On Fri, Oct 03, 2003 at 02:35:46PM -0700, Josh Berkus wrote:
> Dror,
>
> > I am using 7.4, and had tried NOT EXISTS and didn't see any
> > improvements.
>
> It wouldn't if you're using 7.4, which has improved IN performance immensely.
>
> What happens if you stop using a function and instead use a subselect?
An improvement. Now I'm getting in the 200 msec response time.
And by the way, I tried "not exists" again and it actually runs slower
than "not in."
>
> --
> -Josh Berkus
> Aglio Database Solutions
> San Francisco
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 3: if posting/reading through Usenet, please send an appropriate
> subscribe-nomail command to majordomo@postgresql.org so that your
> message can get through to the mailing list cleanly
--
Dror Matalon
Zapatec Inc
1700 MLK Way
Berkeley, CA 94709
http://www.zapatec.com