Manual:Tag summary table

The tag_summary is used to pull a LIST of tags simply without ugly GROUP_CONCAT that only works on MySQL 4.1+

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 * Field    | Type    | Null | Key | Default | Extra |
 * ts_rc_id | int(11) | YES  | UNI | NULL    |       |
 * ts_log_id | int(11) | YES | UNI | NULL    |       |
 * ts_rev_id | int(11) | YES | UNI | NULL    |       |
 * ts_tags  | blob    | NO   |     | NULL    |       |