5.3 merge

3 files changed, 53 insertions, 0 deletions

diff --git a/mysql-test/t/distinct.test b/mysql-test/t/distinct.test
index 051499f465b..f1c120a313d 100644
--- a/mysql-test/t/distinct.test
+++ b/mysql-test/t/distinct.test
@@ -658,6 +658,31 @@ select time(f1) from t1 ;
 select distinct time(f1) from t1 ;
 drop table t1;
 
+#
+# MDEV-3875 Wrong result (missing row) on a DISTINCT query with the same subquery in the SELECT list and GROUP BY
+# MySQL Bug#66896 Distinct not distinguishing 0 from NULL when GROUP BY is used
+#
+create table t1(i int, g int); # remove_dup_with_hash_index
+insert into t1 values (null, 1), (0, 2);
+select distinct i from t1 group by g;
+drop table t1;
+
+create table t1(i int, g blob); # remove_dup_with_compare
+insert into t1 values (null, 1), (0, 2);
+select distinct i from t1 group by g;
+drop table t1;
+
+create table t1 (a int) engine=myisam;
+insert into t1 values (0),(7);
+create table t2 (b int) engine=myisam;
+insert into t2 values (7),(0),(3);
+create algorithm=temptable view v as
+select distinct (select max(a) from t1 where alias.b = a) as field1 from t2 as alias group by field1;
+select * from v;
+select distinct (select max(a) from t1 where alias.b = a) as field1 from t2 as alias group by field1;
+drop view v;
+drop table t1, t2;
+
 --echo #
 --echo # Bug #11744875: 4082: integer lengths cause truncation with distinct concat and innodb
 --echo #
diff --git a/mysql-test/t/group_min_max.test b/mysql-test/t/group_min_max.test
index b984acc78ea..19f7cbe40a1 100644
--- a/mysql-test/t/group_min_max.test
+++ b/mysql-test/t/group_min_max.test
@@ -1155,6 +1155,15 @@ ORDER BY min_a;
 
 DROP TABLE t1;
 
+#
+# MDEV-729 lp:998028 - Server crashes on normal shutdown in closefrm after executing a query from MyISAM table
+#
+create table t1 (a int, b varchar(1), key(b,a)) engine=myisam;
+insert t1 values (1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e'),(6,'f'),(7,'g'),(8,'h'),(null,'i');
+select min(a), b from t1 where a=7 or b='z' group by b;
+flush tables;
+drop table t1;
+
 --echo #
 --echo # LP BUG#888456 Wrong result with DISTINCT , ANY , subquery_cache=off , NOT NULL
 --echo #
diff --git a/mysql-test/t/subselect_sj.test b/mysql-test/t/subselect_sj.test
index 4e93e07c1e3..efbd2b00f24 100644
--- a/mysql-test/t/subselect_sj.test
+++ b/mysql-test/t/subselect_sj.test
@@ -2463,6 +2463,25 @@ HAVING t1sum <> 1;
 DROP TABLE t1, t2;
 
 --echo #
+--echo # MDEV-3911: Assertion `fixed == 0' failed in Item_field::fix_fields
+--echo # on 2nd execution of PS with semijoin=on and IN subquery
+--echo #
+
+CREATE TABLE t1 (a INT, b INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (0,4),(8,6);
+						
+CREATE TABLE t2 (c INT, d INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (7,1),(0,7);
+						
+eval PREPARE stmt FROM ' SELECT * FROM t1 WHERE ( a, b ) IN ( SELECT c, d FROM t2 ) ';
+
+execute stmt;
+execute stmt;
+
+deallocate prepare stmt;
+drop table t1,t2;
+
+--echo #
 --echo # MySQL Bug#13340270: assertion table->sort.record_pointers == __null
 --echo #