Re: ksqo?

On Wed, 22 May 2002 18:03:07 -0400
"Tom Lane" <tgl@sss.pgh.pa.us> wrote:

> Neil Conway <nconway@klamath.dyndns.org> writes:
> > The current KSQO code is currently #ifdef'ed out, and the 'ksqo' GUC
> > variable does nothing. Is there a reason for keeping this code around?
> > (or conversely, what was the original justification for disabling it?)
> 
> I disabled it because I didn't have time to fix it properly when it got
> broken by the 7.1 rewrite of UNION/INTERSECT/EXCEPT.  I've been waiting
> to see whether anyone notices that it's gone ;-).  So far the demand for
> it has been invisible, so it hasn't gotten fixed.  On the other hand
> I'm not quite convinced that it never will get fixed, so I haven't
> applied the coup de grace.

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.

Cheers,

Neil

-- 
Neil Conway <neilconway@rogers.com>
PGP Key ID: DB3C29FC