On 18 April 2011 22:06, Tore Halvorsen <[email protected]> wrote:
> Well, refering to the computed value may be nonsensical, but > couldn't it be some sort of query rewrite? So that... > > SELECT x/y AS z FROM tab WHERE y <> 0 AND z > 2 > > ... is a shorthand for > > SELECT x/y AS z FROM tab WHERE y <> 0 AND x/y > 2 > > No big deal, since there are lots of other ways to do this. That's an accurate observation, but has nothing to do w/ what the original poster was looking for, nor does it refute Toms argument against the OPs suggestion. Cheers, Andrej -- Sent via pgsql-general mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
