mirror of
https://github.com/percona/percona-toolkit.git
synced 2025-09-11 21:51:21 +00:00
11 lines
770 B
SQL
11 lines
770 B
SQL
mysql> explain select * from (select * from sakila.film_actor where film_id = 1) as x;
|
|
+----+-------------+------------+------+----------------+----------------+---------+------+------+-------+
|
|
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
|
|
+----+-------------+------------+------+----------------+----------------+---------+------+------+-------+
|
|
| 1 | PRIMARY | <derived2> | ALL | NULL | NULL | NULL | NULL | 10 | |
|
|
| 2 | DERIVED | film_actor | ref | idx_fk_film_id | idx_fk_film_id | 2 | | 10 | |
|
|
+----+-------------+------------+------+----------------+----------------+---------+------+------+-------+
|
|
2 rows in set (0.01 sec)
|
|
|
|
mysql> notee
|