From: Michael Fuhr <mike@fuhr.org>
To: vincent.moreau@leroymerlin.fr
Cc: pgsql-performance@postgresql.org
Subject: Re: Execution plan changed after upgrade from 7.3.9 to 8.2.3
Date: Tue, 13 Mar 2007 04:11:17 -0600
Message-ID: <20070313101117.GA98241@winnie.fuhr.org> (raw)
In-Reply-To: <45F65EA3.1030706@leroymerlin.fr>
References: <45F65EA3.1030706@leroymerlin.fr>
On Tue, Mar 13, 2007 at 09:19:47AM +0100, vincent.moreau@leroymerlin.fr wrote:
> Is there an option in the 8.2.3 to change in order to have the same
> execution plan than before ?
Let's see if we can figure out why 8.2.3 is choosing a bad plan.
Have you run ANALYZE on the tables in 8.2.3? Could you post the
query and the complete output of EXPLAIN ANALYZE (preferably without
wrapping) for both versions?
--
Michael Fuhr
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To: pgsql-performance@postgresql.org
Cc: mike@fuhr.org, vincent.moreau@leroymerlin.fr
Subject: Re: Execution plan changed after upgrade from 7.3.9 to 8.2.3
In-Reply-To: <20070313101117.GA98241@winnie.fuhr.org>
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