Unrelated to the OP's question, the suggestion above could be more simply rewritten asTG_OP = 'UPDATE' AND NEW.b IS DISTINCT FROM OLD.b
You're right! :) Giuseppe. -- Giuseppe Broccolo - 2ndQuadrant Italy PostgreSQL Training, Services and Support giuseppe.broccolo@xxxxxxxxxxxxxx | www.2ndQuadrant.it -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
