Merging upstream version 1:11.4.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/mysql-test/main/subselect_firstmatch.result b/mysql-test/main/subselect_firstmatch.result
new file mode 100644
index 00000000..86a3dd1b
--- /dev/null
+++ b/mysql-test/main/subselect_firstmatch.result
@@ -0,0 +1,30 @@
+#
+# Check that firstmatch works with HASH
+#
+create table t1 (a int, b int);
+insert into t1 select seq, seq from seq_1_to_10;
+create table t2 (a int, b int);
+insert into t2 select A.seq,A.seq from seq_1_to_10 A, seq_1_to_10 B;
+set @save_join_cache_level=@@join_cache_level;
+set join_cache_level=6;
+explain select * from t1 where t1.a in (select t2.a from t2 where t1.b=t2.b);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	10	Using where
+1	PRIMARY	t2	hash_ALL	NULL	#hash#$hj	10	test.t1.a,test.t1.b	100	Using where; FirstMatch(t1); Using join buffer (flat, BNLH join)
+select * from t1 where t1.a in (select t2.a from t2 where t1.b=t2.b);
+a	b
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+10	10
+set @@join_cache_level=@save_join_cache_level;
+drop table t1,t2;
+#
+# End of 11.0 tests
+#