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authorSergei Golubchik <sergii@pisem.net>2013-01-08 21:21:28 +0100
committerSergei Golubchik <sergii@pisem.net>2013-01-08 21:21:28 +0100
commit8aaacc9102b3d536cc2682fe429c5023956a6eea (patch)
treed15a04ded0fe66115dbdcdb3ed4ba41d02c86b7c /mysql-test/t/func_gconcat.test
parent78d9fdb134c58ccf792fdec2bb745cb5ff6ec2ec (diff)
downloadmariadb-git-8aaacc9102b3d536cc2682fe429c5023956a6eea.tar.gz
MDEV-3987 uninitialized read in Item_cond::fix_fields leads to crash: select .. where .. in ( select ... )
change Item_func_group_concat to use max_length according to the expected semantics
Diffstat (limited to 'mysql-test/t/func_gconcat.test')
-rw-r--r--mysql-test/t/func_gconcat.test8
1 files changed, 8 insertions, 0 deletions
diff --git a/mysql-test/t/func_gconcat.test b/mysql-test/t/func_gconcat.test
index f84c112d303..936b93b49c9 100644
--- a/mysql-test/t/func_gconcat.test
+++ b/mysql-test/t/func_gconcat.test
@@ -795,3 +795,11 @@ INSERT INTO t2 SELECT GROUP_CONCAT(a), b FROM t1 GROUP BY b;
SET group_concat_max_len = DEFAULT;
SET @@sql_mode = @old_sql_mode;
DROP TABLE t1, t2;
+
+#
+# MDEV-3987 uninitialized read in Item_cond::fix_fields leads to crash: select .. where .. in ( select ... )
+#
+create table t1 (a char(1) character set utf8);
+insert into t1 values ('a'),('b');
+select 1 from t1 where a in (select group_concat(a) from t1);
+drop table t1;