X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id 110185284D for ; Tue, 21 Jun 2005 12:31:05 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 33192-07 for ; Tue, 21 Jun 2005 15:30:56 +0000 (GMT) Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by svr1.postgresql.org (Postfix) with ESMTP id 7460B5281C for ; Tue, 21 Jun 2005 12:30:56 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.13.1/8.13.1) with ESMTP id j5LFUsEI011564; Tue, 21 Jun 2005 11:30:54 -0400 (EDT) To: Yves Vindevogel Cc: pgsql-performance@postgreSQL.org Subject: Re: Limit clause not using index In-reply-to: <280411ebdb3e2bf1d822b8608fcfc7f7@implements.be> References: <3415.1119364973@sss.pgh.pa.us> <280411ebdb3e2bf1d822b8608fcfc7f7@implements.be> Comments: In-reply-to Yves Vindevogel message dated "Tue, 21 Jun 2005 16:57:28 +0200" Date: Tue, 21 Jun 2005 11:30:54 -0400 Message-ID: <11563.1119367854@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.006 tagged_above=0 required=5 tests=AWL X-Spam-Level: X-Archive-Number: 200506/393 X-Sequence-Number: 13030 Yves Vindevogel writes: > create index ixPrintjobsLoginDescEventdateDesceventtime on > tblPrintjobs (loginuser, desceventdate, desceventtime) ; Hmm, that certainly looks like it should match the query. What happens to the EXPLAIN output if you do "set enable_sort = false"? regards, tom lane