Peter,
I suppose a more constructive point would be, where are the other constraint types kept track of?
AFAICT, we're not tracking them in pg_class at all anymore, except that FKs will set relhastrigger=true in the absensce of any other triggers.
The confusion on this particular line is caused by the "see pg_constraint catalog", which covers *all* constraints, whereas relconstrains only counts the CHECK constraints and not other types. That's why I think a small emphasis on CHECK would prevent people from being confused again.
Of course, at this point, we've spent more time discussing the issue than people have been confused by it, probably.
--Josh -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs
