Neil Conway <nconway@klamath.dyndns.org> writes:
> Hmmm... Well, I'll take a look at it, but I'll probably just leave it
> be -- since the optimization might actually return invalid results, it
> doesn't seem like a very valuable thing to have, IMHO.
Yeah, I never cared for the fact that it altered the semantics of the
query, even if only subtly. But I'm hesitant to rip out something that
someone went to the trouble of writing and contributing ...
regards, tom lane