mysql> explain SELECT COUNT(*)
-> FROM `order_order`
-> WHERE `order_order`.`status` != 4
-> AND (`order_order`.`user_id` = 12345 OR `order_order`.`account_number`
-> = 123456);
+----+-------------+-------------+------+-------------------------------------------------------------------------------------+------+---------+------+--------+-------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------------+------+-------------------------------------------------------------------------------------+------+---------+------+--------+-------------+
| 1 | SIMPLE | order_order | ALL | order_order_fbfc09f1,order_order_979d4f1e,order_order_48fb58bb,order_order_309e75c7 | NULL | NULL | NULL | 338275 | Using where |
+----+-------------+-------------+------+-------------------------------------------------------------------------------------+------+---------+------+--------+-------------+
1 row in set (0.16 sec)
I can't get it to use the indexes when I have the "status" clause.
Anyway, you might be right about using the mysql list.
Thanks,
Collin
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