diff options
Diffstat (limited to 'mysql-test/r/func_gconcat.result')
| -rw-r--r-- | mysql-test/r/func_gconcat.result | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mysql-test/r/func_gconcat.result b/mysql-test/r/func_gconcat.result index 4dddc35e8a8..d69a340cddb 100644 --- a/mysql-test/r/func_gconcat.result +++ b/mysql-test/r/func_gconcat.result @@ -972,4 +972,21 @@ 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 Extra +1 PRIMARY <derived2> system NULL NULL NULL NULL 1 +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 +2 DERIVED t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort; Distinct +2 DERIVED td ALL NULL NULL NULL NULL 2 Distinct +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; End of 5.0 tests |