Bug#25504662 FUNC_IN_XXX TESTS FAIL WHEN CHANGING DEFAULT CHARACTER SET

To repeat: ./mtr --mem  --charset-for-testdb=utf8mb4

Fix for
func_in_all
func_in_icp
func_in_icp_mrr
func_in_mrr
func_in_mrr_cost
func_in_none

opt_trace.filesort_pq
opt_trace.filesort_pack
main.filesort_pack

fulltext
fulltext_left_join

Author: Tor Didriksen

mysql-test/include/func_in.inc

@@ -199,6 +199,8 @@ insert into t2 select 'bazbazbaz', 'no' from t1 A, t1 B;
 insert into t2 values ('fon', '1'), ('fop','1'), ('barbaq','1'), 
   ('barbas','1'), ('bazbazbay', '1'),('zz','1');
 
+# Ignore possible changes in key_len for different character sets
+--replace_column 8 13
 explain select * from t2 where a not in('foo','barbar', 'bazbazbaz');
 
 drop table t2;
@@ -393,10 +395,16 @@ select f1 from t1 where f1 in ('a',1);
 select f1, case f1 when 'a' then '+' when 1 then '-' end from t1;
 create index t1f1_idx on t1(f1);
 select f1 from t1 where f1 in ('a',1);
+# Ignore possible changes in key_len for different character sets
+--replace_column 8 2
 explain select f1 from t1 where f1 in ('a',1);
 select f1 from t1 where f1 in ('a','b');
+# Ignore possible changes in key_len for different character sets
+--replace_column 8 2
 explain select f1 from t1 where f1 in ('a','b');
 select f1 from t1 where f1 in (2,1);
+# Ignore possible changes in key_len for different character sets
+--replace_column 8 2
 explain select f1 from t1 where f1 in (2,1);
 create table t2(f2 int, index t2f2(f2));
 insert into t2 values(0),(1),(2);
@@ -474,7 +482,7 @@ CREATE TABLE t1 (
   c_timestamp TIMESTAMP NOT NULL,
   c_time TIME NOT NULL,
   c_year YEAR NOT NULL,
-  c_char CHAR(10) NOT NULL,
+  c_char CHAR(10) character set utf8mb4 NOT NULL,
   INDEX(c_int), INDEX(c_decimal), INDEX(c_float), INDEX(c_bit), INDEX(c_date),
   INDEX(c_datetime), INDEX(c_timestamp), INDEX(c_time), INDEX(c_year),
   INDEX(c_char));

mysql-test/r/filesort_pack.result

@@ -5,7 +5,7 @@ c char(120) NOT NULL default '',
 pad char(60) NOT NULL default '',
 PRIMARY KEY (id),
 KEY k (k)
-) engine=innodb;
+) charset latin1 engine=innodb;
 ANALYZE TABLE t1;
 Table	Op	Msg_type	Msg_text
 test.t1	analyze	status	OK

mysql-test/r/fulltext.result

@@ -1,5 +1,5 @@
 drop table if exists t1,t2,t3;
-CREATE TABLE t1 (a VARCHAR(200), b TEXT, FULLTEXT (a,b));
+CREATE TABLE t1 (a VARCHAR(200), b TEXT, FULLTEXT (a,b)) charset utf8mb4;
 INSERT INTO t1 VALUES('MySQL has now support', 'for full-text search'),
 ('Full-text indexes', 'are called collections'),
 ('Only MyISAM tables','support collections'),
@@ -11,7 +11,7 @@ test.t1	analyze	status	OK
 SHOW INDEX FROM t1;
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Visible
 t1	1	a	1	a	NULL	5	NULL	NULL	YES	FULLTEXT			YES
-t1	1	a	2	b	NULL	5	1	NULL	YES	FULLTEXT			YES
+t1	1	a	2	b	NULL	5	0	NULL	YES	FULLTEXT			YES
 select * from t1 where MATCH(a,b) AGAINST ("collections");
 a	b
 Only MyISAM tables	support collections
@@ -242,14 +242,14 @@ id int(11),
 ticket int(11),
 KEY ti (id),
 KEY tit (ticket)
-);
+) charset utf8mb4;
 INSERT INTO t1 VALUES (2,3),(1,2);
 CREATE TABLE t2 (
 ticket int(11),
 inhalt text,
 KEY tig (ticket),
 fulltext index tix (inhalt)
-);
+) charset utf8mb4;
 INSERT INTO t2 VALUES (1,'foo'),(2,'bar'),(3,'foobar');
 select t1.id FROM t2 as ttxt,t1,t1 as ticket2
 WHERE ticket2.id = ttxt.ticket AND t1.id = ticket2.ticket and
@@ -269,15 +269,15 @@ id
 show keys from t2;
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Visible
 t2	1	tig	1	ticket	A	NULL	NULL	NULL	YES	BTREE			YES
-t2	1	tix	1	inhalt	NULL	NULL	1	NULL	YES	FULLTEXT			YES
+t2	1	tix	1	inhalt	NULL	NULL	0	NULL	YES	FULLTEXT			YES
 show create table t2;
 Table	Create Table
 t2	CREATE TABLE `t2` (
   `ticket` int(11) DEFAULT NULL,
   `inhalt` text,
   KEY `tig` (`ticket`),
   FULLTEXT KEY `tix` (`inhalt`)
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
+) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4
 select * from t2 where MATCH inhalt AGAINST (NULL);
 ticket	inhalt
 select * from t2 where  MATCH inhalt AGAINST ('foobar');
@@ -479,13 +479,13 @@ SELECT a FROM t1 WHERE MATCH a AGAINST('test' IN BOOLEAN MODE);
 a
 test's
 DROP TABLE t1;
-CREATE TABLE t1 (a VARCHAR(10000), FULLTEXT(a));
+CREATE TABLE t1 (a VARCHAR(10000), FULLTEXT(a)) charset utf8mb4;
 SHOW CREATE TABLE t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` varchar(10000) DEFAULT NULL,
   FULLTEXT KEY `a` (`a`)
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
+) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4
 DROP TABLE t1;
 CREATE TABLE t1 (a TEXT, FULLTEXT KEY(a));
 INSERT INTO t1 VALUES('test'),('test1'),('test');

mysql-test/r/fulltext_left_join.result

@@ -1,7 +1,7 @@
 drop table if exists t1, t2;
 CREATE TABLE t1 (
-id           VARCHAR(255) NOT NULL PRIMARY KEY,
-sujet        VARCHAR(255),
+id           VARCHAR(80) NOT NULL PRIMARY KEY,
+sujet        VARCHAR(80),
 motsclefs    TEXT,
 texte        MEDIUMTEXT,
 FULLTEXT(sujet, motsclefs, texte)

mysql-test/r/func_in_all.result

@@ -659,7 +659,7 @@ c_datetime DATETIME NOT NULL,
 c_timestamp TIMESTAMP NOT NULL,
 c_time TIME NOT NULL,
 c_year YEAR NOT NULL,
-c_char CHAR(10) NOT NULL,
+c_char CHAR(10) character set utf8mb4 NOT NULL,
 INDEX(c_int), INDEX(c_decimal), INDEX(c_float), INDEX(c_bit), INDEX(c_date),
 INDEX(c_datetime), INDEX(c_timestamp), INDEX(c_time), INDEX(c_year),
 INDEX(c_char));
@@ -844,19 +844,19 @@ Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_year` in (NULL,NULL))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN ('1', '2', '3');
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	range	c_char	c_char	10	NULL	3	100.00	Using index condition; Using MRR
+1	SIMPLE	t1	NULL	range	c_char	c_char	40	NULL	3	100.00	Using index condition; Using MRR
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` in ('1','2','3'))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, '1', '2', '3');
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	range	c_char	c_char	10	NULL	3	100.00	Using index condition; Using MRR
+1	SIMPLE	t1	NULL	range	c_char	c_char	40	NULL	3	100.00	Using index condition; Using MRR
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` in (NULL,'1','2','3'))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where multiple equal(NULL, `test`.`t1`.`c_char`)
+Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` = NULL)
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, NULL);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table

mysql-test/r/func_in_icp.result

@@ -659,7 +659,7 @@ c_datetime DATETIME NOT NULL,
 c_timestamp TIMESTAMP NOT NULL,
 c_time TIME NOT NULL,
 c_year YEAR NOT NULL,
-c_char CHAR(10) NOT NULL,
+c_char CHAR(10) character set utf8mb4 NOT NULL,
 INDEX(c_int), INDEX(c_decimal), INDEX(c_float), INDEX(c_bit), INDEX(c_date),
 INDEX(c_datetime), INDEX(c_timestamp), INDEX(c_time), INDEX(c_year),
 INDEX(c_char));
@@ -844,19 +844,19 @@ Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_year` in (NULL,NULL))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN ('1', '2', '3');
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	range	c_char	c_char	10	NULL	3	100.00	Using index condition
+1	SIMPLE	t1	NULL	range	c_char	c_char	40	NULL	3	100.00	Using index condition
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` in ('1','2','3'))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, '1', '2', '3');
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	range	c_char	c_char	10	NULL	3	100.00	Using index condition
+1	SIMPLE	t1	NULL	range	c_char	c_char	40	NULL	3	100.00	Using index condition
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` in (NULL,'1','2','3'))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where multiple equal(NULL, `test`.`t1`.`c_char`)
+Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` = NULL)
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, NULL);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table

mysql-test/r/func_in_icp_mrr.result

@@ -659,7 +659,7 @@ c_datetime DATETIME NOT NULL,
 c_timestamp TIMESTAMP NOT NULL,
 c_time TIME NOT NULL,
 c_year YEAR NOT NULL,
-c_char CHAR(10) NOT NULL,
+c_char CHAR(10) character set utf8mb4 NOT NULL,
 INDEX(c_int), INDEX(c_decimal), INDEX(c_float), INDEX(c_bit), INDEX(c_date),
 INDEX(c_datetime), INDEX(c_timestamp), INDEX(c_time), INDEX(c_year),
 INDEX(c_char));
@@ -844,19 +844,19 @@ Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_year` in (NULL,NULL))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN ('1', '2', '3');
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	range	c_char	c_char	10	NULL	3	100.00	Using index condition; Using MRR
+1	SIMPLE	t1	NULL	range	c_char	c_char	40	NULL	3	100.00	Using index condition; Using MRR
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` in ('1','2','3'))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, '1', '2', '3');
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	range	c_char	c_char	10	NULL	3	100.00	Using index condition; Using MRR
+1	SIMPLE	t1	NULL	range	c_char	c_char	40	NULL	3	100.00	Using index condition; Using MRR
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` in (NULL,'1','2','3'))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where multiple equal(NULL, `test`.`t1`.`c_char`)
+Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` = NULL)
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, NULL);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table

mysql-test/r/func_in_mrr.result

@@ -659,7 +659,7 @@ c_datetime DATETIME NOT NULL,
 c_timestamp TIMESTAMP NOT NULL,
 c_time TIME NOT NULL,
 c_year YEAR NOT NULL,
-c_char CHAR(10) NOT NULL,
+c_char CHAR(10) character set utf8mb4 NOT NULL,
 INDEX(c_int), INDEX(c_decimal), INDEX(c_float), INDEX(c_bit), INDEX(c_date),
 INDEX(c_datetime), INDEX(c_timestamp), INDEX(c_time), INDEX(c_year),
 INDEX(c_char));
@@ -844,19 +844,19 @@ Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_year` in (NULL,NULL))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN ('1', '2', '3');
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	range	c_char	c_char	10	NULL	3	100.00	Using where; Using MRR
+1	SIMPLE	t1	NULL	range	c_char	c_char	40	NULL	3	100.00	Using where; Using MRR
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` in ('1','2','3'))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, '1', '2', '3');
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	range	c_char	c_char	10	NULL	3	100.00	Using where; Using MRR
+1	SIMPLE	t1	NULL	range	c_char	c_char	40	NULL	3	100.00	Using where; Using MRR
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` in (NULL,'1','2','3'))
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where multiple equal(NULL, `test`.`t1`.`c_char`)
+Note	1003	/* select#1 */ select `test`.`t1`.`c_int` AS `c_int`,`test`.`t1`.`c_decimal` AS `c_decimal`,`test`.`t1`.`c_float` AS `c_float`,`test`.`t1`.`c_bit` AS `c_bit`,`test`.`t1`.`c_date` AS `c_date`,`test`.`t1`.`c_datetime` AS `c_datetime`,`test`.`t1`.`c_timestamp` AS `c_timestamp`,`test`.`t1`.`c_time` AS `c_time`,`test`.`t1`.`c_year` AS `c_year`,`test`.`t1`.`c_char` AS `c_char` from `test`.`t1` where (`test`.`t1`.`c_char` = NULL)
 EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, NULL);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table