From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Anne Rosset <arosset@collab.net>
Cc: Richard Huxton <dev@archonet.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Need help with one query
Date: Fri, 20 Mar 2009 20:37:20 -0400
Message-ID: <12521.1237595840@sss.pgh.pa.us> (raw)
In-Reply-To: <603c8f070903201204s53f2a3cvbf9afc8649b2201a@mail.gmail.com>
References: <49C2AC75.5060601@collab.net>
<49C3600E.20504@archonet.com>
<49C3CF52.9090602@collab.net>
<603c8f070903201204s53f2a3cvbf9afc8649b2201a@mail.gmail.com>
Robert Haas <robertmhaas@gmail.com> writes:
> On Fri, Mar 20, 2009 at 1:16 PM, Anne Rosset <arosset@collab.net> wrote:
>> The db version is 8.2.4
> Something is wrong here. How can setting enable_seqscan to off result
> in a plan with a far lower estimated cost than the original plan?
Planner bug no doubt ... given how old the PG release is, I'm not
particularly interested in probing into it now. If Anne can still
reproduce this behavior on 8.2.something-recent, we should look closer.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, robertmhaas@gmail.com, arosset@collab.net, dev@archonet.com
Subject: Re: Need help with one query
In-Reply-To: <12521.1237595840@sss.pgh.pa.us>
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