Extension:Echo/echo event table

mysql> describe echo_event; +--+--+--+-+-++ +--+--+--+-+-++ +--+--+--+-+-++ 9 rows in set (0.00 sec)
 * Field               | Type             | Null | Key | Default | Extra          |
 * event_id            | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
 * event_type          | varbinary(64)    | NO   | MUL | NULL    |                |
 * event_variant       | varbinary(64)    | YES  |     | NULL    |                |
 * event_agent_id      | int(10) unsigned | YES  |     | NULL    |                |
 * event_agent_ip      | varbinary(39)    | YES  |     | NULL    |                |
 * event_page_namespace | int(10) unsigned | YES |     | NULL    |                |
 * event_page_title    | varbinary(255)   | YES  |     | NULL    |                |
 * event_extra         | blob             | YES  |     | NULL    |                |
 * event_page_id       | int(10) unsigned | YES  |     | NULL    |                |