-  KEY indexed_field (indexed_field)
-);
-INSERT INTO t1 VALUES (NULL),(NULL);
-SELECT * FROM t1 WHERE indexed_field=NULL;
-SELECT * FROM t1 WHERE indexed_field IS NULL;
-SELECT * FROM t1 WHERE indexed_field<=>NULL;
-DROP TABLE t1;
-
-#
-# Testing of IFNULL
-#
-create table t1 (a int, b int) engine=myisam;
-insert into t1 values(20,null);
-select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
-t2.b=t3.a;
-select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
-t2.b=t3.a order by 1;
-insert into t1 values(10,null);
-select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
-t2.b=t3.a order by 1;
-drop table t1;
-
-#
-# Test inserting and updating with NULL
-#
-CREATE TABLE t1 (a varchar(16) NOT NULL default '', b smallint(6) NOT NULL default 0, c datetime NOT NULL default '0000-00-00 00:00:00', d smallint(6) NOT NULL default 0);
-INSERT IGNORE INTO t1 SET a = "", d= "2003-01-14 03:54:55";
-UPDATE IGNORE t1 SET d=1/NULL;
-UPDATE IGNORE t1 SET d=NULL;
---error 1048
-INSERT INTO t1 (a) values (null);
---error 1048
-INSERT INTO t1 (a) values (1/null);
-INSERT IGNORE INTO t1 (a) values (null),(null);
---error 1048
-INSERT INTO t1 (b) values (null);
---error 1048
-INSERT INTO t1 (b) values (1/null);
-INSERT IGNORE INTO t1 (b) values (null),(null);
---error 1048
-INSERT INTO t1 (c) values (null);
---error 1048
-INSERT INTO t1 (c) values (1/null);
-INSERT IGNORE INTO t1 (c) values (null),(null);
---error 1048
-INSERT INTO t1 (d) values (null);
---error 1048
-INSERT INTO t1 (d) values (1/null);
-INSERT IGNORE INTO t1 (d) values (null),(null);
-select * from t1;
-drop table t1;
-
-#
-# Test to check elimination of IS NULL predicate for a non-nullable attribute
-# (bug #1990)  
-#
-create table t1 (a int not null, b int not null, index idx(a));
-insert into t1 values
-  (1,1), (2,2), (3,3), (4,4), (5,5), (6,6),
-  (7,7), (8,8), (9,9), (10,10), (11,11), (12,12);
-explain select * from t1 where a between 2 and 3;
-explain select * from t1 where a between 2 and 3 or b is null;
-drop table t1;
-select cast(NULL as signed);
-
-#
-# IS NULL is unable to use index in range if column is declared not null
-# (Bug #4256)
-#
-create table t1(i int, key(i));
-insert into t1 values(1);
-insert into t1 select i*2 from t1;
-insert into t1 select i*2 from t1;
-insert into t1 select i*2 from t1;
-insert into t1 select i*2 from t1;
-insert into t1 select i*2 from t1;
-insert into t1 select i*2 from t1;
-insert into t1 select i*2 from t1;
-insert into t1 select i*2 from t1;
-insert into t1 select i*2 from t1;
-insert into t1 values(null);
-explain select * from t1 where i=2 or i is null;
-select count(*) from t1 where i=2 or i is null;
-SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
-alter table t1 change i i int not null;
-explain select * from t1 where i=2 or i is null;
-select count(*) from t1 where i=2 or i is null;
-drop table t1;
-
-#
-# NULL has its own type BINARY(0) by default.
-# But NULL should be weaker than a constant
-# when mixing charsets/collations
-#
-set names latin2;
-# Check that result type is taken from a non-null string
-create table t1 select
-  null as c00,
-  if(1, null, 'string') as c01,
-  if(0, null, 'string') as c02,
-  ifnull(null, 'string') as c03,
-  ifnull('string', null) as c04,
-  case when 0 then null else 'string' end as c05,
-  case when 1 then null else 'string' end as c06,
-  coalesce(null, 'string') as c07,
-  coalesce('string', null) as c08,
-  least('string',null) as c09,
-  least(null, 'string') as c10,
-  greatest('string',null) as c11,
-  greatest(null, 'string') as c12,
-  nullif('string', null) as c13,
-  nullif(null, 'string') as c14,
-  trim('string' from null) as c15,
-  trim(null from 'string') as c16,
-  substring_index('string', null, 1) as c17,
-  substring_index(null, 'string', 1) as c18,
-  elt(1, null, 'string') as c19,
-  elt(1, 'string', null) as c20,
-  concat('string', null) as c21,
-  concat(null, 'string') as c22,
-  concat_ws('sep', 'string', null) as c23,
-  concat_ws('sep', null, 'string') as c24,
-  concat_ws(null, 'string', 'string') as c25,
-  make_set(3, 'string', null) as c26,
-  make_set(3, null, 'string') as c27,
-  export_set(3, null, 'off', 'sep') as c29,
-  export_set(3, 'on', null, 'sep') as c30,
-  export_set(3, 'on', 'off', null) as c31,
-  replace(null, 'from', 'to') as c32,
-  replace('str', null, 'to') as c33,
-  replace('str', 'from', null) as c34,
-  insert('str', 1, 2, null) as c35,
-  insert(null, 1, 2, 'str') as c36,
-  lpad('str', 10, null) as c37,
-  rpad(null, 10, 'str') as c38;
-  
-show create table t1;
-drop table t1;
-
-#
-# Check that comparison is done according to
-# non-null string collation, i.e. case insensitively,
-# rather than according to NULL's collation, i.e. case sensitively
-#
-# in field
-select 
-  case 'str' when 'STR' then 'str' when null then 'null' end as c01,
-  case 'str' when null then 'null' when 'STR' then 'str' end as c02,
-  field(null, 'str1', 'str2') as c03,
-  field('str1','STR1', null) as c04,
-  field('str1', null, 'STR1') as c05,
-  'string' in ('STRING', null) as c08,
-  'string' in (null, 'STRING') as c09;
-
-# Restore charset to the default value.
-set names latin1;
-
-#
-# Bug#19145: mysqld crashes if you set the default value of an enum field to NULL
-#
-create table bug19145a (e enum('a','b','c')          default 'b' , s set('x', 'y', 'z')          default 'y' ) engine=MyISAM;
-create table bug19145b (e enum('a','b','c')          default null, s set('x', 'y', 'z')          default null) engine=MyISAM;
-
-create table bug19145c (e enum('a','b','c') not null default 'b' , s set('x', 'y', 'z') not null default 'y' ) engine=MyISAM;
-
-# Invalid default value for 's'
---error 1067
-create table bug19145setnotnulldefaultnull (e enum('a','b','c')          default null, s set('x', 'y', 'z') not null default null) engine=MyISAM;
-
-# Invalid default value for 'e'
---error 1067
-create table bug19145enumnotnulldefaultnull (e enum('a','b','c') not null default null, s set('x', 'y', 'z')          default null) engine=MyISAM;
-
-alter table bug19145a alter column e set default null;
-alter table bug19145a alter column s set default null;
-alter table bug19145a add column (i int);
-
-alter table bug19145b alter column e set default null;
-alter table bug19145b alter column s set default null;
-alter table bug19145b add column (i int);
-
-# Invalid default value for 'e'
---error 1067
-alter table bug19145c alter column e set default null;
-
-# Invalid default value for 's'
---error 1067
-alter table bug19145c alter column s set default null;
-alter table bug19145c add column (i int);
-
-show create table bug19145a;
-show create table bug19145b;
-show create table bug19145c;
-
-drop table bug19145a;
-drop table bug19145b;
-drop table bug19145c;
-
---echo # End of 4.1 tests
-
---echo #
---echo # Bug #31471: decimal_bin_size: Assertion `scale >= 0 &&
---echo #             precision > 0 && scale <= precision'
---echo #
-
-CREATE TABLE t1 (a DECIMAL (1, 0) ZEROFILL, b DECIMAL (1, 0) ZEROFILL);
-INSERT INTO t1 (a, b) VALUES (0, 0);
-
-CREATE TABLE t2 SELECT IFNULL(a, b) FROM t1;
-DESCRIBE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 SELECT IFNULL(a, NULL) FROM t1;
-DESCRIBE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 SELECT IFNULL(NULL, b) FROM t1;
-DESCRIBE t2;
-
-DROP TABLE t1, t2;
-
---echo # End of 5.0 tests
-
---echo #
---echo # MDEV-4895 Valgrind warnings (Conditional jump or move depends on uninitialised value) in Field_datetime::get_date on GREATEST(..) IS NULL
---echo #
-
-CREATE TABLE t1 (dt DATETIME NOT NULL);
-INSERT INTO t1 VALUES (NOW()),(NOW());
-
-EXPLAIN
-SELECT * FROM t1 WHERE concat( dt, '2012-12-21 12:12:12' ) IS NULL;
-SELECT * FROM t1 WHERE concat( dt, '2012-12-21 12:12:12' ) IS NULL;
-
-DROP TABLE t1;
-CREATE TABLE t1 (dt INT NOT NULL);
-INSERT INTO t1 VALUES (1),(2);
-EXPLAIN
-SELECT * FROM t1 WHERE concat( dt, '1' ) IS NULL;
-SELECT * FROM t1 WHERE concat( dt, '1' ) IS NULL;
-
-DROP TABLE t1;
-CREATE TABLE t1 (dt INT NOT NULL);
-INSERT INTO t1 VALUES (1),(2);
-
-EXPLAIN
-SELECT * FROM t1 WHERE NOT (concat( dt, '1' ) IS NOT NULL); 
-SELECT * FROM t1 WHERE NOT (concat( dt, '1' ) IS NOT NULL); 
-
-DROP TABLE t1;
-
---echo #
---echo # Bug mdev-5132: crash when exeicuting a join query
---echo #                with IS NULL and IS NOT NULL in where
---echo #
-
-CREATE TABLE t1 (a DATE, b INT, c INT, KEY(a), KEY(b), KEY(c)) ENGINE=MyISAM; 
-CREATE TABLE t2 (d DATE) ENGINE=MyISAM; 
-
-SELECT  * FROM t1,t2 WHERE  1 IS NOT NULL AND t1.b IS NULL;
-
-DROP TABLE t1,t2;
-
---echo #
---echo # Start of 10.0 tests
---echo #
-
---echo #
---echo # MDEV-7001 Bad result for NOT NOT STRCMP('a','b') and NOT NOT NULLIF(2,3) 
---echo #
-SELECT NOT NOT NULLIF(2,3);
-
---echo #
---echo # End of 10.0 tests
---echo #
-
---echo #
---echo # Start of 10.1 tests
---echo #
-
---echo #
---echo # MDEV-7146 NULLIF returns unexpected result with a YEAR field
---echo #
-CREATE TABLE t1 (a YEAR(2));
-INSERT INTO t1 VALUES (0);
-SELECT a,NULLIF(a,2000),NULLIF(2000,a) FROM t1;
-SELECT a,NULLIF(a,2001),NULLIF(2001,a) FROM t1;
-DROP TABLE t1;
-
---echo #
---echo # MDEV-7005 NULLIF does not work as documented
---echo #
-
-CREATE TABLE t1 (a TIME);
-CREATE TABLE t2 AS SELECT a,NULLIF(a,a), CASE WHEN a=a THEN NULL ELSE a END FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t1,t2;
-
---error ER_CANT_AGGREGATE_2COLLATIONS
-SELECT NULLIF(_latin1'a' COLLATE latin1_general_ci, _latin1'a' COLLATE latin1_bin);
-
-SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
-CREATE TABLE t1 AS SELECT
-  NULLIF(1,1),
-  NULLIF(1,1.0),
-  NULLIF(1,1e0),
-  NULLIF(1,'2001-01-01'),
-  NULLIF(1,TIME'00:00:00');
-SHOW CREATE TABLE t1;
-DROP TABLE t1;
-
-SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
-CREATE TABLE t1 AS SELECT
-  NULLIF(1.0,1),
-  NULLIF(1.0,1.0),
-  NULLIF(1.0,1e0),
-  NULLIF(1.0,'2001-01-01'),
-  NULLIF(1.0,TIME'00:00:00');
-SHOW CREATE TABLE t1;
-DROP TABLE t1;
-
-SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
-CREATE TABLE t1 AS SELECT
-  NULLIF(1e0,1),
-  NULLIF(1e0,1.0),
-  NULLIF(1e0,1e0),
-  NULLIF(1e0,'2001-01-01'),
-  NULLIF(1e0,TIME'00:00:00');
-SHOW CREATE TABLE t1;
-DROP TABLE t1;
-
-CREATE TABLE t1 AS SELECT
-  NULLIF('1',1),
-  NULLIF('1',1.0),
-  NULLIF('1',1e0),
-  NULLIF('1','2001-01-01'),
-  NULLIF('1',TIME'00:00:00');
-SHOW CREATE TABLE t1;
-DROP TABLE t1;
-
-SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
-CREATE TABLE t1 AS SELECT
-  NULLIF(TIMESTAMP'2001-01-01 00:00:00',1),
-  NULLIF(TIMESTAMP'2001-01-01 00:00:00',1.0),
-  NULLIF(TIMESTAMP'2001-01-01 00:00:00',1e0),
-  NULLIF(TIMESTAMP'2001-01-01 00:00:00','2001-01-01'),
-  NULLIF(TIMESTAMP'2001-01-01 00:00:00',TIME'00:00:00');
-SHOW CREATE TABLE t1;
-DROP TABLE t1;
-
-SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
-CREATE TABLE t1 AS SELECT
-  NULLIF(DATE'2001-01-01',1),
-  NULLIF(DATE'2001-01-01',1.0),
-  NULLIF(DATE'2001-01-01',1e0),
-  NULLIF(DATE'2001-01-01','2001-01-01'),
-  NULLIF(DATE'2001-01-01',TIME'00:00:00');
-SHOW CREATE TABLE t1;
-DROP TABLE t1;
-
-CREATE TABLE t1 AS SELECT
-  NULLIF(TIME'00:00:01',1),
-  NULLIF(TIME'00:00:01',1.0),
-  NULLIF(TIME'00:00:01',1e0),
-  NULLIF(TIME'00:00:01','00:00:00'),
-  NULLIF(TIME'00:00:01',DATE'2001-01-01');
-SHOW CREATE TABLE t1;
-DROP TABLE t1;
-
-CREATE TABLE t1
-(
-  c_tinyint    TINYINT,
-  c_smallint   SMALLINT,
-  c_int        INT,
-  c_bigint     BIGINT,
-  c_float      FLOAT,
-  c_double     DOUBLE,
-  c_decimal103 DECIMAL(10,3),
-  c_varchar10  VARCHAR(10),
-  c_tinytext   TINYTEXT,
-  c_text       TEXT,
-  c_mediumtext MEDIUMTEXT,
-  c_longtext   LONGTEXT,
-  c_tinyblob   TINYBLOB,
-  c_blob       BLOB,
-  c_mediumblob MEDIUMBLOB,
-  c_longblob   LONGBLOB,
-  c_enum       ENUM('one','two','tree'),
-  c_datetime3  DATETIME(3),
-  c_timestamp3 TIMESTAMP(3),
-  c_date       DATE,
-  c_time       TIME
-);
-
---echo #
---echo # Checking that the return type depends only on args[0], even when compared to a super type
---echo #
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_tinyint,  1),
-  NULLIF(c_tinyint,  c_smallint),
-  NULLIF(c_tinyint,  c_tinyint),
-  NULLIF(c_tinyint,  c_int),
-  NULLIF(c_tinyint,  c_bigint),
-  NULLIF(c_tinyint,  c_float),
-  NULLIF(c_tinyint,  c_double),
-  NULLIF(c_tinyint,  c_decimal103),
-  NULLIF(c_tinyint,  c_varchar10),
-  NULLIF(c_tinyint,  c_text),
-  NULLIF(c_tinyint,  c_blob),
-  NULLIF(c_tinyint,  c_enum),
-  NULLIF(c_tinyint,  c_datetime3),
-  NULLIF(c_tinyint,  c_timestamp3),
-  NULLIF(c_tinyint,  c_date),
-  NULLIF(c_tinyint,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_smallint,  1),
-  NULLIF(c_smallint,  c_smallint),
-  NULLIF(c_smallint,  c_tinyint),
-  NULLIF(c_smallint,  c_int),
-  NULLIF(c_smallint,  c_bigint),
-  NULLIF(c_smallint,  c_float),
-  NULLIF(c_smallint,  c_double),
-  NULLIF(c_smallint,  c_decimal103),
-  NULLIF(c_smallint,  c_varchar10),
-  NULLIF(c_smallint,  c_text),
-  NULLIF(c_smallint,  c_blob),
-  NULLIF(c_smallint,  c_enum),
-  NULLIF(c_smallint,  c_datetime3),
-  NULLIF(c_smallint,  c_timestamp3),
-  NULLIF(c_smallint,  c_date),
-  NULLIF(c_smallint,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_int,  1),
-  NULLIF(c_int,  c_smallint),
-  NULLIF(c_int,  c_tinyint),
-  NULLIF(c_int,  c_int),
-  NULLIF(c_int,  c_bigint),
-  NULLIF(c_int,  c_float),
-  NULLIF(c_int,  c_double),
-  NULLIF(c_int,  c_decimal103),
-  NULLIF(c_int,  c_varchar10),
-  NULLIF(c_int,  c_text),
-  NULLIF(c_int,  c_blob),
-  NULLIF(c_int,  c_enum),
-  NULLIF(c_int,  c_datetime3),
-  NULLIF(c_int,  c_timestamp3),
-  NULLIF(c_int,  c_date),
-  NULLIF(c_int,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_bigint,  1),
-  NULLIF(c_bigint,  c_smallint),
-  NULLIF(c_bigint,  c_tinyint),
-  NULLIF(c_bigint,  c_int),
-  NULLIF(c_bigint,  c_bigint),
-  NULLIF(c_bigint,  c_float),
-  NULLIF(c_bigint,  c_double),
-  NULLIF(c_bigint,  c_decimal103),
-  NULLIF(c_bigint,  c_varchar10),
-  NULLIF(c_bigint,  c_text),
-  NULLIF(c_bigint,  c_blob),
-  NULLIF(c_bigint,  c_enum),
-  NULLIF(c_bigint,  c_datetime3),
-  NULLIF(c_bigint,  c_timestamp3),
-  NULLIF(c_bigint,  c_date),
-  NULLIF(c_bigint,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-# QQ: this should probably create a FLOAT column instead of a DOUBLE column
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_float,  1),
-  NULLIF(c_float,  c_smallint),
-  NULLIF(c_float,  c_tinyint),
-  NULLIF(c_float,  c_int),
-  NULLIF(c_float,  c_bigint),
-  NULLIF(c_float,  c_float),
-  NULLIF(c_float,  c_double),
-  NULLIF(c_float,  c_decimal103),
-  NULLIF(c_float,  c_varchar10),
-  NULLIF(c_float,  c_text),
-  NULLIF(c_float,  c_blob),
-  NULLIF(c_float,  c_enum),
-  NULLIF(c_float,  c_datetime3),
-  NULLIF(c_float,  c_timestamp3),
-  NULLIF(c_float,  c_date),
-  NULLIF(c_float,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_double,  1),
-  NULLIF(c_double,  c_smallint),
-  NULLIF(c_double,  c_tinyint),
-  NULLIF(c_double,  c_int),
-  NULLIF(c_double,  c_bigint),
-  NULLIF(c_double,  c_float),
-  NULLIF(c_double,  c_double),
-  NULLIF(c_double,  c_decimal103),
-  NULLIF(c_double,  c_varchar10),
-  NULLIF(c_double,  c_text),
-  NULLIF(c_double,  c_blob),
-  NULLIF(c_double,  c_enum),
-  NULLIF(c_double,  c_datetime3),
-  NULLIF(c_double,  c_timestamp3),
-  NULLIF(c_double,  c_date),
-  NULLIF(c_double,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_decimal103,  1),
-  NULLIF(c_decimal103,  c_smallint),
-  NULLIF(c_decimal103,  c_tinyint),
-  NULLIF(c_decimal103,  c_int),
-  NULLIF(c_decimal103,  c_bigint),
-  NULLIF(c_decimal103,  c_float),
-  NULLIF(c_decimal103,  c_double),
-  NULLIF(c_decimal103,  c_decimal103),
-  NULLIF(c_decimal103,  c_varchar10),
-  NULLIF(c_decimal103,  c_text),
-  NULLIF(c_decimal103,  c_blob),
-  NULLIF(c_decimal103,  c_enum),
-  NULLIF(c_decimal103,  c_datetime3),
-  NULLIF(c_decimal103,  c_timestamp3),
-  NULLIF(c_decimal103,  c_date),
-  NULLIF(c_decimal103,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_varchar10,  1),
-  NULLIF(c_varchar10,  c_smallint),
-  NULLIF(c_varchar10,  c_tinyint),
-  NULLIF(c_varchar10,  c_int),
-  NULLIF(c_varchar10,  c_bigint),
-  NULLIF(c_varchar10,  c_float),
-  NULLIF(c_varchar10,  c_double),
-  NULLIF(c_varchar10,  c_decimal103),
-  NULLIF(c_varchar10,  c_varchar10),
-  NULLIF(c_varchar10,  c_text),
-  NULLIF(c_varchar10,  c_blob),
-  NULLIF(c_varchar10,  c_enum),
-  NULLIF(c_varchar10,  c_datetime3),
-  NULLIF(c_varchar10,  c_timestamp3),
-  NULLIF(c_varchar10,  c_date),
-  NULLIF(c_varchar10,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_tinytext,  1),
-  NULLIF(c_tinytext,  c_smallint),
-  NULLIF(c_tinytext,  c_tinyint),
-  NULLIF(c_tinytext,  c_int),
-  NULLIF(c_tinytext,  c_bigint),
-  NULLIF(c_tinytext,  c_float),
-  NULLIF(c_tinytext,  c_double),
-  NULLIF(c_tinytext,  c_decimal103),
-  NULLIF(c_tinytext,  c_varchar10),
-  NULLIF(c_tinytext,  c_text),
-  NULLIF(c_tinytext,  c_blob),
-  NULLIF(c_tinytext,  c_enum),
-  NULLIF(c_tinytext,  c_datetime3),
-  NULLIF(c_tinytext,  c_timestamp3),
-  NULLIF(c_tinytext,  c_date),
-  NULLIF(c_tinytext,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_text,  1),
-  NULLIF(c_text,  c_smallint),
-  NULLIF(c_text,  c_tinyint),
-  NULLIF(c_text,  c_int),
-  NULLIF(c_text,  c_bigint),
-  NULLIF(c_text,  c_float),
-  NULLIF(c_text,  c_double),
-  NULLIF(c_text,  c_decimal103),
-  NULLIF(c_text,  c_varchar10),
-  NULLIF(c_text,  c_text),
-  NULLIF(c_text,  c_blob),
-  NULLIF(c_text,  c_enum),
-  NULLIF(c_text,  c_datetime3),
-  NULLIF(c_text,  c_timestamp3),
-  NULLIF(c_text,  c_date),
-  NULLIF(c_text,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_mediumtext,  1),
-  NULLIF(c_mediumtext,  c_smallint),
-  NULLIF(c_mediumtext,  c_tinyint),
-  NULLIF(c_mediumtext,  c_int),
-  NULLIF(c_mediumtext,  c_bigint),
-  NULLIF(c_mediumtext,  c_float),
-  NULLIF(c_mediumtext,  c_double),
-  NULLIF(c_mediumtext,  c_decimal103),
-  NULLIF(c_mediumtext,  c_varchar10),
-  NULLIF(c_mediumtext,  c_text),
-  NULLIF(c_mediumtext,  c_blob),
-  NULLIF(c_mediumtext,  c_enum),
-  NULLIF(c_mediumtext,  c_datetime3),
-  NULLIF(c_mediumtext,  c_timestamp3),
-  NULLIF(c_mediumtext,  c_date),
-  NULLIF(c_mediumtext,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_longtext,  1),
-  NULLIF(c_longtext,  c_smallint),
-  NULLIF(c_longtext,  c_tinyint),
-  NULLIF(c_longtext,  c_int),
-  NULLIF(c_longtext,  c_bigint),
-  NULLIF(c_longtext,  c_float),
-  NULLIF(c_longtext,  c_double),
-  NULLIF(c_longtext,  c_decimal103),
-  NULLIF(c_longtext,  c_varchar10),
-  NULLIF(c_longtext,  c_text),
-  NULLIF(c_longtext,  c_blob),
-  NULLIF(c_longtext,  c_enum),
-  NULLIF(c_longtext,  c_datetime3),
-  NULLIF(c_longtext,  c_timestamp3),
-  NULLIF(c_longtext,  c_date),
-  NULLIF(c_longtext,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_tinyblob,  1),
-  NULLIF(c_tinyblob,  c_smallint),
-  NULLIF(c_tinyblob,  c_tinyint),
-  NULLIF(c_tinyblob,  c_int),
-  NULLIF(c_tinyblob,  c_bigint),
-  NULLIF(c_tinyblob,  c_float),
-  NULLIF(c_tinyblob,  c_double),
-  NULLIF(c_tinyblob,  c_decimal103),
-  NULLIF(c_tinyblob,  c_varchar10),
-  NULLIF(c_tinyblob,  c_text),
-  NULLIF(c_tinyblob,  c_blob),
-  NULLIF(c_tinyblob,  c_enum),
-  NULLIF(c_tinyblob,  c_datetime3),
-  NULLIF(c_tinyblob,  c_timestamp3),
-  NULLIF(c_tinyblob,  c_date),
-  NULLIF(c_tinyblob,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_blob,  1),
-  NULLIF(c_blob,  c_smallint),
-  NULLIF(c_blob,  c_tinyint),
-  NULLIF(c_blob,  c_int),
-  NULLIF(c_blob,  c_bigint),
-  NULLIF(c_blob,  c_float),
-  NULLIF(c_blob,  c_double),
-  NULLIF(c_blob,  c_decimal103),
-  NULLIF(c_blob,  c_varchar10),
-  NULLIF(c_blob,  c_text),
-  NULLIF(c_blob,  c_blob),
-  NULLIF(c_blob,  c_enum),
-  NULLIF(c_blob,  c_datetime3),
-  NULLIF(c_blob,  c_timestamp3),
-  NULLIF(c_blob,  c_date),
-  NULLIF(c_blob,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_mediumblob,  1),
-  NULLIF(c_mediumblob,  c_smallint),
-  NULLIF(c_mediumblob,  c_tinyint),
-  NULLIF(c_mediumblob,  c_int),
-  NULLIF(c_mediumblob,  c_bigint),
-  NULLIF(c_mediumblob,  c_float),
-  NULLIF(c_mediumblob,  c_double),
-  NULLIF(c_mediumblob,  c_decimal103),
-  NULLIF(c_mediumblob,  c_varchar10),
-  NULLIF(c_mediumblob,  c_text),
-  NULLIF(c_mediumblob,  c_blob),
-  NULLIF(c_mediumblob,  c_enum),
-  NULLIF(c_mediumblob,  c_datetime3),
-  NULLIF(c_mediumblob,  c_timestamp3),
-  NULLIF(c_mediumblob,  c_date),
-  NULLIF(c_mediumblob,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_longblob,  1),
-  NULLIF(c_longblob,  c_smallint),
-  NULLIF(c_longblob,  c_tinyint),
-  NULLIF(c_longblob,  c_int),
-  NULLIF(c_longblob,  c_bigint),
-  NULLIF(c_longblob,  c_float),
-  NULLIF(c_longblob,  c_double),
-  NULLIF(c_longblob,  c_decimal103),
-  NULLIF(c_longblob,  c_varchar10),
-  NULLIF(c_longblob,  c_text),
-  NULLIF(c_longblob,  c_blob),
-  NULLIF(c_longblob,  c_enum),
-  NULLIF(c_longblob,  c_datetime3),
-  NULLIF(c_longblob,  c_timestamp3),
-  NULLIF(c_longblob,  c_date),
-  NULLIF(c_longblob,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-
-# QQ: this should probably create a ENUM column instead of VARCHAR(4)
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_enum,  1),
-  NULLIF(c_enum,  c_smallint),
-  NULLIF(c_enum,  c_tinyint),
-  NULLIF(c_enum,  c_int),
-  NULLIF(c_enum,  c_bigint),
-  NULLIF(c_enum,  c_float),
-  NULLIF(c_enum,  c_double),
-  NULLIF(c_enum,  c_decimal103),
-  NULLIF(c_enum,  c_varchar10),
-  NULLIF(c_enum,  c_text),
-  NULLIF(c_enum,  c_blob),
-  NULLIF(c_enum,  c_enum),
-  NULLIF(c_enum,  c_datetime3),
-  NULLIF(c_enum,  c_timestamp3),
-  NULLIF(c_enum,  c_date),
-  NULLIF(c_enum,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_datetime3,  1),
-  NULLIF(c_datetime3,  c_smallint),
-  NULLIF(c_datetime3,  c_tinyint),
-  NULLIF(c_datetime3,  c_int),
-  NULLIF(c_datetime3,  c_bigint),
-  NULLIF(c_datetime3,  c_float),
-  NULLIF(c_datetime3,  c_double),
-  NULLIF(c_datetime3,  c_decimal103),
-  NULLIF(c_datetime3,  c_varchar10),
-  NULLIF(c_datetime3,  c_text),
-  NULLIF(c_datetime3,  c_blob),
-  NULLIF(c_datetime3,  c_enum),
-  NULLIF(c_datetime3,  c_datetime3),
-  NULLIF(c_datetime3,  c_timestamp3),
-  NULLIF(c_datetime3,  c_date),
-  NULLIF(c_datetime3,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_timestamp3,  1),
-  NULLIF(c_timestamp3,  c_smallint),
-  NULLIF(c_timestamp3,  c_tinyint),
-  NULLIF(c_timestamp3,  c_int),
-  NULLIF(c_timestamp3,  c_bigint),
-  NULLIF(c_timestamp3,  c_float),
-  NULLIF(c_timestamp3,  c_double),
-  NULLIF(c_timestamp3,  c_decimal103),
-  NULLIF(c_timestamp3,  c_varchar10),
-  NULLIF(c_timestamp3,  c_text),
-  NULLIF(c_timestamp3,  c_blob),
-  NULLIF(c_timestamp3,  c_enum),
-  NULLIF(c_timestamp3,  c_datetime3),
-  NULLIF(c_timestamp3,  c_timestamp3),
-  NULLIF(c_timestamp3,  c_date),
-  NULLIF(c_timestamp3,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_date,  1),
-  NULLIF(c_date,  c_smallint),
-  NULLIF(c_date,  c_tinyint),
-  NULLIF(c_date,  c_int),
-  NULLIF(c_date,  c_bigint),
-  NULLIF(c_date,  c_float),
-  NULLIF(c_date,  c_double),
-  NULLIF(c_date,  c_decimal103),
-  NULLIF(c_date,  c_varchar10),
-  NULLIF(c_date,  c_text),
-  NULLIF(c_date,  c_blob),
-  NULLIF(c_date,  c_enum),
-  NULLIF(c_date,  c_datetime3),
-  NULLIF(c_date,  c_timestamp3),
-  NULLIF(c_date,  c_date),
-  NULLIF(c_date,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(c_time,  1),
-  NULLIF(c_time,  c_smallint),
-  NULLIF(c_time,  c_tinyint),
-  NULLIF(c_time,  c_int),
-  NULLIF(c_time,  c_bigint),
-  NULLIF(c_time,  c_float),
-  NULLIF(c_time,  c_double),
-  NULLIF(c_time,  c_decimal103),
-  NULLIF(c_time,  c_varchar10),
-  NULLIF(c_time,  c_text),
-  NULLIF(c_time,  c_blob),
-  NULLIF(c_time,  c_enum),
-  NULLIF(c_time,  c_datetime3),
-  NULLIF(c_time,  c_timestamp3),
-  NULLIF(c_time,  c_date),
-  NULLIF(c_time,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
---echo #
---echo # Checking that the return type depends only on args[0], even if compared to a field
---echo #
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(1,  1),
-  NULLIF(1,  c_smallint),
-  NULLIF(1,  c_tinyint),
-  NULLIF(1,  c_int),
-  NULLIF(1,  c_bigint),
-  NULLIF(1,  c_float),
-  NULLIF(1,  c_double),
-  NULLIF(1,  c_decimal103),
-  NULLIF(1,  c_varchar10),
-  NULLIF(1,  c_text),
-  NULLIF(1,  c_blob),
-  NULLIF(1,  c_enum),
-  NULLIF(1,  c_datetime3),
-  NULLIF(1,  c_timestamp3),
-  NULLIF(1,  c_date),
-  NULLIF(1,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(1.0,  1),
-  NULLIF(1.0,  c_smallint),
-  NULLIF(1.0,  c_tinyint),
-  NULLIF(1.0,  c_int),
-  NULLIF(1.0,  c_bigint),
-  NULLIF(1.0,  c_float),
-  NULLIF(1.0,  c_double),
-  NULLIF(1.0,  c_decimal103),
-  NULLIF(1.0,  c_varchar10),
-  NULLIF(1.0,  c_text),
-  NULLIF(1.0,  c_blob),
-  NULLIF(1.0,  c_enum),
-  NULLIF(1.0,  c_datetime3),
-  NULLIF(1.0,  c_timestamp3),
-  NULLIF(1.0,  c_date),
-  NULLIF(1.0,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(1e0,  1),
-  NULLIF(1e0,  c_smallint),
-  NULLIF(1e0,  c_tinyint),
-  NULLIF(1e0,  c_int),
-  NULLIF(1e0,  c_bigint),
-  NULLIF(1e0,  c_float),
-  NULLIF(1e0,  c_double),
-  NULLIF(1e0,  c_decimal103),
-  NULLIF(1e0,  c_varchar10),
-  NULLIF(1e0,  c_text),
-  NULLIF(1e0,  c_blob),
-  NULLIF(1e0,  c_enum),
-  NULLIF(1e0,  c_datetime3),
-  NULLIF(1e0,  c_timestamp3),
-  NULLIF(1e0,  c_date),
-  NULLIF(1e0,  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF('1',  1),
-  NULLIF('1',  c_smallint),
-  NULLIF('1',  c_tinyint),
-  NULLIF('1',  c_int),
-  NULLIF('1',  c_bigint),
-  NULLIF('1',  c_float),
-  NULLIF('1',  c_double),
-  NULLIF('1',  c_decimal103),
-  NULLIF('1',  c_varchar10),
-  NULLIF('1',  c_text),
-  NULLIF('1',  c_blob),
-  NULLIF('1',  c_enum),
-  NULLIF('1',  c_datetime3),
-  NULLIF('1',  c_timestamp3),
-  NULLIF('1',  c_date),
-  NULLIF('1',  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-CREATE TABLE t2 AS SELECT
-  NULLIF(TIME'10:10:10',  1),
-  NULLIF(TIME'10:10:10',  c_smallint),
-  NULLIF(TIME'10:10:10',  c_tinyint),
-  NULLIF(TIME'10:10:10',  c_int),
-  NULLIF(TIME'10:10:10',  c_bigint),
-  NULLIF(TIME'10:10:10',  c_float),
-  NULLIF(TIME'10:10:10',  c_double),
-  NULLIF(TIME'10:10:10',  c_decimal103),
-  NULLIF(TIME'10:10:10',  c_varchar10),
-  NULLIF(TIME'10:10:10',  c_text),
-  NULLIF(TIME'10:10:10',  c_blob),
-  NULLIF(TIME'10:10:10',  c_enum),
-  NULLIF(TIME'10:10:10',  c_datetime3),
-  NULLIF(TIME'10:10:10',  c_timestamp3),
-  NULLIF(TIME'10:10:10',  c_date),
-  NULLIF(TIME'10:10:10',  c_time)
-FROM t1;
-SHOW CREATE TABLE t2;
-DROP TABLE t2;
-
-DROP TABLE t1;
-
---echo #
---echo # MDEV-7759 NULLIF(x,y) is not equal to CASE WHEN x=y THEN NULL ELSE x END
---echo #
-CREATE TABLE t1 (a YEAR);
-INSERT INTO t1 VALUES (2010),(2020);
-SELECT * FROM t1 WHERE a=2010 AND NULLIF(10.1,a) IS NULL;
-EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=2010 AND NULLIF(10.1,a) IS NULL;
-SELECT * FROM t1 WHERE a=2010 AND CASE WHEN 10.1=a THEN NULL ELSE 10.1 END IS NULL;
-EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=2010 AND CASE WHEN 10.1=a THEN NULL ELSE 10.1 END IS NULL;
-DROP TABLE t1;
-
---echo # Two warnings expected
-SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
-CREATE TABLE t1 AS SELECT
-  NULLIF(TIMESTAMP'2001-01-01 00:00:00',1) AS a,
-  CASE WHEN TIMESTAMP'2001-01-01 00:00:00'=1 THEN NULL
-       ELSE TIMESTAMP'2001-01-01 00:00:00'
-  END AS b;
-DROP TABLE t1;
-
---echo #
---echo # MDEV-8785 Wrong results for EXPLAIN EXTENDED...WHERE NULLIF(latin1_col, _utf8'a' COLLATE utf8_bin) IS NOT NULL
---echo #
-CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET latin1);
-INSERT INTO t1 VALUES ('a'),('A');
-SELECT a, NULLIF(a,_utf8'a' COLLATE utf8_bin) IS NULL FROM t1;
-SELECT CHARSET(NULLIF(a,_utf8'a' COLLATE utf8_bin)) FROM t1;
-EXPLAIN EXTENDED SELECT NULLIF(a,_utf8'a' COLLATE utf8_bin) IS NULL AS expr FROM t1;
-DROP TABLE t1;
-
-
---echo #
---echo # MDEV-8740 Wrong result for SELECT..WHERE year_field=10 AND NULLIF(year_field,2011.1)='2011'
---echo #
-CREATE TABLE t1 (a YEAR);
-INSERT INTO t1 VALUES (2010),(2011);
-SELECT a=10 AND NULLIF(a,2011.1)='2011' AS cond FROM t1;
-SELECT * FROM t1 WHERE a=10;
-SELECT * FROM t1 WHERE NULLIF(a,2011.1)='2011';
-SELECT * FROM t1 WHERE a=10 AND NULLIF(a,2011.1)='2011';
-EXPLAIN EXTENDED
-SELECT * FROM t1 WHERE a=10 AND NULLIF(a,2011.1)='2011';
-EXPLAIN EXTENDED
-SELECT * FROM t1 WHERE a=10 AND NULLIF(a,2011.1)=CONCAT('2011',RAND());
-DROP TABLE t1;
-
-
---echo #
---echo # MDEV-8754 Wrong result for SELECT..WHERE year_field=2020 AND NULLIF(year_field,2010)='2020'
---echo #
-CREATE TABLE t1 (a YEAR);
-INSERT INTO t1 VALUES (2010),(2020);
-SELECT * FROM t1 WHERE a=2020;
-SELECT * FROM t1 WHERE NULLIF(a,2010)='2020';
-SELECT * FROM t1 WHERE a=2020 AND NULLIF(a,2010)='2020';
-EXPLAIN EXTENDED
-SELECT * FROM t1 WHERE a=2020 AND NULLIF(a,2010)='2020';
-EXPLAIN EXTENDED
-SELECT * FROM t1 WHERE a=2020 AND NULLIF(a,2010)=CONCAT('2020',RAND());
-DROP TABLE t1;
-
---echo #
---echo # MDEV-9181 (NULLIF(count(table.col)), 0) gives wrong result on 10.1.x
---echo #
-CREATE TABLE t1 (c1 varchar(50) DEFAULT NULL);
-INSERT INTO t1 (c1) VALUES ('hello'), ('hello\r\n'), ('hello'),('hello');
-SELECT NULLIF(COUNT(c1),0) FROM t1;
-SELECT CASE WHEN COUNT(c1)=0 THEN NULL ELSE COUNT(c1) END  FROM t1;
-SELECT NULLIF(COUNT(c1)+0,0) AS c1,NULLIF(CAST(COUNT(c1) AS SIGNED),0) AS c2,NULLIF(CONCAT(COUNT(c1)),0) AS c3 FROM t1;
-SELECT NULLIF(COUNT(DISTINCT c1),0) FROM t1;
-SELECT CASE WHEN COUNT(DISTINCT c1)=0 THEN NULL ELSE COUNT(DISTINCT c1) END  FROM t1;
-DROP TABLE t1;
-
-CREATE TABLE  t1 (
-  id INT NOT NULL,
-  c1 INT DEFAULT NULL
-);
-INSERT INTO t1 VALUES (1,1),(1,2),(2,3),(2,4);
-SELECT NULLIF(COUNT(c1),0) AS c1,NULLIF(COUNT(c1)+0,0) AS c1_wrapped,CASE WHEN COUNT(c1) IS NULL THEN 0 ELSE COUNT(c1) END AS c1_case FROM t1 GROUP BY id;
-DROP TABLE t1;
-
-# Testing with side effects
-
-CREATE TABLE t1 (a INT);
-INSERT INTO t1 VALUES (1),(2),(3);
-SET @a=0;
-SELECT NULLIF(LAST_VALUE(@a:=@a+1,a),0) FROM t1;
-SELECT @a;
-SET @a=0;
-SELECT NULLIF(AVG(a),0), NULLIF(AVG(LAST_VALUE(@a:=@a+1,a)),0) FROM t1;
-SELECT @a;
-
-# There should not be cache in here:
-
-EXPLAIN EXTENDED SELECT NULLIF(a,0) FROM t1;
-
-# But there should be a cache in here:
-EXPLAIN EXTENDED SELECT NULLIF(AVG(a),0) FROM t1;
-
-DROP TABLE t1;
-
-#
-# MDEV-9576 syntax error on view with nullif and count
-#
-create table t1 (col1 varchar(50));
-create view v1 AS select nullif(count(distinct col1),0) from t1;
-show create view v1;
-drop view v1;
-drop table t1;
-
-#
-# MDEV-9637 select nullif(count(col1),0) gives wrong result if in a view
-#
-create table t1 (col1 varchar(50) default null);
-insert into t1 (col1) values ('hello'), ('hello'), ('hello');
-create view v1 as select nullif(count(col1),0) from t1;
-select * from v1;
-select nullif(count(col1),0) from t1;
-drop view v1;
-drop table t1;
-
-#
-# MDEV-9644 Assertion `args[0] == args[2] || thd->stmt_arena->is_stmt_execute()' failed in Item_func_nullif::fix_length_and_dec()
-#
-select nullif((select 1), (select 2));
-create table t1 (f int);
-insert into t1 values (1),(2);
-select nullif( not f, 1 ) from t1;
-drop table t1;
-
-#
-# MDEV-9641 Assertion `args[0] == args[2] || _current_thd()->lex->context_analysis_only' failed in Item_func_nullif::print(String*, enum_query_type)
-#
-set names utf8;
-create table t1 (f1 varchar(10));
-insert into t1 values ('2015-12-31');
---error ER_DATA_OUT_OF_RANGE
-select power( timestamp( nullif( '2002-09-08', f1 ) ), 24 ) from t1;
-drop table t1;
-
-#
-# MDEV-9682 Assertion `0' failed in Item_cache_row::illegal_method_call on 2nd execution of PS with NULLIF
-#
-CREATE TABLE t1 (f1 INT);
-INSERT INTO t1 VALUES (1),(2);
-PREPARE stmt FROM "SELECT * FROM t1 WHERE NULLIF( ( 1, 2 ) IN ( SELECT 3, 4 ), 1 )";
-EXECUTE stmt;
-EXECUTE stmt;
-DROP TABLE t1;
-
-#
-# MDEV-9683 Server crashes in Item::basic_const_item on numerous nested NULLIFs
-#
-CREATE TABLE t1 (i INT);
-INSERT INTO t1 VALUES (1),(2);
-SELECT * FROM t1 WHERE NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(NULLIF(i = ROUND(0), 14), 13), 12), 11), 10), 9), 8), 7), 6), 5), 4), 3), 2), 1);
-DROP TABLE t1;
-
---echo #
---echo # MDEV-10347 mysqld got signal 11
---echo #
-
-CREATE TABLE t1 (f1 VARCHAR(10), f2 VARCHAR(40));
-CREATE TABLE t2 (f3 VARCHAR(20));
-PREPARE stmt FROM "
-  SELECT (
-    SELECT IFNULL(f3,4) FROM t2
-    WHERE IFNULL(NULLIF(f1,''),1)
-  ) AS sq
-  FROM t1
-  GROUP BY f2
-";
-EXECUTE stmt;
-DEALLOCATE PREPARE stmt;
-DROP TABLE t2,t1;
-
---echo #
---echo # MDEV-10236 Where expression with NOT function gives incorrect result
---echo #
-CREATE TABLE t1 (c1 INT);
-INSERT INTO t1 VALUES (1),(2),(3);
-EXPLAIN EXTENDED
-SELECT * FROM t1 WHERE ((c1 IS NOT NULL) >= (NOT TRUE)) IS NOT NULL;
-SELECT * FROM t1 WHERE ((c1 IS NOT NULL) >= (NOT TRUE)) IS NOT NULL;
-DROP TABLE t1;
-
-
---echo #
---echo # End of 10.1 tests
---echo #