+------+-------------+-------+------+---------------+------+---------+------+------+-------------------------------------------------+
| id   | select_type | table | type | possible_keys | key  | key_len | ref  | rows | Extra                                           |
+------+-------------+-------+------+---------------+------+---------+------+------+-------------------------------------------------+
|    1 | SIMPLE      | user  | ALL  | NULL          | NULL | NULL    | NULL | 1284 |                                                 |
|    1 | SIMPLE      | user  | ALL  | NULL          | NULL | NULL    | NULL | 1284 | Using where; Using join buffer (flat, BNL join) |
+------+-------------+-------+------+---------------+------+---------+------+------+-------------------------------------------------+

JOIN
+- Join buffer
|  +- Filter with WHERE
|     +- Table scan
|        rows           1284
|        +- Table
|           table          user
+- Table scan
   rows           1284
   +- Table
      table          user