Michael Nolan <htfoot@xxxxxxxxx> writes: > So, a <> operator (either xid,xid or xid,integer) would need to be > implemented using the hash opclass, correct? No, it's unrelated to the opclass. It'd be worth marking it as the negator of the equality operator, but otherwise it'd really be unconnected to anything else. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general