Merge jbruehe@bk-internal.mysql.com:/home/bk/mysql-4.1

into mysql.com:/M41/mysql-4.1

2 files changed, 33 insertions, 0 deletions

diff --git a/mysql-test/r/join_outer.result b/mysql-test/r/join_outer.result
index c045aa0d00a..09a55ba2054 100644
--- a/mysql-test/r/join_outer.result
+++ b/mysql-test/r/join_outer.result
@@ -683,6 +683,26 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	
 drop table t1, t2, t3;
 create table t1 (
+a int(11),
+b char(10),
+key (a)
+);
+insert into t1 (a) values (1),(2),(3),(4);
+create table t2 (a int);
+select * from t1 left join t2 on t1.a=t2.a where not (t2.a <=> t1.a);
+a	b	a
+1	NULL	NULL
+2	NULL	NULL
+3	NULL	NULL
+4	NULL	NULL
+select * from t1 left join t2 on t1.a=t2.a having not (t2.a <=> t1.a);
+a	b	a
+1	NULL	NULL
+2	NULL	NULL
+3	NULL	NULL
+4	NULL	NULL
+drop table t1,t2;
+create table t1 (
 match_id tinyint(3) unsigned not null auto_increment,
 home tinyint(3) unsigned default '0',
 unique key match_id (match_id),
diff --git a/mysql-test/t/join_outer.test b/mysql-test/t/join_outer.test
index d177a68e685..8096176a744 100644
--- a/mysql-test/t/join_outer.test
+++ b/mysql-test/t/join_outer.test
@@ -457,6 +457,19 @@ explain select * from t1 left join t2  on  b1 = a1 left join t3  on  c1 = a1  an
 
 drop table t1, t2, t3;
 
+# Test for BUG#8711 '<=>' was considered to be a NULL-rejecting predicate.
+create table t1 (
+  a int(11),
+  b char(10),
+  key (a)
+);
+insert into t1 (a) values (1),(2),(3),(4);
+create table t2 (a int);
+
+select * from t1 left join t2 on t1.a=t2.a where not (t2.a <=> t1.a);
+select * from t1 left join t2 on t1.a=t2.a having not (t2.a <=> t1.a);
+drop table t1,t2;
+
 # Test for BUG#5088
 
 create table t1 (