Re: Comparitive UPDATE speed

From: Andrew Sullivan <andrew(at)libertyrms(dot)info>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Comparitive UPDATE speed
Date: 2002-10-04 16:44:03
Message-ID: 20021004124403.I949@mail.libertyrms.com
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On Fri, Oct 04, 2002 at 08:54:56AM -0700, Josh Berkus wrote:

> Slowly. It takes about 60 seconds to return data. This may be the
> problem. Thoughts? Here's EXPLAIN output:

[. . .]

> According to the parser, using the indexes would be worse:

Have you run this with EXPLAIN ANALYSE? It will actually perform the
necessary steps, so it will reveal if the planner is getting
something wrong.

A

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