mysql> desc xe_session;
+-------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+--------------+------+-----+---------+-------+
| session_key | varchar(255) | NO | PRI | NULL | |
| member_srl | bigint(11) | NO | MUL | NULL | |
| expired | varchar(14) | YES | MUL | NULL | |
| val | longtext | YES | | NULL | |
| ipaddress | varchar(128) | NO | | NULL | |
| last_update | varchar(14) | YES | MUL | NULL | |
| cur_mid | varchar(128) | YES | MUL | NULL | |
+-------------+--------------+------+-----+---------+-------+
7 rows in set (0.00 sec)