mysql> describe statistics;
+-----------+--------------+------+-----+-------------------+-----------------------------+
| Field     | Type         | Null | Key | Default           | Extra                       |
+-----------+--------------+------+-----+-------------------+-----------------------------+
| id        | int(11)      | NO   | PRI | NULL              | auto_increment              |
| type      | varchar(32)  | NO   |     | NULL              |                             |
| type_id   | varchar(128) | YES  |     | NULL              |                             |
| timestamp | timestamp    | NO   |     | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
| user_id   | mediumint(9) | YES  | MUL | NULL              |                             |
| referer   | varchar(256) | YES  |     | NULL              |                             |
+-----------+--------------+------+-----+-------------------+-----------------------------+
6 rows in set (0.00 sec)