Extension:Approved Revs/approved revs files table

mysql> describe approved_revs_files; +++--+-+-+---+ +++--+-+-+---+ +++--+-+-+---+
 * Field             | Type           | Null | Key | Default | Extra |
 * file_title        | varbinary(255) | NO   | PRI | NULL    |       |
 * approved_timestamp | binary(14)    | NO   |     | NULL    |       |
 * approved_sha1     | varbinary(32)  | NO   |     | NULL    |       |