automerge

1 files changed, 28 insertions, 0 deletions

diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index bb5927122a5..c60ac9790c5 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -4383,6 +4383,34 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	C	ALL	NULL	NULL	NULL	NULL	20	100.00	Using where
 DROP TABLE C;
 # End of test for bug#45061.
+#
+# Bug #46749: Segfault in add_key_fields() with outer subquery level 
+#   field references
+#
+CREATE TABLE t1 (
+a int,
+b int,
+UNIQUE (a), KEY (b)
+);
+INSERT INTO t1 VALUES (1,1), (2,1);
+CREATE TABLE st1 like t1;
+INSERT INTO st1 VALUES (1,1), (2,1);
+CREATE TABLE st2 like t1;
+INSERT INTO st2 VALUES (1,1), (2,1);
+EXPLAIN
+SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
+FROM t1 
+WHERE a = 230;
+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	DEPENDENT SUBQUERY	st1	index	NULL	a	5	NULL	2	Using index
+2	DEPENDENT SUBQUERY	st2	index	b	b	5	NULL	2	Using where; Using index; Using join buffer
+SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
+FROM t1 
+WHERE a = 230;
+MAX(b)	(SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
+NULL	0
+DROP TABLE t1, st1, st2;
 End of 5.0 tests.
 CREATE TABLE t1 (a INT, b INT);
 INSERT INTO t1 VALUES (2,22),(1,11),(2,22);