From: Jan Michel <Jan@mueschelsoft.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: One query run twice in parallel results in huge performance decrease
Date: Sat, 30 Nov 2013 12:05:47 +0100
Message-ID: <5299C68B.2060800@mueschelsoft.de> (raw)
In-Reply-To: <21793.1385768887@sss.pgh.pa.us>
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On 30.11.2013 00:48, Tom Lane wrote:
> Are you explicitly ANALYZE'ing the newly-built tables in your script,
> or are you just trusting auto-analyze to get the job done?
Hi Tom,
there is an explicit analyze of the table being done between filling the
table with values and running this query. I sketched the process of
creating and filling the table here:
http://etherpad.netluchs.de/pgquery
Jan
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To: pgsql-performance@postgresql.org
Cc: Jan@mueschelsoft.de, tgl@sss.pgh.pa.us
Subject: Re: One query run twice in parallel results in huge performance decrease
In-Reply-To: <5299C68B.2060800@mueschelsoft.de>
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