"Robert Landsmeer" <r(dot)landsmeer(at)wis(dot)nl> writes:
> http://archives.postgresql.org/pgsql-novice/2006-05/msg00045.php
If you're using PG 8.1, get rid of that ugly and fragile messing with
the system catalogs, and use ALTER TABLE ENABLE/DISABLE TRIGGER instead.
regards, tom lane