"Andy Kriger" <akriger(at)greaterthanone(dot)com> writes:
> How do you drop an unnamed constraint from a table?
Is this a foreign-key constraint? If so, you have to drop the three
triggers that implement it; see the recipe on the
techdocs.postgresql.org site.
(7.3 will have a more reasonable way to drop FK constraints ...)
regards, tom lane