Merge 5.3->5.5.

mysql-test/r/derived_view.result

@@ -1468,14 +1468,14 @@ WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a  FROM t3 t);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-2	DEPENDENT SUBQUERY	t	ref	PRIMARY,c	c	4	func	2	Using where; Using index
+2	DEPENDENT SUBQUERY	t	eq_ref	PRIMARY,c	PRIMARY	4	func	1	Using where
 EXPLAIN 
 SELECT * FROM t1 , t2
 WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a  FROM (SELECT * FROM t3) t);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-2	DEPENDENT SUBQUERY	t3	ref	PRIMARY,c	c	4	func	2	Using where; Using index
+2	DEPENDENT SUBQUERY	t3	eq_ref	PRIMARY,c	PRIMARY	4	func	1	Using where
 SELECT * FROM t1 , t2
 WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a  FROM (SELECT * FROM t3) t);
 b	a

mysql-test/r/func_group.result

@@ -1845,7 +1845,7 @@ NULL
 EXPLAIN EXTENDED
 SELECT MAX(a) FROM t1 WHERE (1,2) IN (SELECT a,b FROM t2 WHERE b<5) and a<10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	10	func,func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	100.00	
 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:

mysql-test/r/group_min_max.result

@@ -2407,7 +2407,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE 
 a IN (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	8	Using where
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	8	
 1	PRIMARY	t1_outer	ref	a	a	5	<subquery2>.max(b)	2	Using index
 2	MATERIALIZED	t1	range	NULL	a	5	NULL	8	Using index for group-by
 EXPLAIN SELECT 1 FROM t1 AS t1_outer GROUP BY a HAVING 

mysql-test/r/having.result

@@ -573,6 +573,17 @@ f1
 DROP TABLE t1,t2;
 End of 5.1 tests
 #
+# LP bug:938518 HAVING does not reject the result of aggregation
+#
+CREATE TABLE t1 (pk INT PRIMARY KEY, a INT);
+INSERT INTO t1 VALUES (2,7), (4,7), (6,2), (17,0);
+SELECT MIN(t.pk) FROM t1, t1 as t WHERE t1.pk = 1;
+MIN(t.pk)
+NULL
+SELECT MIN(t.pk) FROM t1, t1 as t WHERE t1.pk = 1 HAVING MIN(t.pk) < 10;
+MIN(t.pk)
+drop table t1;
+#
 # LP bug #791761: MAX over an empty join + HAVING
 #
 CREATE TABLE t1 (a int, b int , KEY (b)) ;
@@ -596,3 +607,33 @@ SELECT MAX(t1.b) AS f FROM t1 JOIN t2 ON t2.a != 0
 WHERE (SELECT f3 FROM t3) <> 0 HAVING f <> 6 ;
 f
 DROP TABLE t1,t2,t3;
+#
+# LP bug:806955 HAVING not observed with aggregate +subquery
+#
+CREATE TABLE t1 (f3 int, f10 varchar(1), f11 int, KEY (f10) );
+INSERT INTO t1 VALUES (NULL,'a',0),(8,'b',0);
+CREATE TABLE t2 (f2 int);
+INSERT INTO t2 VALUES (7);
+CREATE TABLE t3 (f3 int);
+INSERT INTO t3 VALUES (0),(8);
+set @save_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='semijoin=off,materialization=off';
+SELECT MIN( t1.f10 ) AS field1
+FROM t1 , t2
+WHERE t2.f2 IN ( SELECT f3 FROM t3 )
+HAVING field1 < 's';
+field1
+explain extended 
+SELECT MIN( t1.f10 ) AS field1
+FROM t1 , t2
+WHERE t2.f2 IN ( SELECT f3 FROM t3 )
+HAVING field1 < 's';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	PRIMARY	t2	system	NULL	NULL	NULL	NULL	1	100.00	
+1	PRIMARY	t1	index	NULL	f10	4	NULL	2	100.00	Using index
+2	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select min(`test`.`t1`.`f10`) AS `field1` from `test`.`t1` where <expr_cache><7>(<in_optimizer>(7,<exists>(select `test`.`t3`.`f3` from `test`.`t3` where (<cache>(7) = `test`.`t3`.`f3`)))) having (<cache>(`field1`) < 's')
+set optimizer_switch=@save_optimizer_switch;
+drop table t1,t2,t3;
+End of 5.2 tests

mysql-test/r/join.result

@@ -1277,6 +1277,55 @@ Handler_read_rnd_next	1
 DROP TABLE t1, t2;
 End of 5.1 tests
 #
+# Bug #43368: STRAIGHT_JOIN DOESN'T WORK FOR NESTED JOINS 
+#
+create table t1(c1 int primary key, c2 char(10)) engine=myisam;
+create table t2(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
+create table t3(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
+create table t4(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
+insert into t1 values(1,'a');
+insert into t2 values(1,'a', 1);
+insert into t3 values(1,'a', 1);
+insert into t3 values(2,'b',2);
+insert into t4 values(1,'a', 1);
+insert into t4 values(2,'a', 2);
+insert into t4 values(3,'a', 3);
+insert into t4 values(4,'a', 4);
+insert into t1 values(2,'b');
+insert into t1 values(3,'c');
+EXPLAIN
+SELECT * 
+FROM t4 JOIN
+(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
+ON t4.ref_t1=t1.c1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t2	system	NULL	NULL	NULL	NULL	1	
+1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	Using where
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	Using where; Using join buffer (flat, BNL join)
+EXPLAIN
+SELECT STRAIGHT_JOIN * 
+FROM t4 JOIN
+(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
+ON t4.ref_t1=t1.c1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	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)
+EXPLAIN
+SELECT * 
+FROM t4 STRAIGHT_JOIN
+(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
+ON t4.ref_t1=t1.c1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	eq_ref	PRIMARY	PRIMARY	4	test.t4.ref_t1	1	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
+drop table t1,t2,t3,t4;
+End of 5.2 tests
+#
 # BUG#724275: Crash in JOIN::optimize in maria-5.3
 #
 create table t1 (a int);

mysql-test/r/join_outer.result

@@ -1905,4 +1905,88 @@ b	b	a	b
 DEALLOCATE PREPARE stmt;
 SET SESSION join_cache_level=default;
 DROP TABLE t1,t2,t3;
+#
+# LP bug #943543: LEFT JOIN converted to JOIN with 
+#                 ORed IS NULL(primary key) in WHERE clause                
+#
+CREATE TABLE t1 (
+a int, b int NOT NULL, pk int NOT NULL,
+PRIMARY KEY (pk), INDEX idx(b)
+);
+INSERT INTO t1 VALUES
+(NULL,1,1), (6,2,2), (5,3,3), (NULL,4,4),
+(1,9,6), (8,5,7), (NULL,8,8), (8,1,5);
+CREATE TABLE t2 (pk int PRIMARY KEY);
+INSERT INTO t2 VALUES (3), (8), (5);
+EXPLAIN EXTENDED
+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;
+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
+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;
+pk
+5
+EXPLAIN EXTENDED
+SELECT t1.pk FROM t2 LEFT 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;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	const	PRIMARY,idx	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 between 5 and 6) and isnull(5)) or 1)) order by 5
+SELECT t1.pk FROM t2 LEFT 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;
+pk
+5
+DROP TABLE t2;
+CREATE TABLE t2 (c int, d int, KEY (c));
+INSERT INTO t2 VALUES
+(3,30), (8,88), (5,50), (8,81),
+(4,40), (9,90), (7,70), (9,90),
+(13,130), (18,188), (15,150), (18,181),
+(14,140), (19,190), (17,170), (19,190);
+INSERT INTO t1 VALUES (8,5,9);
+EXPLAIN EXTENDED
+SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
+WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ref	idx	idx	4	const	2	100.00	Using where
+1	SIMPLE	t2	ref	c	c	5	test.t1.a	2	100.00	
+Warnings:
+Note	1003	select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` join `test`.`t1` where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (`test`.`t1`.`b` = 5)) order by `test`.`t1`.`b`
+SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
+WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+b	c	d
+5	8	88
+5	8	81
+5	8	88
+5	8	81
+EXPLAIN EXTENDED
+SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
+WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ref	PRIMARY,idx	idx	4	const	2	100.00	Using where; Using filesort
+1	SIMPLE	t2	ref	c	c	5	test.t1.a	2	100.00	
+Warnings:
+Note	1003	select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` join `test`.`t1` where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (((`test`.`t1`.`pk` between 5 and 6) and isnull(`test`.`t1`.`b`)) or (`test`.`t1`.`b` = 5))) order by `test`.`t1`.`b`
+SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
+WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+b	c	d
+5	8	88
+5	8	81
+5	8	88
+5	8	81
+DROP TABLE t1,t2;
 SET optimizer_switch=@save_optimizer_switch;

mysql-test/r/join_outer_innodb.result

@@ -40,8 +40,7 @@ WHERE t1.col_int_key BETWEEN 5 AND 6
 AND t1.pk IS NULL OR t1.pk IN (5)
 ORDER BY pk;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	const	PRIMARY,col_int_key	PRIMARY	4	const	1	Using where
-1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.col_int	1	Using index
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
 
 SELECT t1.pk
 FROM t2 LEFT JOIN t1 ON t2.pk = t1.col_int
@@ -60,3 +59,130 @@ WHERE (t1.b NOT BETWEEN 1 AND 7 OR t1.a IS NULL AND t1.b = t2.b) AND t2.b = 4
 GROUP BY 1;
 a
 DROP TABLE t1,t2;
+#
+Bug #59487: WRONG RESULT WITH STRAIGHT_JOIN AND RIGHT JOIN
+#
+CREATE TABLE t1 (
+pk int(11) NOT NULL,
+col_varchar_10_latin1_key varchar(10) DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t1 VALUES (1,'1');
+CREATE TABLE t2 (
+pk int(11) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t2 VALUES (1);
+CREATE TABLE t3 (
+pk int(11) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t3 VALUES (1);
+CREATE TABLE t4 (
+pk int(11) NOT NULL,
+col_int int(11) DEFAULT NULL,
+col_int_key int(11) DEFAULT NULL,
+col_varchar_10_latin1_key varchar(10) DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t4 VALUES (1,1,1,'1');
+CREATE TABLE t5 (
+col_int int(11) DEFAULT NULL,
+col_varchar_10_utf8_key varchar(10) CHARACTER SET utf8 DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t5 VALUES (1,'1');
+CREATE TABLE t6 (
+col_int_key int(11) DEFAULT NULL,
+col_varchar_10_latin1_key varchar(10) DEFAULT NULL,
+pk int(11) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t6 VALUES (1,'1',1);
+SELECT STRAIGHT_JOIN t6a.pk, t2.pk
+FROM t6 AS t6a
+LEFT JOIN
+(
+t2 
+RIGHT JOIN
+(
+(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
+LEFT JOIN
+(t5 JOIN t6 AS t6b 
+ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
+ON t1.pk = t5.col_int
+)
+ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
+AND t5.col_varchar_10_utf8_key = 0
+)
+ON t6a.pk IS TRUE
+WHERE t6b.col_int_key IS TRUE;
+pk	pk
+1	NULL
+EXPLAIN SELECT STRAIGHT_JOIN t6a.pk, t2.pk
+FROM t6 AS t6a
+LEFT JOIN
+(
+t2 
+RIGHT JOIN
+(
+(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
+LEFT JOIN
+(t5 JOIN t6 AS t6b 
+ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
+ON t1.pk = t5.col_int
+)
+ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
+AND t5.col_varchar_10_utf8_key = 0
+)
+ON t6a.pk IS TRUE
+WHERE t6b.col_int_key IS TRUE;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t6a	ALL	NULL	NULL	NULL	NULL	1	Using where
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (flat, BNL join)
+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	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)
+SELECT t6a.pk, t2.pk
+FROM t6 AS t6a
+LEFT JOIN
+(
+t2 
+RIGHT JOIN
+(
+(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
+LEFT JOIN
+(t5 JOIN t6 AS t6b 
+ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
+ON t1.pk = t5.col_int
+)
+ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
+AND t5.col_varchar_10_utf8_key = 0
+)
+ON t6a.pk IS TRUE
+WHERE t6b.col_int_key IS TRUE;
+pk	pk
+1	NULL
+EXPLAIN SELECT t6a.pk, t2.pk
+FROM t6 AS t6a
+LEFT JOIN
+(
+t2 
+RIGHT JOIN
+(
+(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
+LEFT JOIN
+(t5 JOIN t6 AS t6b 
+ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
+ON t1.pk = t5.col_int
+)
+ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
+AND t5.col_varchar_10_utf8_key = 0
+)
+ON t6a.pk IS TRUE
+WHERE t6b.col_int_key IS TRUE;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t6a	ALL	NULL	NULL	NULL	NULL	1	Using where
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (flat, BNL join)
+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)
+drop table t1,t2,t3,t4,t5,t6;

mysql-test/r/join_outer_jcl6.result

@@ -1916,6 +1916,90 @@ b	b	a	b
 DEALLOCATE PREPARE stmt;
 SET SESSION join_cache_level=default;
 DROP TABLE t1,t2,t3;
+#
+# LP bug #943543: LEFT JOIN converted to JOIN with 
+#                 ORed IS NULL(primary key) in WHERE clause                
+#
+CREATE TABLE t1 (
+a int, b int NOT NULL, pk int NOT NULL,
+PRIMARY KEY (pk), INDEX idx(b)
+);
+INSERT INTO t1 VALUES
+(NULL,1,1), (6,2,2), (5,3,3), (NULL,4,4),
+(1,9,6), (8,5,7), (NULL,8,8), (8,1,5);
+CREATE TABLE t2 (pk int PRIMARY KEY);
+INSERT INTO t2 VALUES (3), (8), (5);
+EXPLAIN EXTENDED
+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;
+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
+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;
+pk
+5
+EXPLAIN EXTENDED
+SELECT t1.pk FROM t2 LEFT 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;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	const	PRIMARY,idx	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 between 5 and 6) and isnull(5)) or 1)) order by 5
+SELECT t1.pk FROM t2 LEFT 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;
+pk
+5
+DROP TABLE t2;
+CREATE TABLE t2 (c int, d int, KEY (c));
+INSERT INTO t2 VALUES
+(3,30), (8,88), (5,50), (8,81),
+(4,40), (9,90), (7,70), (9,90),
+(13,130), (18,188), (15,150), (18,181),
+(14,140), (19,190), (17,170), (19,190);
+INSERT INTO t1 VALUES (8,5,9);
+EXPLAIN EXTENDED
+SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
+WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ref	idx	idx	4	const	2	100.00	Using where
+1	SIMPLE	t2	ref	c	c	5	test.t1.a	2	100.00	
+Warnings:
+Note	1003	select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` join `test`.`t1` where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (`test`.`t1`.`b` = 5)) order by `test`.`t1`.`b`
+SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
+WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+b	c	d
+5	8	88
+5	8	81
+5	8	88
+5	8	81
+EXPLAIN EXTENDED
+SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
+WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ref	PRIMARY,idx	idx	4	const	2	100.00	Using where; Using filesort
+1	SIMPLE	t2	ref	c	c	5	test.t1.a	2	100.00	
+Warnings:
+Note	1003	select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` join `test`.`t1` where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (((`test`.`t1`.`pk` between 5 and 6) and isnull(`test`.`t1`.`b`)) or (`test`.`t1`.`b` = 5))) order by `test`.`t1`.`b`
+SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
+WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+b	c	d
+5	8	88
+5	8	81
+5	8	88
+5	8	81
+DROP TABLE t1,t2;
 SET optimizer_switch=@save_optimizer_switch;
 set join_cache_level=default;
 show variables like 'join_cache_level';

mysql-test/r/maria_mrr.result

@@ -390,6 +390,8 @@ col_varchar_1024_latin1_key varchar(1024) DEFAULT NULL,
 PRIMARY KEY (pk),
 KEY col_varchar_1024_latin1_key (col_varchar_1024_latin1_key)
 ) ENGINE=Aria;
+Warnings:
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 INSERT INTO t1 VALUES
 (1,'z'), (2,'abcdefjhjkl'), (3,'in'), (4,'abcdefjhjkl'), (6,'abcdefjhjkl'),
 (11,'zx'), (12,'abcdefjhjm'), (13,'jn'), (14,'abcdefjhjp'), (16,'abcdefjhjr');
@@ -403,7 +405,7 @@ WHERE
 table1.col_varchar_1024_latin1_key = table2.col_varchar_10_latin1 AND table1.pk<>0 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	table2	ALL	NULL	NULL	NULL	NULL	2	Using where
-1	SIMPLE	table1	ref	PRIMARY,col_varchar_1024_latin1_key	col_varchar_1024_latin1_key	1027	test.table2.col_varchar_10_latin1	2	Using index condition(BKA); Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	table1	ref	PRIMARY,col_varchar_1024_latin1_key	col_varchar_1024_latin1_key	1003	test.table2.col_varchar_10_latin1	2	Using where
 SELECT count(*)
 FROM t1 AS table1, t2 AS table2
 WHERE
@@ -425,6 +427,8 @@ f4 varchar(1024) COLLATE utf8_bin,
 f5 varchar(1024) COLLATE latin1_bin, 
 KEY (f5)
 ) ENGINE=Aria TRANSACTIONAL=0 ;
+Warnings:
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 # Fill the table with some data
 SELECT alias2.* , alias1.f2 
 FROM 

mysql-test/r/select.result

@@ -4891,10 +4891,10 @@ SET SESSION join_buffer_size = 2048;
 EXPLAIN
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	12	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (flat, BNL join)
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	1	Using where
-1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	const	1	
+1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	test.t1.f1	1	
 1	SIMPLE	t5	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;

mysql-test/r/select_jcl6.result

@@ -4902,10 +4902,10 @@ SET SESSION join_buffer_size = 2048;
 EXPLAIN
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	12	
-1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (flat, BNL join)
-1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	const	1	Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	1	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	test.t1.f1	1	Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
 1	SIMPLE	t5	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (incremental, BNL join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (incremental, BNL join)
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;

mysql-test/r/select_pkeycache.result

@@ -4891,10 +4891,10 @@ SET SESSION join_buffer_size = 2048;
 EXPLAIN
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	1	
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	12	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (flat, BNL join)
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	1	Using where
-1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	const	1	
+1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	test.t1.f1	1	
 1	SIMPLE	t5	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
 SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;

mysql-test/r/subselect.result

@@ -2973,7 +2973,7 @@ Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cac
 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	10	func,func	1	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'))
@@ -3563,7 +3563,7 @@ 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	23	test.t1.a,test.t1.b	1	
+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);
@@ -3575,7 +3575,7 @@ 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	23	test.t1.a,test.t1.b	1	
+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);
@@ -4524,14 +4524,14 @@ 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	5	const	1	100.00	
+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	5	const	1	100.00	
+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:
@@ -5984,7 +5984,7 @@ 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	5	func	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 
@@ -5997,7 +5997,7 @@ 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	10	func,func	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

mysql-test/r/subselect4.result

@@ -564,7 +564,7 @@ WHERE ( t1.f10 ) IN ( SELECT f11 FROM t2 GROUP BY f11 ));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ref	f3	f3	5	const	0	Using where
 2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
-2	SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	5	func	1	
+2	SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	
 SELECT * FROM t1
 WHERE f3 = (
@@ -579,7 +579,7 @@ WHERE ( f10, f10 ) IN ( SELECT f11, f11 FROM t2 GROUP BY f11 ));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ref	f3	f3	5	const	0	Using where
 2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
-2	SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	10	func,func	1	
+2	SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	8	func,func	1	
 3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	
 SELECT * FROM t1
 WHERE f3 = (
@@ -1129,7 +1129,7 @@ EXPLAIN
 SELECT * FROM (t2 LEFT JOIN t1 ON t1.c1) LEFT JOIN t3 on t3.c1 WHERE 's' IN (SELECT c1 FROM t2);
 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
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	3	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
@@ -1138,7 +1138,7 @@ c1	c1	c1
 EXPLAIN
 SELECT * FROM t4 LEFT JOIN t2 ON t4.c1 WHERE 's' IN (SELECT c1 FROM t2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t4	index	NULL	PRIMARY	3	NULL	2	Using index; Using join buffer (flat, BNL join)
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
@@ -1704,37 +1704,6 @@ AND t2.f2 = t1.f1;
 f1	f2	f1	f2
 drop table t1,t2,t3,t4;
 #
-# LP BUG#806943 Second crash with select_describe with nested subqueries in maria-5.3
-#
-CREATE TABLE t1 ( f4 int) ;
-INSERT INTO t1 VALUES (0),(0);
-CREATE TABLE t2 ( f2 int) ;
-CREATE TABLE t3 ( f1 int NOT NULL );
-CREATE TABLE t4 ( f2 int, f3 int) ;
-INSERT INTO t4 VALUES (8,0),(3,0);
-EXPLAIN SELECT *
-FROM t2, t3
-WHERE t3.f1 = (
-SELECT SUM( f2 )
-FROM t4
-WHERE EXISTS (
-SELECT DISTINCT f4
-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 noticed after reading const tables
-2	SUBQUERY	t4	ALL	NULL	NULL	NULL	NULL	2	
-3	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
-SELECT *
-FROM t2, t3
-WHERE t3.f1 = (
-SELECT SUM( f2 )
-FROM t4
-WHERE EXISTS (
-SELECT DISTINCT f4
-FROM t1));
-f2	f1
-drop table t1, t2, t3, t4;
-#
 # LP BUG#611690 Crash in select_describe() with nested subqueries
 #
 CREATE TABLE t1 (
@@ -2031,6 +2000,20 @@ WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.a < ANY (SELECT t4.a FROM t4) and t3
 c	a	b
 10	7	0
 drop table t2, t3, t4;
+#
+# BUG#934597: Assertion `! is_set()' failed in Diagnostics_area::set_ok_status(THD...
+#
+CREATE TABLE t1 ( a VARCHAR(1) );
+INSERT INTO t1 VALUES ('u'),('k');
+CREATE TABLE t2 AS
+SELECT a AS field1 FROM t1
+WHERE ( SELECT alias1.a
+FROM t1 AS alias1
+) IS NOT NULL;
+ERROR 21000: Subquery returns more than 1 row
+DROP TABLE t2;
+ERROR 42S02: Unknown table 't2'
+DROP TABLE t1;
 set optimizer_switch=@subselect4_tmp;
 SET optimizer_switch= @@global.optimizer_switch;
 set @@tmp_table_size= @@global.tmp_table_size;

mysql-test/r/subselect_mat.result

@@ -1473,7 +1473,7 @@ SET @@optimizer_switch='semijoin=on,materialization=on';
 EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition; Rowid-ordered scan
 SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 pk
@@ -1861,6 +1861,58 @@ WHERE 'condition'='impossible'
 MIN(a)
 NULL
 DROP TABLE t1;
+#
+# BUG#938131: Subquery materialization is not used in CREATE TABLE SELECT
+# 
+CREATE TABLE t1(a int);
+INSERT INTO t1 values(1),(2);
+CREATE TABLE t2(a int);
+INSERT INTO t2 values(1),(2);
+# Should use Materialization:
+EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
+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	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	Using temporary
+flush status;
+CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
+SHOW STATUS LIKE 'Created_tmp_tables';
+Variable_name	Value
+Created_tmp_tables	3
+DROP TABLE t1,t2,t3;
+# 
+# BUG#939009: Crash with aggregate function in IN subquery 
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch='materialization=on,semijoin=on';
+CREATE TABLE t1 (a int, b int);
+INSERT INTO t1 VALUES (7,1), (4,2), (7,7);
+CREATE TABLE t2 ( c INT );
+INSERT INTO t2 VALUES (4), (7), (6);
+EXPLAIN EXTENDED
+SELECT * FROM t1
+WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
+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	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)))
+SELECT * FROM t1
+WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
+a	b
+7	7
+EXPLAIN
+SELECT * FROM t1
+WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+SELECT * FROM t1
+WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
+a	b
+SET optimizer_switch=@save_optimizer_switch;
+DROP TABLE t1,t2;
 # This must be at the end:
 set optimizer_switch=@subselect_sj_mat_tmp;
 set join_cache_level=@save_join_cache_level;
@@ -1983,7 +2035,7 @@ SET @@optimizer_switch='default,semijoin=on,materialization=on';
 EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition
 SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 pk

mysql-test/r/subselect_mat_cost.result

@@ -348,7 +348,7 @@ FROM City LEFT JOIN Country ON (Country = Code and City.Population < 10000))
 AND Language IN ('English','Spanish');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	CountryLanguage	range	Language	Language	30	NULL	72	Using index condition; Using where; Rowid-ordered scan
-2	DEPENDENT SUBQUERY	City	ref	CityName	CityName	35	func	2	Using index condition; Using where
+2	DEPENDENT SUBQUERY	City	ref	CityName	CityName	35	func	1	Using index condition; Using where
 2	DEPENDENT SUBQUERY	Country	eq_ref	PRIMARY	PRIMARY	3	world.City.Country	1	Using where; Using index
 select count(*)
 from CountryLanguage

mysql-test/r/subselect_no_scache.result

@@ -2979,7 +2979,7 @@ Note	1003	select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optim
 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	10	func,func	1	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'))
@@ -3569,7 +3569,7 @@ 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	23	test.t1.a,test.t1.b	1	
+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);
@@ -3581,7 +3581,7 @@ 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	23	test.t1.a,test.t1.b	1	
+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);
@@ -4530,14 +4530,14 @@ 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	5	const	1	100.00	
+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	5	const	1	100.00	
+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:
@@ -5990,7 +5990,7 @@ 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	5	func	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 
@@ -6003,7 +6003,7 @@ 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	10	func,func	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

mysql-test/r/subselect_sj.result

@@ -802,7 +802,7 @@ INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii','iiii','ffff','ffff','ffff','f
 EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 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	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	13	func,func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	11	func,func	1	100.00	
 2	MATERIALIZED	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Rowid-ordered scan
 Warnings:
 Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`pk` > 0))
@@ -1053,8 +1053,8 @@ AND t1.val IN (SELECT t3.val FROM t3
 WHERE  t3.val LIKE 'a%' OR t3.val LIKE 'e%');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	14	func	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	14	func	1	
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	13	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	13	func	1	
 3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	5	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
 SELECT *
@@ -1633,9 +1633,9 @@ select * from t1 A, t1 B
 where A.a = B.a and A.a in (select a from t2 C) and B.a in (select a from t2 D);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	A	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	B	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	C	ALL	NULL	NULL	NULL	NULL	3	
 3	MATERIALIZED	D	ALL	NULL	NULL	NULL	NULL	3	
 drop table t1, t2;
@@ -2333,7 +2333,7 @@ explain
 SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	9	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	13	Using where
 2	MATERIALIZED	t2	ref	b	b	4	test.t3.a	1	Using index
 SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
@@ -2453,7 +2453,7 @@ EXPLAIN
 SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c 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	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
 2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	
 SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);

mysql-test/r/subselect_sj2.result

@@ -180,7 +180,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
 from t2 ot where a in (select a from t1 it);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	ALL	NULL	NULL	NULL	NULL	22	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	it	ALL	NULL	NULL	NULL	NULL	32	
 select 
 a, mid(filler1, 1,10), length(filler1)=length(filler2) 
@@ -248,7 +248,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
 from t2 ot where a in (select a from t1 it);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	ALL	NULL	NULL	NULL	NULL	22	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	it	ALL	NULL	NULL	NULL	NULL	52	
 select 
 a, mid(filler1, 1,10), length(filler1)=length(filler2) 
@@ -289,7 +289,7 @@ from t0 where a in
 (select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	9	func	1	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func	1	Using where
 2	MATERIALIZED	t1	index	a	a	5	NULL	10	Using where; Using index
 2	MATERIALIZED	t2	ref	a	a	5	test.t1.a	1	Using index
 2	MATERIALIZED	t3	ref	a	a	5	test.t1.a	1	Using index
@@ -718,7 +718,7 @@ The following must use loose index scan over t3, key a:
 explain select count(a) from t2 where a in ( SELECT  a FROM t3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	1000	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t3	index	a	a	5	NULL	30000	Using index
 select count(a) from t2 where a in ( SELECT  a FROM t3);
 count(a)
@@ -875,7 +875,7 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
 WHERE t3.b IN (SELECT b FROM t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
 1	PRIMARY	<derived3>	ALL	NULL	NULL	NULL	NULL	2	
 2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	

mysql-test/r/subselect_sj2_jcl6.result

@@ -130,7 +130,7 @@ set max_heap_table_size= @save_max_heap_table_size;
 explain select * from t1 where a in (select b from t2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	index	b	b	5	NULL	20	Using index
 select * from t1;
 a	b
@@ -192,7 +192,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
 from t2 ot where a in (select a from t1 it);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	ALL	NULL	NULL	NULL	NULL	22	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	it	ALL	NULL	NULL	NULL	NULL	32	
 select 
 a, mid(filler1, 1,10), length(filler1)=length(filler2) 
@@ -260,7 +260,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
 from t2 ot where a in (select a from t1 it);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	ALL	NULL	NULL	NULL	NULL	22	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	it	ALL	NULL	NULL	NULL	NULL	52	
 select 
 a, mid(filler1, 1,10), length(filler1)=length(filler2) 
@@ -301,7 +301,7 @@ from t0 where a in
 (select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	9	func	1	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func	1	Using where
 2	MATERIALIZED	t1	index	a	a	5	NULL	10	Using where; Using index
 2	MATERIALIZED	t2	ref	a	a	5	test.t1.a	1	Using index
 2	MATERIALIZED	t3	ref	a	a	5	test.t1.a	1	Using index
@@ -732,7 +732,7 @@ The following must use loose index scan over t3, key a:
 explain select count(a) from t2 where a in ( SELECT  a FROM t3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	1000	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t3	index	a	a	5	NULL	30000	Using index
 select count(a) from t2 where a in ( SELECT  a FROM t3);
 count(a)
@@ -889,7 +889,7 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
 WHERE t3.b IN (SELECT b FROM t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t2	hash_ALL	NULL	#hash#$hj	5	test.t3.a	1	Using where; Using join buffer (flat, BNLH join)
 1	PRIMARY	<derived3>	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (incremental, BNL join)
 2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	
@@ -987,7 +987,7 @@ EXPLAIN
 SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	1	
 SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
 a	b
@@ -996,7 +996,7 @@ EXPLAIN
 SELECT * FROM t1 WHERE b IN (SELECT max(a) FROM t2 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	1	Using where
-1	PRIMARY	<subquery2>	hash_ALL	distinct_key	#hash#distinct_key	5	test.t1.b	1	Using join buffer (flat, BNLH join)
+1	PRIMARY	<subquery2>	hash_ALL	distinct_key	#hash#distinct_key	4	test.t1.b	1	Using join buffer (flat, BNLH join)
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	1	Using temporary
 SELECT * FROM t1 WHERE b IN (SELECT max(a) FROM t2 GROUP BY a);
 a	b

mysql-test/r/subselect_sj2_mat.result

@@ -182,7 +182,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
 from t2 ot where a in (select a from t1 it);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	ALL	NULL	NULL	NULL	NULL	22	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	it	ALL	NULL	NULL	NULL	NULL	32	
 select 
 a, mid(filler1, 1,10), length(filler1)=length(filler2) 
@@ -250,7 +250,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
 from t2 ot where a in (select a from t1 it);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	ALL	NULL	NULL	NULL	NULL	22	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	it	ALL	NULL	NULL	NULL	NULL	52	
 select 
 a, mid(filler1, 1,10), length(filler1)=length(filler2) 
@@ -291,7 +291,7 @@ from t0 where a in
 (select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	9	func	1	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func	1	Using where
 2	MATERIALIZED	t1	index	a	a	5	NULL	10	Using where; Using index
 2	MATERIALIZED	t2	ref	a	a	5	test.t1.a	1	Using index
 2	MATERIALIZED	t3	ref	a	a	5	test.t1.a	1	Using index
@@ -720,7 +720,7 @@ The following must use loose index scan over t3, key a:
 explain select count(a) from t2 where a in ( SELECT  a FROM t3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	1000	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t3	index	a	a	5	NULL	30000	Using index
 select count(a) from t2 where a in ( SELECT  a FROM t3);
 count(a)
@@ -877,7 +877,7 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
 WHERE t3.b IN (SELECT b FROM t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
 1	PRIMARY	<derived3>	ALL	NULL	NULL	NULL	NULL	2	
 2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	

mysql-test/r/subselect_sj_jcl6.result

@@ -815,7 +815,7 @@ INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii','iiii','ffff','ffff','ffff','f
 EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 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	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	13	func,func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	11	func,func	1	100.00	
 2	MATERIALIZED	t2	range	PRIMARY	PRIMARY	4	NULL	2	100.00	Using index condition; Rowid-ordered scan
 Warnings:
 Note	1003	select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`pk` > 0))
@@ -1066,8 +1066,8 @@ AND t1.val IN (SELECT t3.val FROM t3
 WHERE  t3.val LIKE 'a%' OR t3.val LIKE 'e%');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	14	func	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	14	func	1	
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	13	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	13	func	1	
 3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	5	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
 SELECT *
@@ -1646,9 +1646,9 @@ select * from t1 A, t1 B
 where A.a = B.a and A.a in (select a from t2 C) and B.a in (select a from t2 D);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	A	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	B	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	C	ALL	NULL	NULL	NULL	NULL	3	
 3	MATERIALIZED	D	ALL	NULL	NULL	NULL	NULL	3	
 drop table t1, t2;
@@ -2003,7 +2003,7 @@ explain extended
 SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
 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	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 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 (incremental, BNL join)
 2	MATERIALIZED	t4	index	f2	f2	5	NULL	2	100.00	Using index
@@ -2347,7 +2347,7 @@ explain
 SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	9	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	13	Using where
 2	MATERIALIZED	t2	ref	b	b	4	test.t3.a	1	Using index
 SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
@@ -2467,7 +2467,7 @@ EXPLAIN
 SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c 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	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	
 SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);
@@ -2783,7 +2783,7 @@ SELECT * FROM t1 LEFT JOIN t2 ON (c = b)
 WHERE (a, b) IN (SELECT a, b FROM t1 t);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	idx_a	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	10	func,func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
 1	PRIMARY	t2	ref	idx_c	idx_c	4	test.t1.b	2	Using where; Using index
 2	MATERIALIZED	t	ALL	idx_a	NULL	NULL	NULL	3	
 SELECT * FROM t1 LEFT JOIN t2 ON (c = b)
@@ -2798,7 +2798,7 @@ SELECT * FROM t1 LEFT JOIN t3 ON (c = b)
 WHERE (a, b) IN (SELECT a, b FROM t1 t);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	idx_a	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	10	func,func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
 1	PRIMARY	t3	ref	idx_c	idx_c	4	test.t1.b	2	Using where
 2	MATERIALIZED	t	ALL	idx_a	NULL	NULL	NULL	3	
 SELECT * FROM t1 LEFT JOIN t3 ON (c = b)
@@ -2814,7 +2814,7 @@ SELECT * FROM t1 LEFT JOIN t2 ON (c = b)
 WHERE (a, b) IN (SELECT a, b FROM t1 t);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	idx_a	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	10	func,func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
 1	PRIMARY	t2	ref	idx_c	idx_c	4	test.t1.b	2	Using where; Using index
 2	MATERIALIZED	t	ALL	idx_a	NULL	NULL	NULL	3	
 SELECT * FROM t1 LEFT JOIN t2 ON (c = b)
@@ -2829,7 +2829,7 @@ SELECT * FROM t1 LEFT JOIN t3 ON (c = b)
 WHERE (a, b) IN (SELECT a, b FROM t1 t);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	idx_a	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	10	func,func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
 1	PRIMARY	t3	ref	idx_c	idx_c	4	test.t1.b	2	Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
 2	MATERIALIZED	t	ALL	idx_a	NULL	NULL	NULL	3	
 SELECT * FROM t1 LEFT JOIN t3 ON (c = b)

mysql-test/r/subselect_sj_mat.result

@@ -47,7 +47,7 @@ explain extended
 select * from t1 where a1 in (select b1 from t2 where b1 > '0');
 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	9	func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func	1	100.00	
 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`) where ((`test`.`t2`.`b1` > '0'))
@@ -59,7 +59,7 @@ explain extended
 select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1);
 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	9	func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func	1	100.00	
 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`) where ((`test`.`t2`.`b1` > '0'))
@@ -71,7 +71,7 @@ explain extended
 select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2);
 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	18	func,func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
 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`) where ((`test`.`t2`.`b1` > '0'))
@@ -83,7 +83,7 @@ explain extended
 select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1);
 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
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	test.t1.a1,test.t1.a2	1	100.00	
+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`))
@@ -106,7 +106,7 @@ explain extended
 select * from t1i where a1 in (select max(b1) from t2i where b1 > '0' group by b1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1i	index	it1i1,it1i3	#	18	#	3	100.00	#
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	#	9	#	1	100.00	#
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	#	8	#	1	100.00	#
 2	MATERIALIZED	t2i	index	it2i1,it2i3	#	9	#	5	100.00	#
 Warnings:
 Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from  <materialize> (select max(`test`.`t2i`.`b1`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where (`<subquery2>`.`max(b1)` = `test`.`t1i`.`a1`)
@@ -153,7 +153,7 @@ explain extended
 select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
 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
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	test.t1.a1,test.t1.a2	1	100.00	
+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`))
@@ -165,12 +165,12 @@ prepare st1 from "explain select * from t1 where (a1, a2) in (select b1, max(b2)
 execute st1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	test.t1.a1,test.t1.a2	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	test.t1.a1,test.t1.a2	1	
 2	MATERIALIZED	t2i	range	NULL	it2i3	9	NULL	3	Using index for group-by
 execute st1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	test.t1.a1,test.t1.a2	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	test.t1.a1,test.t1.a2	1	
 2	MATERIALIZED	t2i	range	NULL	it2i3	9	NULL	3	Using index for group-by
 prepare st2 from "select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1)";
 execute st2;
@@ -185,7 +185,7 @@ explain extended
 select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
 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
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	test.t1.a1,test.t1.a2	1	100.00	
+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`))
@@ -233,7 +233,7 @@ explain extended
 select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
 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
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	test.t1.a1,test.t1.a2	1	100.00	
+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`))
@@ -245,7 +245,7 @@ explain extended
 select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1i	index	it1i1,it1i2,it1i3	it1i3	18	NULL	3	100.00	Using where; Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	test.t1i.a1,test.t1i.a2	1	100.00	
+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`))
@@ -299,8 +299,8 @@ where (a1, a2) in (select b1, b2 from t2 where b1 >  '0') and
 where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
 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	<subquery3>	eq_ref	distinct_key	distinct_key	18	func,func	1	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	func,func	1	100.00	
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
 3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 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
@@ -341,8 +341,8 @@ b2 in (select c2 from t3 where c2 LIKE '%03')) and
 where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
 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	<subquery5>	eq_ref	distinct_key	distinct_key	18	func,func	1	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	18	func,func	1	100.00	
+1	PRIMARY	<subquery5>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
 5	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 5	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
@@ -367,7 +367,7 @@ b2 in (select c2 from t3 t3b where c2 LIKE '%03')) and
 where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
 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	<subquery5>	eq_ref	distinct_key	distinct_key	18	func,func	1	100.00	
+1	PRIMARY	<subquery5>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
 5	MATERIALIZED	t3c	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 5	MATERIALIZED	t2i	index	it2i1,it2i2,it2i3	it2i3	18	NULL	5	80.00	Using where; Using index; Using join buffer (flat, BNL join)
@@ -436,7 +436,7 @@ where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where
 where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
 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
-1	PRIMARY	<subquery4>	eq_ref	distinct_key	distinct_key	18	func,func	1	100.00	
+1	PRIMARY	<subquery4>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
 4	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 4	MATERIALIZED	t2i	index	it2i1,it2i2,it2i3	it2i3	18	NULL	5	80.00	Using where; Using index; Using join buffer (flat, BNL join)
 2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
@@ -460,7 +460,7 @@ a1 = c1;
 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
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	<subquery4>	eq_ref	distinct_key	distinct_key	18	func,func	1	100.00	
+1	PRIMARY	<subquery4>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
 4	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 4	MATERIALIZED	t2i	index	it2i1,it2i2,it2i3	it2i3	18	NULL	5	80.00	Using where; Using index; Using join buffer (flat, BNL join)
 2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
@@ -645,7 +645,7 @@ from t1_16
 where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0');
 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	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	20	func	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	19	func	1	100.00	Using where
 2	MATERIALIZED	t2_16	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 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`.`b1` > '0') and (`test`.`t1_16`.`a1` = substr(`test`.`t2_16`.`b1`,1,16)))
@@ -675,7 +675,7 @@ from t1_16
 where a1 in (select group_concat(b1) from t2_16 group by b2);
 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	<subquery2>	eq_ref	distinct_key	distinct_key	261	test.t1_16.a1	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	260	test.t1_16.a1	1	100.00	Using where
 2	MATERIALIZED	t2_16	ALL	NULL	NULL	NULL	NULL	3	100.00	Using filesort
 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  <materialize> (select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2`) join `test`.`t1_16` where (`test`.`t1_16`.`a1` = `<subquery2>`.`group_concat(b1)`)
@@ -760,7 +760,7 @@ from t1_512
 where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0');
 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	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	517	func	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	516	func	1	100.00	Using where
 2	MATERIALIZED	t2_512	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 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`.`b1` > '0') and (`test`.`t1_512`.`a1` = substr(`test`.`t2_512`.`b1`,1,512)))
@@ -775,7 +775,7 @@ from t1_512
 where a1 in (select group_concat(b1) from t2_512 group by b2);
 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	<subquery2>	eq_ref	distinct_key	distinct_key	261	test.t1_512.a1	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	260	test.t1_512.a1	1	100.00	Using where
 2	MATERIALIZED	t2_512	ALL	NULL	NULL	NULL	NULL	3	100.00	Using filesort
 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  <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2`) join `test`.`t1_512` where (`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)
@@ -789,7 +789,7 @@ from t1_512
 where a1 in (select group_concat(b1) from t2_512 group by b2);
 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	<subquery2>	eq_ref	distinct_key	distinct_key	261	test.t1_512.a1	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	260	test.t1_512.a1	1	100.00	Using where
 2	MATERIALIZED	t2_512	ALL	NULL	NULL	NULL	NULL	3	100.00	Using filesort
 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  <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2`) join `test`.`t1_512` where (`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)
@@ -870,7 +870,7 @@ from t1_1024
 where a1 in (select group_concat(b1) from t2_1024 group by b2);
 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	<subquery2>	eq_ref	distinct_key	distinct_key	261	test.t1_1024.a1	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	260	test.t1_1024.a1	1	100.00	Using where
 2	MATERIALIZED	t2_1024	ALL	NULL	NULL	NULL	NULL	3	100.00	Using filesort
 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  <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2`) join `test`.`t1_1024` where (`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)
@@ -884,7 +884,7 @@ from t1_1024
 where a1 in (select group_concat(b1) from t2_1024 group by b2);
 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	<subquery2>	eq_ref	distinct_key	distinct_key	261	test.t1_1024.a1	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	260	test.t1_1024.a1	1	100.00	Using where
 2	MATERIALIZED	t2_1024	ALL	NULL	NULL	NULL	NULL	3	100.00	Using filesort
 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  <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2`) join `test`.`t1_1024` where (`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)
@@ -965,7 +965,7 @@ from t1_1025
 where a1 in (select group_concat(b1) from t2_1025 group by b2);
 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	<subquery2>	eq_ref	distinct_key	distinct_key	261	test.t1_1025.a1	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	260	test.t1_1025.a1	1	100.00	Using where
 2	MATERIALIZED	t2_1025	ALL	NULL	NULL	NULL	NULL	3	100.00	Using filesort
 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  <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2`) join `test`.`t1_1025` where (`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)
@@ -979,7 +979,7 @@ from t1_1025
 where a1 in (select group_concat(b1) from t2_1025 group by b2);
 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	<subquery2>	eq_ref	distinct_key	distinct_key	261	test.t1_1025.a1	1	100.00	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	260	test.t1_1025.a1	1	100.00	Using where
 2	MATERIALIZED	t2_1025	ALL	NULL	NULL	NULL	NULL	3	100.00	Using filesort
 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  <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2`) join `test`.`t1_1025` where (`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)
@@ -1001,7 +1001,7 @@ from t1bit
 where (a1, a2) in (select b1, b2 from t2bit);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1bit	ALL	NULL	NULL	NULL	NULL	3	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	10	func,func	1	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	100.00	
 2	MATERIALIZED	t2bit	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
 Note	1003	select conv(`test`.`t1bit`.`a1`,10,2) AS `bin(a1)`,conv(`test`.`t1bit`.`a2`,10,2) AS `bin(a2)` from `test`.`t1bit` semi join (`test`.`t2bit`) where 1
@@ -1187,7 +1187,7 @@ insert into t1 values (5);
 explain select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	5	const	1	
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	
 2	MATERIALIZED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
 select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
 min(a1)
@@ -1236,7 +1236,7 @@ insert into t1 values ('aa', 'aaaa');
 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	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	3	func	1	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	2	func	1	Using where
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	
 select a,b from t1 where b in (select a from t1);
 a	b
@@ -1273,7 +1273,7 @@ GROUP BY t3i
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	5	const	1	
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	const	1	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
 1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	Using temporary
@@ -1510,7 +1510,7 @@ SET @@optimizer_switch='semijoin=on,materialization=on';
 EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition; Rowid-ordered scan
 SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 pk
@@ -1878,7 +1878,7 @@ insert into t2 values
 explain select * from t1 where t1.a in (select a from t2 where t2.a=7 or t2.b<=1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	func	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	ALL	i_a	NULL	NULL	NULL	8	Using where
 select * from t1 where t1.a in (select a from t2 where t2.a=7 or t2.b<=1);
 a	b
@@ -1898,6 +1898,59 @@ WHERE 'condition'='impossible'
 MIN(a)
 NULL
 DROP TABLE t1;
+#
+# BUG#938131: Subquery materialization is not used in CREATE TABLE SELECT
+# 
+CREATE TABLE t1(a int);
+INSERT INTO t1 values(1),(2);
+CREATE TABLE t2(a int);
+INSERT INTO t2 values(1),(2);
+# Should use Materialization:
+EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	test.t1.a	1	
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	Using temporary
+flush status;
+CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
+SHOW STATUS LIKE 'Created_tmp_tables';
+Variable_name	Value
+Created_tmp_tables	2
+DROP TABLE t1,t2,t3;
+# 
+# BUG#939009: Crash with aggregate function in IN subquery 
+#
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch='materialization=on,semijoin=on';
+CREATE TABLE t1 (a int, b int);
+INSERT INTO t1 VALUES (7,1), (4,2), (7,7);
+CREATE TABLE t2 ( c INT );
+INSERT INTO t2 VALUES (4), (7), (6);
+EXPLAIN EXTENDED
+SELECT * FROM t1
+WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
+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	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)))
+SELECT * FROM t1
+WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
+a	b
+7	7
+EXPLAIN
+SELECT * FROM t1
+WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+SELECT * FROM t1
+WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
+a	b
+SET optimizer_switch=@save_optimizer_switch;
+DROP TABLE t1,t2;
 # This must be at the end:
 set optimizer_switch=@subselect_sj_mat_tmp;
 set join_cache_level=@save_join_cache_level;

mysql-test/r/subselect_sj_nonmerged.result

@@ -40,14 +40,14 @@ alter table t3 add primary key(a);
 #   (despite that subquery's join output estimate is 50 rows)
 explain select * from t3 where a in (select max(t2.a) from t1, t2 group by t2.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	5	Using where
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	5	
 1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	8	<subquery2>.max(t2.a)	1	Using where; Using index
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	Using temporary
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	10	Using join buffer (flat, BNL join)
 # Compare to this which really will have 50 record combinations:
 explain select * from t3 where a in (select max(t2.a) from t1, t2 group by t2.b, t1.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	50	Using where
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	50	
 1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	8	<subquery2>.max(t2.a)	1	Using where; Using index
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	Using temporary
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	10	Using join buffer (flat, BNL join)
@@ -57,7 +57,7 @@ SET optimizer_switch='outer_join_with_cache=off';
 explain select * from t3 
 where a in (select max(t2.a) from t1 left join t2 on t1.a=t2.a group by t2.b, t1.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	50	Using where
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	50	
 1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	8	<subquery2>.max(t2.a)	1	Using where; Using index
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	10	Using temporary
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	Using where
@@ -69,7 +69,7 @@ t4.b=t0.a and t4.a in (select max(t2.a) from t1, t2 group by t2.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	
 1	PRIMARY	t4	ALL	a	NULL	NULL	NULL	100	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	5	test.t4.a	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	test.t4.a	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	Using temporary
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	10	Using join buffer (flat, BNL join)
 insert into t4 select 100 + (B.a *100 + A.a), 100 + (B.a*100 + A.a), 'filler' from t4 A, t0 B;
@@ -77,8 +77,8 @@ explain select * from t4 where
 t4.a in (select max(t2.a) from t1, t2 group by t2.b) and 
 t4.b in (select max(t2.a) from t1, t2 group by t2.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	5	Using where
-1	PRIMARY	<subquery3>	ALL	distinct_key	NULL	NULL	NULL	5	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	5	
+1	PRIMARY	<subquery3>	ALL	distinct_key	NULL	NULL	NULL	5	Using join buffer (flat, BNL join)
 1	PRIMARY	t4	ref	a	a	10	<subquery2>.max(t2.a),<subquery3>.max(t2.a)	12	
 3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	Using temporary
 3	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	10	Using join buffer (flat, BNL join)
@@ -114,7 +114,7 @@ insert into t1 select A.a + 10*B.a + 100*C.a from t0 A, t0 B, t0 C;
 # The following must use non-merged SJ-Materialization:
 explain select * from t1 X join t0 Y on X.a < Y.a where X.a in (select max(a) from t0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	1	Using where
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	1	
 1	PRIMARY	X	ref	a	a	5	<subquery2>.max(a)	1	Using index
 1	PRIMARY	Y	ALL	NULL	NULL	NULL	NULL	10	Using where; Using join buffer (flat, BNL join)
 2	MATERIALIZED	t0	ALL	NULL	NULL	NULL	NULL	10	

mysql-test/r/type_year.result

@@ -359,3 +359,20 @@ total_rows	min_value	MAX(c1+0)
 DROP TABLE t1;
 #
 End of 5.1 tests
+create function y2k() returns int deterministic return 2000;
+create table t1 (a year(2), b int);
+insert t1 values (0,2000);
+select a from t1 where a=2000;
+a
+00
+select a from t1 where a=1000+1000;
+a
+00
+select a from t1 where a=(select 2000 from dual where 1);
+a
+select a from t1 where a=y2k();
+a
+select a from t1 where a=b;
+a
+drop table t1;
+drop function y2k;

mysql-test/suite/maria/r/maria.result

@@ -351,14 +351,14 @@ Table	Op	Msg_type	Msg_text
 test.t1	check	status	OK
 drop table t1;
 CREATE TABLE t1 (a varchar(255), b varchar(255), c varchar(255), d varchar(255), e varchar(255), KEY t1 (a, b, c, d, e));
-ERROR 42000: Specified key was too long; max key length is 1208 bytes
+ERROR 42000: Specified key was too long; max key length is 1000 bytes
 CREATE TABLE t1 (a varchar(32000), unique key(a));
-ERROR 42000: Specified key was too long; max key length is 1208 bytes
+ERROR 42000: Specified key was too long; max key length is 1000 bytes
 CREATE TABLE t1 (a varchar(1), b varchar(1), key (a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b));
 ERROR 42000: Too many key parts specified; max 32 parts allowed
 CREATE TABLE t1 (a varchar(255), b varchar(255), c varchar(255), d varchar(255), e varchar(255));
 ALTER TABLE t1 ADD INDEX t1 (a, b, c, d, e);
-ERROR 42000: Specified key was too long; max key length is 1208 bytes
+ERROR 42000: Specified key was too long; max key length is 1000 bytes
 DROP TABLE t1;
 CREATE TABLE t1 (a int not null, b int, c int, key(b), key(c), key(a,b), key(c,a));
 INSERT into t1 values (0,null,0), (0,null,1), (0,null,2), (0,null,3), (1,1,4);
@@ -1565,7 +1565,7 @@ a	b
 drop table t1;
 create table t1 (v varchar(65530), key(v));
 Warnings:
-Warning	1071	Specified key was too long; max key length is 1208 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 drop table if exists t1;
 create table t1 (v varchar(65536));
 Warnings:
@@ -1803,34 +1803,34 @@ t1	CREATE TABLE `t1` (
 drop table t1;
 create table t1 (a varchar(2048), key `a` (a));
 Warnings:
-Warning	1071	Specified key was too long; max key length is 1208 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` varchar(2048) DEFAULT NULL,
-  KEY `a` (`a`(1208))
+  KEY `a` (`a`(1000))
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
 drop table t1;
 create table t1 (a varchar(2048), key `a` (a) key_block_size=1024);
 Warnings:
-Warning	1071	Specified key was too long; max key length is 1208 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` varchar(2048) DEFAULT NULL,
-  KEY `a` (`a`(1208)) KEY_BLOCK_SIZE=8192
+  KEY `a` (`a`(1000)) KEY_BLOCK_SIZE=8192
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
 drop table t1;
 create table t1 (a int not null, b varchar(2048), key (a), key(b)) key_block_size=1024;
 Warnings:
-Warning	1071	Specified key was too long; max key length is 1208 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) NOT NULL,
   `b` varchar(2048) DEFAULT NULL,
   KEY `a` (`a`) KEY_BLOCK_SIZE=8192,
-  KEY `b` (`b`(1208)) KEY_BLOCK_SIZE=8192
+  KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=8192
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=1024
 alter table t1 key_block_size=2048;
 show create table t1;
@@ -1839,7 +1839,7 @@ t1	CREATE TABLE `t1` (
   `a` int(11) NOT NULL,
   `b` varchar(2048) DEFAULT NULL,
   KEY `a` (`a`) KEY_BLOCK_SIZE=8192,
-  KEY `b` (`b`(1208)) KEY_BLOCK_SIZE=8192
+  KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=8192
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=2048
 alter table t1 add c int, add key (c);
 show create table t1;
@@ -1849,7 +1849,7 @@ t1	CREATE TABLE `t1` (
   `b` varchar(2048) DEFAULT NULL,
   `c` int(11) DEFAULT NULL,
   KEY `a` (`a`) KEY_BLOCK_SIZE=8192,
-  KEY `b` (`b`(1208)) KEY_BLOCK_SIZE=8192,
+  KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=8192,
   KEY `c` (`c`) KEY_BLOCK_SIZE=8192
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=2048
 alter table t1 key_block_size=0;
@@ -1862,33 +1862,33 @@ t1	CREATE TABLE `t1` (
   `c` int(11) DEFAULT NULL,
   `d` int(11) DEFAULT NULL,
   KEY `a` (`a`) KEY_BLOCK_SIZE=8192,
-  KEY `b` (`b`(1208)) KEY_BLOCK_SIZE=8192,
+  KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=8192,
   KEY `c` (`c`) KEY_BLOCK_SIZE=8192,
   KEY `d` (`d`)
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
 drop table t1;
 create table t1 (a int not null, b varchar(2048), key (a), key(b)) key_block_size=8192;
 Warnings:
-Warning	1071	Specified key was too long; max key length is 1208 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) NOT NULL,
   `b` varchar(2048) DEFAULT NULL,
   KEY `a` (`a`),
-  KEY `b` (`b`(1208))
+  KEY `b` (`b`(1000))
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=8192
 drop table t1;
 create table t1 (a int not null, b varchar(2048), key (a) key_block_size=1024, key(b)) key_block_size=8192;
 Warnings:
-Warning	1071	Specified key was too long; max key length is 1208 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` int(11) NOT NULL,
   `b` varchar(2048) DEFAULT NULL,
   KEY `a` (`a`),
-  KEY `b` (`b`(1208))
+  KEY `b` (`b`(1000))
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=8192
 drop table t1;
 create table t1 (a int not null, b int, key (a) key_block_size=1024, key(b) key_block_size=8192) key_block_size=16384;
@@ -1911,12 +1911,12 @@ t1	CREATE TABLE `t1` (
 drop table t1;
 create table t1 (a varchar(2048), key `a` (a) key_block_size=1000000000000000000);
 Warnings:
-Warning	1071	Specified key was too long; max key length is 1208 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` varchar(2048) DEFAULT NULL,
-  KEY `a` (`a`(1208)) KEY_BLOCK_SIZE=8192
+  KEY `a` (`a`(1000)) KEY_BLOCK_SIZE=8192
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
 drop table t1;
 create table t1 (a int not null, key `a` (a) key_block_size=1025);

mysql-test/suite/maria/r/maria3.result

@@ -17,12 +17,12 @@ t1	CREATE TABLE `t1` (
 drop table t1;
 create table t1 (a varchar(2048), key `a` (a) key_block_size=1000000000000000000);
 Warnings:
-Warning	1071	Specified key was too long; max key length is 1208 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `a` varchar(2048) DEFAULT NULL,
-  KEY `a` (`a`(1208)) KEY_BLOCK_SIZE=8192
+  KEY `a` (`a`(1000)) KEY_BLOCK_SIZE=8192
 ) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
 drop table t1;
 create table t1 (a int not null, key `a` (a) key_block_size=1025);
@@ -620,6 +620,53 @@ ERROR 23000: Duplicate entry '2' for key 'a'
 insert into t1 values(3);
 insert into t2 values(3);
 drop table t1, t2;
+CREATE TABLE t1 (
+a INT PRIMARY KEY,
+b CHAR(255),
+c VARCHAR(2048),
+d VARCHAR(18990),
+e CHAR(128),
+f CHAR(192)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+INSERT INTO t1 VALUES
+(1,'A','B','C','','D'),
+(2,'Abcdefghi','E','F','','G');
+CREATE TABLE t2 (
+g INT PRIMARY KEY,
+h CHAR(32),
+i CHAR(255),
+j TEXT
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+INSERT INTO t2 VALUES (1,'M','','H'),
+(2,'N','','H');
+SELECT * FROM t1, t2 WHERE a = g ORDER BY b;
+a	b	c	d	e	f	g	h	i	j
+1	A	B	C		D	1	M		H
+2	Abcdefghi	E	F		G	2	N		H
+drop table t1,t2;
+CREATE TABLE t1 ( a VARCHAR(800),KEY(a) )
+ENGINE=Aria DEFAULT CHARACTER SET latin1;
+INSERT INTO t1 VALUES
+(REPEAT('abc ',200)), (REPEAT('def ',200)),
+(REPEAT('ghi ',200)), (REPEAT('jkl ',200));
+INSERT INTO t1 SELECT * FROM t1;
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+ALTER TABLE t1 MODIFY a VARCHAR(800) CHARSET `ucs2`;
+Warnings:
+Warning	1071	Specified key was too long; max key length is 1000 bytes
+Warning	1071	Specified key was too long; max key length is 1000 bytes
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	status	OK
+SHOW CREATE table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` varchar(800) CHARACTER SET ucs2 DEFAULT NULL,
+  KEY `a` (`a`(500))
+) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
+DROP TABLE t1;
 create table t1 (a int) engine=aria;
 lock table t1 write;
 drop table t1;

mysql-test/suite/maria/t/maria3.test

@@ -523,8 +523,58 @@ insert into t2 values(3);
 connection default;
 drop table t1, t2;
 
+#
+# BUG#909635 - MariaDB crashes on a select with long varchar and blob fields
+#
+
+CREATE TABLE t1 (
+  a INT PRIMARY KEY,
+  b CHAR(255),
+  c VARCHAR(2048),
+  d VARCHAR(18990),
+  e CHAR(128),
+  f CHAR(192)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+
+INSERT INTO t1 VALUES
+  (1,'A','B','C','','D'),
+  (2,'Abcdefghi','E','F','','G');
+
+CREATE TABLE t2 (
+  g INT PRIMARY KEY,
+  h CHAR(32),
+  i CHAR(255),
+  j TEXT
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+
+INSERT INTO t2 VALUES (1,'M','','H'),
+  (2,'N','','H');
+
+SELECT * FROM t1, t2 WHERE a = g ORDER BY b;
+drop table t1,t2;
+
 # End of 5.1 tests
 
+#
+# bug#905716: Assertion `page->size <= share->max_index_block_size'
+#
+
+CREATE TABLE t1 ( a VARCHAR(800),KEY(a) )
+  ENGINE=Aria DEFAULT CHARACTER SET latin1;
+INSERT INTO t1 VALUES
+  (REPEAT('abc ',200)), (REPEAT('def ',200)),
+  (REPEAT('ghi ',200)), (REPEAT('jkl ',200));
+INSERT INTO t1 SELECT * FROM t1;
+# check table is not needed to reproduce the problem,
+# but shows that by this time the table appears to be okay.
+CHECK TABLE t1;
+ALTER TABLE t1 MODIFY a VARCHAR(800) CHARSET `ucs2`;
+CHECK TABLE t1;
+SHOW CREATE table t1;
+DROP TABLE t1;
+
+# End of 5.2 tests
+
 create table t1 (a int) engine=aria;
 lock table t1 write;
 drop table t1;

mysql-test/t/having.test

@@ -589,9 +589,17 @@ ORDER BY t1.f1;
 
 DROP TABLE t1,t2;
 
-
 --echo End of 5.1 tests
 
+--echo #
+--echo # LP bug:938518 HAVING does not reject the result of aggregation
+--echo #
+CREATE TABLE t1 (pk INT PRIMARY KEY, a INT);
+INSERT INTO t1 VALUES (2,7), (4,7), (6,2), (17,0);
+SELECT MIN(t.pk) FROM t1, t1 as t WHERE t1.pk = 1;
+SELECT MIN(t.pk) FROM t1, t1 as t WHERE t1.pk = 1 HAVING MIN(t.pk) < 10;
+drop table t1;
+
 --echo #
 --echo # LP bug #791761: MAX over an empty join + HAVING
 --echo #
@@ -616,3 +624,36 @@ SELECT MAX(t1.b) AS f FROM t1 JOIN t2 ON t2.a != 0
   WHERE (SELECT f3 FROM t3) <> 0 HAVING f <> 6 ;
 
 DROP TABLE t1,t2,t3;
+
+--echo #
+--echo # LP bug:806955 HAVING not observed with aggregate +subquery
+--echo #
+
+CREATE TABLE t1 (f3 int, f10 varchar(1), f11 int, KEY (f10) );
+INSERT INTO t1 VALUES (NULL,'a',0),(8,'b',0);
+
+CREATE TABLE t2 (f2 int);
+INSERT INTO t2 VALUES (7);
+
+CREATE TABLE t3 (f3 int);
+INSERT INTO t3 VALUES (0),(8);
+
+set @save_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='semijoin=off,materialization=off';
+
+SELECT MIN( t1.f10 ) AS field1
+FROM t1 , t2
+WHERE t2.f2 IN ( SELECT f3 FROM t3 )
+HAVING field1 < 's';
+
+explain extended 
+SELECT MIN( t1.f10 ) AS field1
+FROM t1 , t2
+WHERE t2.f2 IN ( SELECT f3 FROM t3 )
+HAVING field1 < 's';
+
+set optimizer_switch=@save_optimizer_switch;
+
+drop table t1,t2,t3;
+
+--echo End of 5.2 tests

mysql-test/t/join.test

@@ -941,7 +941,6 @@ SELECT f1 , MIN(f2) FROM v2 GROUP BY f1;
 drop table t1,t2;
 drop view v1,v2;
 
-
 --echo #
 --echo # BUG#47217 Lost optimization caused slowdown & wrong result.
 --echo #
@@ -963,6 +962,46 @@ DROP TABLE t1, t2;
 
 --echo End of 5.1 tests
 
+--echo #
+--echo # Bug #43368: STRAIGHT_JOIN DOESN'T WORK FOR NESTED JOINS 
+--echo #
+
+create table t1(c1 int primary key, c2 char(10)) engine=myisam;
+create table t2(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
+create table t3(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
+create table t4(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
+insert into t1 values(1,'a');
+insert into t2 values(1,'a', 1);
+insert into t3 values(1,'a', 1);
+insert into t3 values(2,'b',2);
+insert into t4 values(1,'a', 1);
+insert into t4 values(2,'a', 2);
+insert into t4 values(3,'a', 3);
+insert into t4 values(4,'a', 4);
+insert into t1 values(2,'b');
+insert into t1 values(3,'c');
+
+EXPLAIN
+SELECT * 
+FROM t4 JOIN
+     (t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
+     ON t4.ref_t1=t1.c1;
+
+EXPLAIN
+SELECT STRAIGHT_JOIN * 
+FROM t4 JOIN
+     (t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
+     ON t4.ref_t1=t1.c1;
+
+EXPLAIN
+SELECT * 
+FROM t4 STRAIGHT_JOIN
+     (t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
+     ON t4.ref_t1=t1.c1;
+
+drop table t1,t2,t3,t4;
+--echo End of 5.2 tests
+
 --echo #
 --echo # BUG#724275: Crash in JOIN::optimize in maria-5.3
 --echo #

mysql-test/t/join_outer.test

@@ -1486,4 +1486,65 @@ SET SESSION join_cache_level=default;
 
 DROP TABLE t1,t2,t3;
 
+--echo #
+--echo # LP bug #943543: LEFT JOIN converted to JOIN with 
+--echo #                 ORed IS NULL(primary key) in WHERE clause                
+--echo #
+
+CREATE TABLE t1 (
+  a int, b int NOT NULL, pk int NOT NULL,
+  PRIMARY KEY (pk), INDEX idx(b)
+);
+INSERT INTO t1 VALUES
+  (NULL,1,1), (6,2,2), (5,3,3), (NULL,4,4),
+  (1,9,6), (8,5,7), (NULL,8,8), (8,1,5);
+
+CREATE TABLE t2 (pk int PRIMARY KEY);
+INSERT INTO t2 VALUES (3), (8), (5);
+
+EXPLAIN EXTENDED
+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;
+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;
+
+EXPLAIN EXTENDED
+SELECT t1.pk FROM t2 LEFT 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;
+SELECT t1.pk FROM t2 LEFT 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;
+
+DROP TABLE t2;
+
+CREATE TABLE t2 (c int, d int, KEY (c));
+INSERT INTO t2 VALUES
+  (3,30), (8,88), (5,50), (8,81),
+  (4,40), (9,90), (7,70), (9,90),
+  (13,130), (18,188), (15,150), (18,181),
+  (14,140), (19,190), (17,170), (19,190);
+
+INSERT INTO t1 VALUES (8,5,9);
+
+EXPLAIN EXTENDED
+SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
+  WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
+  WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+
+EXPLAIN EXTENDED
+SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
+  WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
+  WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
+ORDER BY t1.b;
+
+DROP TABLE t1,t2;
+
 SET optimizer_switch=@save_optimizer_switch;

mysql-test/t/join_outer_innodb.test

@@ -76,3 +76,70 @@ SELECT STRAIGHT_JOIN t1.a FROM t1 RIGHT JOIN t2 ON t1.b = t2.b
 GROUP BY 1;
 
 DROP TABLE t1,t2;
+
+--echo #
+--echo Bug #59487: WRONG RESULT WITH STRAIGHT_JOIN AND RIGHT JOIN
+--echo #
+
+CREATE TABLE t1 (
+  pk int(11) NOT NULL,
+  col_varchar_10_latin1_key varchar(10) DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t1 VALUES (1,'1');
+CREATE TABLE t2 (
+  pk int(11) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t2 VALUES (1);
+CREATE TABLE t3 (
+  pk int(11) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t3 VALUES (1);
+CREATE TABLE t4 (
+  pk int(11) NOT NULL,
+  col_int int(11) DEFAULT NULL,
+  col_int_key int(11) DEFAULT NULL,
+  col_varchar_10_latin1_key varchar(10) DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t4 VALUES (1,1,1,'1');
+CREATE TABLE t5 (
+  col_int int(11) DEFAULT NULL,
+  col_varchar_10_utf8_key varchar(10) CHARACTER SET utf8 DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t5 VALUES (1,'1');
+CREATE TABLE t6 (
+  col_int_key int(11) DEFAULT NULL,
+  col_varchar_10_latin1_key varchar(10) DEFAULT NULL,
+  pk int(11) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+INSERT INTO t6 VALUES (1,'1',1);
+
+# EXPLAIN of query above (t2 is before t5 in plan)
+
+let $rest_of_query=t6a.pk, t2.pk
+FROM t6 AS t6a
+     LEFT JOIN
+     (
+       t2 
+       RIGHT JOIN
+       (
+         (t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
+         LEFT JOIN
+         (t5 JOIN t6 AS t6b 
+          ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
+         ON t1.pk = t5.col_int
+       )
+       ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
+          AND t5.col_varchar_10_utf8_key = 0
+     )
+     ON t6a.pk IS TRUE
+WHERE t6b.col_int_key IS TRUE;
+
+eval SELECT STRAIGHT_JOIN $rest_of_query;
+eval EXPLAIN SELECT STRAIGHT_JOIN $rest_of_query;
+
+# right result (same query, just remove STRAIGHT_JOIN):
+
+eval SELECT $rest_of_query;
+eval EXPLAIN SELECT $rest_of_query;
+
+drop table t1,t2,t3,t4,t5,t6;

mysql-test/t/subselect4.test

@@ -1370,39 +1370,6 @@ WHERE t2.f2 = (SELECT f2 FROM t3
 
 drop table t1,t2,t3,t4;
 
---echo #
---echo # LP BUG#806943 Second crash with select_describe with nested subqueries in maria-5.3
---echo #
-
-CREATE TABLE t1 ( f4 int) ;
-INSERT INTO t1 VALUES (0),(0);
-
-CREATE TABLE t2 ( f2 int) ;
-
-CREATE TABLE t3 ( f1 int NOT NULL );
-
-CREATE TABLE t4 ( f2 int, f3 int) ;
-INSERT INTO t4 VALUES (8,0),(3,0);
-
-EXPLAIN SELECT *
-FROM t2, t3
-WHERE t3.f1 = (
-        SELECT SUM( f2 )
-        FROM t4
-        WHERE EXISTS (
-                SELECT DISTINCT f4
-                FROM t1));
-SELECT *
-FROM t2, t3
-WHERE t3.f1 = (
-        SELECT SUM( f2 )
-        FROM t4
-        WHERE EXISTS (
-                SELECT DISTINCT f4
-                FROM t1));
-
-drop table t1, t2, t3, t4;
-
 --echo #
 --echo # LP BUG#611690 Crash in select_describe() with nested subqueries
 --echo #
@@ -1665,6 +1632,22 @@ WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.a < ANY (SELECT t4.a FROM t4) and t3
 
 drop table t2, t3, t4;
 
+--echo #
+--echo # BUG#934597: Assertion `! is_set()' failed in Diagnostics_area::set_ok_status(THD...
+--echo #
+CREATE TABLE t1 ( a VARCHAR(1) );
+INSERT INTO t1 VALUES ('u'),('k');
+--error ER_SUBQUERY_NO_1_ROW
+CREATE TABLE t2 AS
+ SELECT a AS field1 FROM t1
+ WHERE ( SELECT alias1.a
+         FROM t1 AS alias1
+       ) IS NOT NULL;
+--error ER_BAD_TABLE_ERROR
+DROP TABLE t2;
+DROP TABLE t1;
+
+
 set optimizer_switch=@subselect4_tmp;
 
 SET optimizer_switch= @@global.optimizer_switch;

mysql-test/t/subselect_sj_mat.test

@@ -1559,6 +1559,49 @@ WHERE a IN (
 
 DROP TABLE t1;
 
+--echo #
+--echo # BUG#938131: Subquery materialization is not used in CREATE TABLE SELECT
+--echo # 
+CREATE TABLE t1(a int);
+INSERT INTO t1 values(1),(2);
+CREATE TABLE t2(a int);
+INSERT INTO t2 values(1),(2);
+--echo # Should use Materialization:
+EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
+flush status;
+CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
+SHOW STATUS LIKE 'Created_tmp_tables';
+DROP TABLE t1,t2,t3;
+
+--echo # 
+--echo # BUG#939009: Crash with aggregate function in IN subquery 
+--echo #
+
+SET @save_optimizer_switch=@@optimizer_switch;
+SET optimizer_switch='materialization=on,semijoin=on';
+
+CREATE TABLE t1 (a int, b int);
+INSERT INTO t1 VALUES (7,1), (4,2), (7,7);
+
+CREATE TABLE t2 ( c INT );
+INSERT INTO t2 VALUES (4), (7), (6);
+
+EXPLAIN EXTENDED
+SELECT * FROM t1
+  WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
+SELECT * FROM t1
+  WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
+
+EXPLAIN
+SELECT * FROM t1
+  WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
+SELECT * FROM t1
+  WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
+
+SET optimizer_switch=@save_optimizer_switch;
+
+DROP TABLE t1,t2;
+
 --echo # This must be at the end:
 set optimizer_switch=@subselect_sj_mat_tmp;
 set join_cache_level=@save_join_cache_level;

mysql-test/t/type_year.test

@@ -163,3 +163,20 @@ DROP TABLE t1;
 --echo #
 
 --echo End of 5.1 tests
+#
+# fun with convert_const_to_int
+# in some cases 00 is equal to 2000, in others it is not.
+#
+create function y2k() returns int deterministic return 2000;
+create table t1 (a year(2), b int);
+insert t1 values (0,2000);
+select a from t1 where a=2000;  # constant.
+select a from t1 where a=1000+1000; # still a constant.
+# select a from t1 where a=(select 2000); # even this is a constant
+select a from t1 where a=(select 2000 from dual where 1); # constant, but "expensive"
+select a from t1 where a=y2k(); # constant, but "expensive"
+select a from t1 where a=b; # not a constant
+drop table t1;
+drop function y2k;
+
+

mysys/mf_keycache.c

@@ -5903,6 +5903,10 @@ int init_key_cache(KEY_CACHE *keycache, uint key_cache_block_size,
                         ((PARTITIONED_KEY_CACHE_CB *) keycache_cb)->partitions :
                         0;
   DBUG_ASSERT(partitions <= MAX_KEY_CACHE_PARTITIONS);
+  keycache->key_cache_mem_size=
+    keycache->partitions ?
+    ((PARTITIONED_KEY_CACHE_CB *) keycache_cb)->key_cache_mem_size :
+    ((SIMPLE_KEY_CACHE_CB *) keycache_cb)->key_cache_mem_size;
   if (blocks > 0)
     keycache->can_be_used= 1;
   return blocks;
@@ -5966,6 +5970,11 @@ int resize_key_cache(KEY_CACHE *keycache, uint key_cache_block_size,
           ((PARTITIONED_KEY_CACHE_CB *)(keycache->keycache_cb))->partitions;
     }
 
+    keycache->key_cache_mem_size=
+    keycache->partitions ?
+    ((PARTITIONED_KEY_CACHE_CB *)(keycache->keycache_cb))->key_cache_mem_size :
+    ((SIMPLE_KEY_CACHE_CB *)(keycache->keycache_cb))->key_cache_mem_size;
+
     keycache->can_be_used= (blocks >= 0);
   } 
   return blocks;

sql/field_conv.cc

@@ -117,6 +117,11 @@ static void do_outer_field_to_null_str(Copy_field *copy)
 int
 set_field_to_null(Field *field)
 {
+  if (field->table->null_catch_flags & CHECK_ROW_FOR_NULLS_TO_REJECT)
+  {
+    field->table->null_catch_flags|= REJECT_ROW_DUE_TO_NULL_FIELDS;
+    return -1;
+  }
   if (field->real_maybe_null())
   {
     field->set_null();
@@ -160,6 +165,11 @@ set_field_to_null(Field *field)
 int
 set_field_to_null_with_conversions(Field *field, bool no_conversions)
 {
+  if (field->table->null_catch_flags & CHECK_ROW_FOR_NULLS_TO_REJECT)
+  {
+    field->table->null_catch_flags|= REJECT_ROW_DUE_TO_NULL_FIELDS;
+    return -1;
+  }
   if (field->real_maybe_null())
   {
     field->set_null();

sql/item.h

@@ -1158,7 +1158,6 @@ public:
   virtual bool update_table_bitmaps_processor(uchar *arg) { return 0; }
   virtual bool view_used_tables_processor(uchar *arg) { return 0; }
   virtual bool eval_not_null_tables(uchar *opt_arg) { return 0; }
-  virtual bool clear_sum_processor(uchar *opt_arg) { return 0; }
   virtual bool is_subquery_processor (uchar *opt_arg) { return 0; }
   virtual bool limit_index_condition_pushdown_processor(uchar *opt_arg)
   { 

sql/item_subselect.cc

@@ -4194,6 +4194,11 @@ bool subselect_hash_sj_engine::init(List<Item> *tmp_columns, uint subquery_id)
   memcpy(name, buf, len+1);
 
   result_sink->get_tmp_table_param()->materialized_subquery= true;
+  if (item->substype() == Item_subselect::IN_SUBS && 
+      ((Item_in_subselect*)item)->is_jtbm_merged)
+  {
+    result_sink->get_tmp_table_param()->force_not_null_cols= true;
+  }
   if (result_sink->create_result_table(thd, tmp_columns, TRUE,
                                        tmp_create_options,
 				       name, TRUE, TRUE))

sql/item_sum.h

@@ -547,7 +547,6 @@ public:
   {
     return trace_unsupported_by_check_vcol_func_processor(func_name()); 
   }
-  bool clear_sum_processor(uchar *arg) { clear(); return 0; }
 };
 
 

sql/opt_subselect.cc

@@ -268,8 +268,8 @@ bool is_materialization_applicable(THD *thd, Item_in_subselect *in_subs,
          Subquery !contains {GROUP BY, ORDER BY [LIMIT],
          aggregate functions}) && subquery predicate is not under "NOT IN"))
 
-    (*) The subquery must be part of a SELECT statement. The current
-         condition also excludes multi-table update statements.
+    (*) The subquery must be part of a SELECT or CREATE TABLE ... SELECT statement.
+        The current condition also excludes multi-table update statements.
   A note about prepared statements: we want the if-branch to be taken on
   PREPARE and each EXECUTE. The rewrites are only done once, but we need 
   select_lex->sj_subselects list to be populated for every EXECUTE. 
@@ -278,7 +278,8 @@ bool is_materialization_applicable(THD *thd, Item_in_subselect *in_subs,
   if (optimizer_flag(thd, OPTIMIZER_SWITCH_MATERIALIZATION) &&      // 0
         !child_select->is_part_of_union() &&                          // 1
         parent_unit->first_select()->leaf_tables.elements &&          // 2
-        thd->lex->sql_command == SQLCOM_SELECT &&                     // *
+        (thd->lex->sql_command == SQLCOM_SELECT ||                     // *
+         thd->lex->sql_command == SQLCOM_CREATE_TABLE) &&              // *
         child_select->outer_select()->leaf_tables.elements &&           // 2A
         subquery_types_allow_materialization(in_subs) &&
         (in_subs->is_top_level_item() ||                               //3
@@ -3184,6 +3185,7 @@ bool setup_sj_materialization_part1(JOIN_TAB *sjm_tab)
     sjm->sjm_table_cols.push_back(*p_item);
 
   sjm->sjm_table_param.field_count= subq_select->item_list.elements;
+  sjm->sjm_table_param.force_not_null_cols= TRUE;
 
   if (!(sjm->table= create_tmp_table(thd, &sjm->sjm_table_param, 
                                      sjm->sjm_table_cols, (ORDER*) 0, 

sql/sql_class.cc

@@ -3434,6 +3434,11 @@ int select_materialize_with_stats::send_data(List<Item> &items)
 
   if ((res= select_union::send_data(items)))
     return res;
+  if (table->null_catch_flags & REJECT_ROW_DUE_TO_NULL_FIELDS)
+  {
+    table->null_catch_flags&= ~REJECT_ROW_DUE_TO_NULL_FIELDS;
+    return 0;
+  }
   /* Skip duplicate rows. */
   if (write_err == HA_ERR_FOUND_DUPP_KEY ||
       write_err == HA_ERR_FOUND_DUPP_UNIQUE)
@@ -3475,6 +3480,7 @@ void TMP_TABLE_PARAM::init()
   precomputed_group_by= 0;
   bit_fields_as_long= 0;
   materialized_subquery= 0;
+  force_not_null_cols= 0;
   skip_create_table= 0;
   DBUG_VOID_RETURN;
 }

sql/sql_class.h

@@ -3458,6 +3458,8 @@ public:
   bool schema_table;
   /* TRUE if the temp table is created for subquery materialization. */
   bool materialized_subquery;
+  /* TRUE if all columns of the table are guaranteed to be non-nullable */
+  bool force_not_null_cols;
   /*
     True if GROUP BY and its aggregate functions are already computed
     by a table access method (e.g. by loose index scan). In this case
@@ -3481,7 +3483,8 @@ public:
   TMP_TABLE_PARAM()
     :copy_field(0), group_parts(0),
      group_length(0), group_null_parts(0), convert_blob_length(0),
-    schema_table(0), materialized_subquery(0), precomputed_group_by(0),
+    schema_table(0), materialized_subquery(0), force_not_null_cols(0),
+    precomputed_group_by(0),
     force_copy_fields(0), bit_fields_as_long(0), skip_create_table(0)
   {}
   ~TMP_TABLE_PARAM()

sql/sql_select.cc

@@ -126,7 +126,7 @@ static int return_zero_rows(JOIN *join, select_result *res,
                             List<TABLE_LIST> &tables,
                             List<Item> &fields, bool send_row,
                             ulonglong select_options, const char *info,
-                            Item *having);
+                            Item *having, List<Item> &all_fields);
 static COND *build_equal_items(THD *thd, COND *cond,
                                COND_EQUAL *inherited,
                                List<TABLE_LIST> *join_list,
@@ -2201,6 +2201,15 @@ JOIN::exec()
       !exec_const_cond->val_int())
     zero_result_cause= "Impossible WHERE noticed after reading const tables";
 
+  /* 
+    We've called exec_const_cond->val_int(). This may have caused an error.
+  */
+  if (thd->is_error())
+  {
+    error= thd->is_error();
+    DBUG_VOID_RETURN;
+  }
+
   if (zero_result_cause)
   {
     (void) return_zero_rows(this, result, select_lex->leaf_tables,
@@ -2208,7 +2217,7 @@ JOIN::exec()
 			    send_row_on_empty_set(),
 			    select_options,
 			    zero_result_cause,
-			    having ? having : tmp_having);
+			    having ? having : tmp_having, all_fields);
     DBUG_VOID_RETURN;
   }
 
@@ -3784,15 +3793,18 @@ merge_key_fields(KEY_FIELD *start,KEY_FIELD *new_fields,KEY_FIELD *end,
 	{
 	  /* field = expression OR field IS NULL */
 	  old->level= and_level;
-	  old->optimize= KEY_OPTIMIZE_REF_OR_NULL;
+          if (old->field->maybe_null())
+	  {
+	    old->optimize= KEY_OPTIMIZE_REF_OR_NULL;
+            /* The referred expression can be NULL: */ 
+            old->null_rejecting= 0;
+	  }
 	  /*
             Remember the NOT NULL value unless the value does not depend
             on other tables.
           */
 	  if (!old->val->used_tables() && old->val->is_null())
 	    old->val= new_fields->val;
-          /* The referred expression can be NULL: */ 
-          old->null_rejecting= 0;
 	}
 	else
 	{
@@ -10566,7 +10578,7 @@ ORDER *simple_remove_const(ORDER *order, COND *where)
 static int
 return_zero_rows(JOIN *join, select_result *result, List<TABLE_LIST> &tables,
 		 List<Item> &fields, bool send_row, ulonglong select_options,
-		 const char *info, Item *having)
+		 const char *info, Item *having, List<Item> &all_fields)
 {
   DBUG_ENTER("return_zero_rows");
 
@@ -10596,9 +10608,15 @@ return_zero_rows(JOIN *join, select_result *result, List<TABLE_LIST> &tables,
       if (!table->is_jtbm())
         mark_as_null_row(table->table);		// All fields are NULL
     }
-    if (having &&
-        !having->walk(&Item::clear_sum_processor, FALSE, NULL) &&
-        having->val_int() == 0)
+    List_iterator_fast<Item> it(all_fields);
+    Item *item;
+    /*
+      Inform all items (especially aggregating) to calculate HAVING correctly,
+      also we will need it for sending results.
+    */
+    while ((item= it++))
+      item->no_rows_in_result();
+    if (having && having->val_int() == 0)
       send_row=0;
   }
   if (!(result->send_result_set_metadata(fields,
@@ -10606,13 +10624,7 @@ return_zero_rows(JOIN *join, select_result *result, List<TABLE_LIST> &tables,
   {
     bool send_error= FALSE;
     if (send_row)
-    {
-      List_iterator_fast<Item> it(fields);
-      Item *item;
-      while ((item= it++))
-	item->no_rows_in_result();
       send_error= result->send_data(fields) > 0;
-    }
     if (!send_error)
       result->send_eof();				// Should be safe
   }
@@ -12400,6 +12412,7 @@ simplify_joins(JOIN *join, List<TABLE_LIST> *join_list, COND *conds, bool top,
           tbl->table->maybe_null= FALSE;
         tbl->join_list= table->join_list;
         repl_list.push_back(tbl);
+        tbl->dep_tables|= table->dep_tables;
       }
       li.replace(repl_list);
       /* Need to update the name resolution table chain when flattening joins */
@@ -13819,6 +13832,7 @@ create_tmp_table(THD *thd, TMP_TABLE_PARAM *param, List<Item> &fields,
   table->merge_keys.init();
   table->intersect_keys.init();
   table->keys_in_use_for_query.init();
+  table->no_rows_with_nulls= param->force_not_null_cols;
 
   table->s= share;
   init_tmp_table_share(thd, share, "", 0, tmpname, tmpname);
@@ -13900,6 +13914,11 @@ create_tmp_table(THD *thd, TMP_TABLE_PARAM *param, List<Item> &fields,
           thd->mem_root= mem_root_save;
           arg= sum_item->set_arg(i, thd, new Item_field(new_field));
           thd->mem_root= &table->mem_root;
+          if (param->force_not_null_cols)
+	  {
+            new_field->flags|= NOT_NULL_FLAG;
+            new_field->null_ptr= NULL;
+          }
 	  if (!(new_field->flags & NOT_NULL_FLAG))
           {
 	    null_count++;
@@ -13975,6 +13994,11 @@ create_tmp_table(THD *thd, TMP_TABLE_PARAM *param, List<Item> &fields,
           agg_item->result_field= new_field;
       }
       tmp_from_field++;
+      if (param->force_not_null_cols)
+      {
+        new_field->flags|= NOT_NULL_FLAG;
+        new_field->null_ptr= NULL;
+      }
       reclength+=new_field->pack_length();
       if (!(new_field->flags & NOT_NULL_FLAG))
 	null_count++;

sql/sql_union.cc

@@ -59,9 +59,17 @@ int select_union::send_data(List<Item> &values)
     unit->offset_limit_cnt--;
     return 0;
   }
+  if (table->no_rows_with_nulls)
+    table->null_catch_flags= CHECK_ROW_FOR_NULLS_TO_REJECT;
   fill_record(thd, table->field, values, TRUE, FALSE);
   if (thd->is_error())
     return 1;
+  if (table->no_rows_with_nulls)
+  {
+    table->null_catch_flags&= ~CHECK_ROW_FOR_NULLS_TO_REJECT;
+    if (table->null_catch_flags)
+      return 0;
+  }
 
   if ((write_err= table->file->ha_write_tmp_row(table->record[0])))
   {

sql/table.h

@@ -906,6 +906,9 @@ enum index_hint_type
   INDEX_HINT_FORCE
 };
 
+#define      CHECK_ROW_FOR_NULLS_TO_REJECT   (1 << 0)
+#define      REJECT_ROW_DUE_TO_NULL_FIELDS   (1 << 1)
+
 struct TABLE
 {
   TABLE() {}                               /* Remove gcc warning */
@@ -1054,6 +1057,26 @@ public:
     NULL, including columns declared as "not null" (see maybe_null).
   */
   bool null_row;
+  /*
+    No rows that contain null values can be placed into this table.
+    Currently this flag can be set to true only for a temporary table
+    that used to store the result of materialization of a subquery.
+  */
+  bool no_rows_with_nulls;
+  /*
+    This field can contain two bit flags: 
+      CHECK_ROW_FOR_NULLS_TO_REJECT
+      REJECT_ROW_DUE_TO_NULL_FIELDS
+    The first flag is set for the dynamic contexts where it is prohibited
+    to write any null into the table.
+    The second flag is set only if the first flag is set on.
+    The informs the outer scope that there was an attept to write null
+    into a field of the table in the context where it is prohibited.
+    This flag should be set off as soon as the first flag is set on.
+    Currently these flags are used only the tables tno_rows_with_nulls set
+    to true. 
+  */       
+  uint8 null_catch_flags;
 
   /*
     TODO: Each of the following flags take up 8 bits. They can just as easily

storage/maria/ha_maria.cc

@@ -1017,8 +1017,11 @@ double ha_maria::scan_time()
   splitting algorithms depends on this. (With only one key on a page
   we also can't use any compression, which may make the index file much
   larger)
-  We use HA_MAX_KEY_BUFF as this is a stack restriction imposed by the
-  handler interface.
+  We use HA_MAX_KEY_LENGTH as this is a stack restriction imposed by the
+  handler interface.  If we want to increase this, we have also to
+  increase HA_MARIA_KEY_BUFF and MARIA_MAX_KEY_BUFF as the buffer needs
+  to take be able to store the extra lenght bytes that is part of the stored
+  key.
 
   We also need to reserve place for a record pointer (8) and 3 bytes
   per key segment to store the length of the segment + possible null bytes.
@@ -3022,7 +3025,7 @@ void ha_maria::get_auto_increment(ulonglong offset, ulonglong increment,
 {
   ulonglong nr;
   int error;
-  uchar key[HA_MAX_KEY_LENGTH];
+  uchar key[MARIA_MAX_KEY_BUFF];
 
   if (!table->s->next_number_key_offset)
   {                                             // Autoincrement at key-start

storage/maria/ma_info.c

@@ -31,7 +31,7 @@ MARIA_RECORD_POS maria_position(MARIA_HA *info)
 uint maria_max_key_length()
 {
   uint tmp= (_ma_max_key_length() - 8 - HA_MAX_KEY_SEG*3);
-  return min(HA_MAX_KEY_BUFF, tmp);
+  return min(HA_MAX_KEY_LENGTH, tmp);
 }
 
 /* Get information about the table */

storage/maria/ma_key_recover.c

@@ -1107,7 +1107,7 @@ uint _ma_apply_redo_index(MARIA_HA *info,
       DBUG_PRINT("redo", ("org_page_length: %u  new_page_length: %u",
                           uint2korr(header), uint2korr(header+2)));
       DBUG_ASSERT(uint2korr(header) == page_length);
-      new_page_length= uint2korr(header+2);
+      new_page_length= min(uint2korr(header+2), max_page_size);
       header+= 4;
       break;
     case KEY_OP_MAX_PAGELENGTH:

storage/maria/ma_open.c

@@ -1714,9 +1714,11 @@ my_bool _ma_columndef_write(File file, MARIA_COLUMNDEF *columndef)
 {
   uchar buff[MARIA_COLUMNDEF_SIZE];
   uchar *ptr=buff;
+  uint low_offset=  (uint) (columndef->offset & 0xffff);
+  uint high_offset= (uint) (columndef->offset >> 16);
 
   mi_int2store(ptr,(ulong) columndef->column_nr); ptr+= 2;
-  mi_int2store(ptr,(ulong) columndef->offset);	  ptr+= 2;
+  mi_int2store(ptr, low_offset);		  ptr+= 2;
   mi_int2store(ptr,columndef->type);		  ptr+= 2;
   mi_int2store(ptr,columndef->length);		  ptr+= 2;
   mi_int2store(ptr,columndef->fill_length);	  ptr+= 2;
@@ -1725,12 +1727,14 @@ my_bool _ma_columndef_write(File file, MARIA_COLUMNDEF *columndef)
 
   (*ptr++)= columndef->null_bit;
   (*ptr++)= columndef->empty_bit;
-  ptr[0]= ptr[1]= ptr[2]= ptr[3]= 0;            ptr+= 4;  /* For future */
+  mi_int2store(ptr, high_offset);                 ptr+= 2;
+  ptr[0]= ptr[1]= 0;                              ptr+= 2;  /* For future */
   return mysql_file_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
 }
 
 uchar *_ma_columndef_read(uchar *ptr, MARIA_COLUMNDEF *columndef)
 {
+  uint high_offset;
   columndef->column_nr= mi_uint2korr(ptr);      ptr+= 2;
   columndef->offset= mi_uint2korr(ptr);         ptr+= 2;
   columndef->type=   mi_sint2korr(ptr);		ptr+= 2;
@@ -1740,7 +1744,9 @@ uchar *_ma_columndef_read(uchar *ptr, MARIA_COLUMNDEF *columndef)
   columndef->empty_pos= mi_uint2korr(ptr);	ptr+= 2;
   columndef->null_bit=  (uint8) *ptr++;
   columndef->empty_bit= (uint8) *ptr++;
-  ptr+= 4;
+  high_offset=       mi_uint2korr(ptr);         ptr+= 2;  
+  columndef->offset|= ((ulong) high_offset << 16);
+  ptr+= 2;
   return ptr;
 }
 

storage/maria/ma_search.c

@@ -1379,6 +1379,10 @@ uint _ma_get_binary_pack_key(MARIA_KEY *int_key, uint page_flag, uint nod_flag,
   memcpy(key, from, length + nod_flag);
   *page_pos= from + length + nod_flag;
   
+#ifdef USEFUL_FOR_DEBUGGING
+  DBUG_DUMP("key", int_key->data,
+            (uint) (int_key->data_length + int_key->ref_length));
+#endif
   DBUG_RETURN(int_key->data_length + int_key->ref_length);
 }
 

storage/maria/ma_write.c

@@ -723,6 +723,8 @@ static int w_search(register MARIA_HA *info, uint32 comp_flag, MARIA_KEY *key,
   {
     error= _ma_insert(info, key, &page, keypos, keybuff,
                       father_page, father_keypos, insert_last);
+    if (error < 0)
+      goto err;
     page_mark_changed(info, &page);
     if (_ma_write_keypage(&page, PAGECACHE_LOCK_LEFT_WRITELOCKED,
                           DFLT_INIT_HITS))