X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 4714F11F6619 for ; Mon, 3 Apr 2006 18:35:18 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 34874-02 for ; Mon, 3 Apr 2006 18:35:17 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id F3E3C11F638E for ; Mon, 3 Apr 2006 18:35:15 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.13.6/8.13.6) with ESMTP id k33LZ7pq016937; Mon, 3 Apr 2006 17:35:07 -0400 (EDT) To: "Mike Quinn" cc: pgsql-performance@postgresql.org Subject: Re: The order of fields around the "=" in the WHERE conditions In-reply-to: <44313030020000E5000001DA@dp_mail.co.merced.ca.us> References: <44313030020000E5000001DA@dp_mail.co.merced.ca.us> Comments: In-reply-to "Mike Quinn" message dated "Mon, 03 Apr 2006 14:24:48 -0700" Date: Mon, 03 Apr 2006 17:35:07 -0400 Message-ID: <16936.1144100107@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.114 required=5 tests=[AWL=0.114] X-Spam-Score: 0.114 X-Spam-Level: X-Archive-Number: 200604/34 X-Sequence-Number: 18118 "Mike Quinn" writes: > -- The order of fields around the "=" in the WHERE conditions > -- affects the query plan. That absolutely should not be happening. Could we see a complete test case? regards, tom lane