mysql> describe swauthor;
+---------------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+---------------+------------------+------+-----+---------+----------------+
| swa_id | int(10) unsigned | NO | PRI | NULL | auto_increment |
| swa_site | int(10) unsigned | NO | MUL | NULL | |
| swa_user_name | varbinary(255) | YES | | NULL | |
| swa_real_name | varbinary(255) | YES | | NULL | |
| swa_uri_part | varbinary(255) | NO | | NULL | |
+---------------+------------------+------+-----+---------+----------------+