> Well, triggers cannot be used to create writeable views, can they? The documentation says that triggers can be used on views but only for Inserts; not updates or deletes.
http://www.postgresql.org/docs/8.1/interactive/rules-triggers.html Regards, Richard ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
