From: Gary Stainburn <gary.stainburn@ringways.co.uk>
To: postgres list <pgsql-sql@postgresql.org>
Subject: Re: Slow response in select
Date: Tue, 21 Sep 2010 15:35:24 +0100
Message-ID: <201009211535.24925.gary.stainburn@ringways.co.uk> (raw)
In-Reply-To: <201009211520.15903.gary.stainburn@ringways.co.uk>
References: <201009211325.55493.gary.stainburn@ringways.co.uk>
<4C98BCFD.10202@postnewspapers.com.au>
<201009211520.15903.gary.stainburn@ringways.co.uk>
On Tuesday 21 September 2010 15:20:15 Gary Stainburn wrote:
>
> I've posted th explain analyze at
>
> http://www1.ringways.co.uk/explain_analyse.txt
>
> I've marked a line with a sort in that appears to be the bit that's taking
> the time. Am I right?
>
I've had a look at this, and I can't even see why the sort is happeing. There
are no order by clauses and only one group by clause in the sub-select. This
group by only works on a very small dataset though.
--
Gary Stainburn
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To: pgsql-sql@postgresql.org
Cc: gary.stainburn@ringways.co.uk
Subject: Re: Slow response in select
In-Reply-To: <201009211535.24925.gary.stainburn@ringways.co.uk>
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