mysql> EXPLAIN SELECT *, COUNT(id) As count, GROUP_CONCAT(cre_name ORDER BY id) As credits, GROUP_CONCAT(id ORDER BY id) As cawids -> FROM svr08test -> LEFT JOIN creator ON (creator = cre_id) -> LEFT JOIN superstar ON (name = sup_id) -> GROUP BY name -> ; +----+-------------+-----------+--------+---------------+---------+---------+-------------------------------+------+----------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+-----------+--------+---------------+---------+---------+-------------------------------+------+----------------+ | 1 | SIMPLE | svr08test | ALL | NULL | NULL | NULL | NULL | 12 | Using filesort | | 1 | SIMPLE | creator | eq_ref | PRIMARY | PRIMARY | 2 | cawsws_caws.svr08test.creator | 1 | | | 1 | SIMPLE | superstar | eq_ref | PRIMARY | PRIMARY | 2 | cawsws_caws.svr08test.name | 1 | | +----+-------------+-----------+--------+---------------+---------+---------+-------------------------------+------+----------------+ 3 rows in set (0.01 sec)