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MDEV-3987 uninitialized read in Item_cond::fix_fields leads to crash: select .. where .. in ( select ... )

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change Item_func_group_concat to use max_length according to the expected semantics
This commit is contained in:
Sergei Golubchik
2013-01-08 21:21:28 +01:00
parent 78d9fdb134
commit 8aaacc9102
4 changed files with 29 additions and 17 deletions
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5
mysql-test/r/func_gconcat.result
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@@ -1086,3 +1086,8 @@ ERROR HY000: Row 3 was cut by GROUP_CONCAT()
SET group_concat_max_len = DEFAULT;
SET @@sql_mode = @old_sql_mode;
DROP TABLE t1, t2;
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);
1
drop table t1;