Re: Speeding up Aggregates

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
>
>
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--
Dror Matalon
Zapatec Inc
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Berkeley, CA 94709
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