diff options
Diffstat (limited to 'mysql-test/r/func_gconcat.result')
| -rw-r--r-- | mysql-test/r/func_gconcat.result | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/mysql-test/r/func_gconcat.result b/mysql-test/r/func_gconcat.result index 3b78851a1b9..766f3b6bfaa 100644 --- a/mysql-test/r/func_gconcat.result +++ b/mysql-test/r/func_gconcat.result @@ -978,4 +978,36 @@ GROUP BY t1.a 1 1 DROP TABLE t1, t2; +CREATE TABLE t1 (f1 INT); +INSERT INTO t1 VALUES (),(); +EXPLAIN EXTENDED SELECT 1 FROM +(SELECT DISTINCT GROUP_CONCAT(td.f1) FROM t1,t1 AS td GROUP BY td.f1) AS d,t1; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <derived2> system NULL NULL NULL NULL 1 100.00 +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort; Distinct +2 DERIVED td ALL NULL NULL NULL NULL 2 100.00 Distinct; Using join buffer +Warnings: +Note 1003 select 1 AS `1` from (select distinct group_concat(`test`.`td`.`f1` separator ',') AS `GROUP_CONCAT(td.f1)` from `test`.`t1` join `test`.`t1` `td` group by `test`.`td`.`f1`) `d` join `test`.`t1` +SELECT 1 FROM +(SELECT DISTINCT GROUP_CONCAT(td.f1) FROM t1,t1 AS td GROUP BY td.f1) AS d,t1; +1 +1 +1 +DROP TABLE t1; +# +# Bug #52397: another crash with explain extended and group_concat +# +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (0), (0); +EXPLAIN EXTENDED SELECT 1 FROM +(SELECT GROUP_CONCAT(t1.a ORDER BY t1.a ASC) FROM +t1 t2, t1 GROUP BY t1.a) AS d; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <derived2> system NULL NULL NULL NULL 1 100.00 +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +Warnings: +Note 1003 select 1 AS `1` from (select group_concat(`test`.`t1`.`a` order by `test`.`t1`.`a` ASC separator ',') AS `GROUP_CONCAT(t1.a ORDER BY t1.a ASC)` from `test`.`t1` `t2` join `test`.`t1` group by `test`.`t1`.`a`) `d` +DROP TABLE t1; End of 5.0 tests |