Re: Speeding up Aggregates - Mailing list pgsql-performance

From Josh Berkus
Subject Re: Speeding up Aggregates
Date
Msg-id 200310031435.46838.josh@agliodbs.com
Whole thread Raw
In response to Re: Speeding up Aggregates  (Dror Matalon <dror@zapatec.com>)
Responses Re: Speeding up Aggregates
List pgsql-performance
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?

--
-Josh Berkus
 Aglio Database Solutions
 San Francisco


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