Extension:Translate/revtag table

mysql> describe revtag;
+-------------+---------------+------+-----+---------+-------+
| Field       | Type          | Null | Key | Default | Extra |
+-------------+---------------+------+-----+---------+-------+
| rt_type     | varbinary(60) | NO   | PRI | NULL    |       |
| rt_page     | int(11)       | NO   | PRI | NULL    |       |
| rt_revision | int(11)       | NO   | PRI | NULL    |       |
| rt_value    | blob          | YES  |     | NULL    |       |
+-------------+---------------+------+-----+---------+-------+