Received: from maia.hub.org (maia-3.hub.org [200.46.204.243]) by mail.postgresql.org (Postfix) with ESMTP id BEFAE1337B6C for ; Fri, 29 Oct 2010 18:09:49 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.243]) (amavisd-maia, port 10024) with ESMTP id 32953-04 for ; Fri, 29 Oct 2010 21:09:41 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from glacier.frostconsultingllc.com (glacier.frostconsultingllc.com [69.36.227.170]) by mail.postgresql.org (Postfix) with ESMTP id 643F51337B7B for ; Fri, 29 Oct 2010 18:09:41 -0300 (ADT) Received: from dsl081-245-111.sfo1.dsl.speakeasy.net ([64.81.245.111] helo=Sidney-Stratton.local) by glacier.frostconsultingllc.com with esmtpsa (TLSv1:CAMELLIA256-SHA:256) (Exim 4.69) (envelope-from ) id 1PBwCg-0007zd-0B for pgsql-performance@postgresql.org; Fri, 29 Oct 2010 14:09:40 -0700 Message-ID: <4CCB3811.80900@agliodbs.com> Date: Fri, 29 Oct 2010 14:09:37 -0700 From: Josh Berkus User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b3pre) Gecko/20090223 Thunderbird/3.0b2 MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Re: Slow Query- Bad Row Estimate References: <216FFB77CBFAEE4B8EE4DF0A939FF1D1018354@mail-001.corp.automotive.com> In-Reply-To: <216FFB77CBFAEE4B8EE4DF0A939FF1D1018354@mail-001.corp.automotive.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.9 tagged_above=-10 required=5 tests=BAYES_00=-1.9 X-Spam-Level: X-Archive-Number: 201010/592 X-Sequence-Number: 41010 On 10/29/10 1:54 PM, Ozer, Pam wrote: > " -> Index Scan using dealergroupgeocache_i01 on > dealergroupgeocache (cost=0.00..5719.56 rows=9055 width=10) (actual > time=0.015..87.689 rows=163491 loops=1)" This appears to be your problem here. a) when was dealergroupgeocache last ANALYZED? b) try increasing the stats_target on dealergroupid and regionid, to say 500 and re-analyzing. -- -- Josh Berkus PostgreSQL Experts Inc. http://www.pgexperts.com