gistfile1.txt

+----+-------------+-------+--------+------------------------+------------------------+---------+-------------------+------+----------------------------------------------+
| id | select_type | table | type   | possible_keys          | key                    | key_len | ref               | rows | Extra                                        |
+----+-------------+-------+--------+------------------------+------------------------+---------+-------------------+------+----------------------------------------------+
|  1 | SIMPLE      | w     | index  | stats_workout_fbfc09f1 | stats_workout_fbfc09f1 | 4       | NULL              |   32 | Using index; Using temporary; Using filesort |
|  1 | SIMPLE      | pr    | eq_ref | user_id                | user_id                | 4       | athlete.w.user_id |    1 | Using index                                  |
|  1 | SIMPLE      | p     | ref    | workout_id             | workout_id             | 5       | athlete.w.id      |    1 | Using index                                  |
|  1 | SIMPLE      | c     | ALL    | NULL                   | NULL                   | NULL    | NULL              |   20 |                                              |
+----+-------------+-------+--------+------------------------+------------------------+---------+-------------------+------+----------------------------------------------+
4 rows in set (0.00 sec)