Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 73F9C37BFE4 for ; Fri, 10 Oct 2008 04:44:53 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 34516-03 for ; Fri, 10 Oct 2008 04:44:46 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from westnet.com (westnet.com [216.187.52.2]) by postgresql.org (Postfix) with ESMTP id 91A5937BA3E for ; Fri, 10 Oct 2008 04:44:44 -0300 (ADT) Received: from westnet.com (localhost [127.0.0.1]) by westnet.com (8.14.0/8.14.0) with ESMTP id m9A7ibnI027669; Fri, 10 Oct 2008 03:44:37 -0400 (EDT) Received: from localhost (gsmith@localhost) by westnet.com (8.14.0/8.13.2/Submit) with ESMTP id m9A7iah1027664; Fri, 10 Oct 2008 03:44:36 -0400 (EDT) X-Authentication-Warning: westnet.com: gsmith owned process doing -bs Date: Fri, 10 Oct 2008 03:44:36 -0400 (EDT) From: Greg Smith X-X-Sender: gsmith@westnet.com To: Craig James cc: Scott Carey , Carlos Moreno , pgsql-performance@postgresql.org Subject: Re: "Mysterious" issues with newly installed 8.3 In-Reply-To: <48EEC1C5.4090204@emolecules.com> Message-ID: References: <48EE98FE.60100@mochima.com> <48EEC1C5.4090204@emolecules.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200810/51 X-Sequence-Number: 31632 On Thu, 9 Oct 2008, Craig James wrote: > Did you do an ANALYZE on the new database after you cloned it? He ran "vacuumdb -f -z", the -z does an analyze. Also, he's getting nearly identical explain plans out of the two systems, which suggests the stats are similar enough in the two cases. -- * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD