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percona-toolkit/t/pt-visual-explain/samples/filesort.sql
2011-06-24 16:02:05 -06:00

11 lines
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SQL

mysql> notee
mysql> explain select language_id from sakila.film order by last_update;
+----+-------------+-------+------+---------------+------+---------+------+------+----------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------+------+---------------+------+---------+------+------+----------------+
| 1 | SIMPLE | film | ALL | NULL | NULL | NULL | NULL | 951 | Using filesort |
+----+-------------+-------+------+---------------+------+---------+------+------+----------------+
1 row in set (0.00 sec)
mysql> notee