======Spam Filter Rules: DBDeleteTime======
^Statement  |DBDeleteTime |
^Version  |6.16+ |
^Purpose  |Deletes records from the spam filter database based on their last update time |

The **DBDeleteTime** statement requires a component name, comparator and time value, in the format
  DBDeleteTime <component name> <comparator> <timevalue>

  * The comparator is < = > <= >= or <> (< is the most useful)
  * <timevalue> is something like "5 seconds" or "10 minutes" or "3 weeks" (see PostgreSQL Interval Input - [[http://www.postgresql.org/docs/9.1/static/datatype-datetime.html#DATATYPE-INTERVAL-INPUT]]

Example
  DBDeleteTime subject < "3 months"
  
This will delete all records for the 'subject' component which were last updated earlier than 3 months ago.

The SQL expression is created as 'updatetime <comparator> now() - <timevalue>', so the above statement's query string becomes ''where updatetime < now() - '3 months' ''