"Richard Broersma" <richard.broersma@gmail.com> writes:
> I could manually expand the composite type OLD and NEW to enumerate
> each field and make a row wise comparison. However, I was hoping to
> avoid that.
I think IF ROW(NEW.*) <> ROW(OLD.*) will work in recent releases.
Actually you'd better use IF ROW(NEW.*) IS DISTINCT FROM ROW(OLD.*) ...
you really don't want to rely on <> as it will not give the behavior
you want in the presence of null columns.
regards, tom lane
