Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1V52XR-0003bB-2n for pgsql-performance@arkaria.postgresql.org; Thu, 01 Aug 2013 23:44:09 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1V52XQ-0005tR-GU for pgsql-performance@arkaria.postgresql.org; Thu, 01 Aug 2013 23:44:08 +0000 Received: from makus.postgresql.org ([2001:4800:7903:4::125]) by malur.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1V52XP-0005tL-MS for pgsql-performance@postgresql.org; Thu, 01 Aug 2013 23:44:07 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1V52XM-0004i3-9q for pgsql-performance@postgresql.org; Thu, 01 Aug 2013 23:44:07 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.4/8.14.4) with ESMTP id r71Ni2l1004523; Thu, 1 Aug 2013 19:44:02 -0400 From: Tom Lane To: Scott Marlowe cc: "pgsql-performance@postgresql.org" Subject: Re: subselect requires offset 0 for good performance. In-reply-to: References: Comments: In-reply-to Scott Marlowe message dated "Thu, 01 Aug 2013 13:40:41 -0600" Date: Thu, 01 Aug 2013 19:44:02 -0400 Message-ID: <4522.1375400642@sss.pgh.pa.us> X-Pg-Spam-Score: -0.7 (/) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-performance Precedence: bulk Sender: pgsql-performance-owner@postgresql.org Scott Marlowe writes: > I am running 8.4.15 and can try 8.4.17 if some patch has been applied > to it to address this issue. I just want to know should I > A: upgrade to 8.4.17 > or > B: create a self contained test case. A quick look at the release notes shows no planner fixes in 8.4.16 or 8.4.17, so it would be rather surprising if (A) helps. regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance