Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1VggCk-0005ay-Pm for pgsql-performance@arkaria.postgresql.org; Wed, 13 Nov 2013 19:34:23 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1VggCk-00024M-6T for pgsql-performance@arkaria.postgresql.org; Wed, 13 Nov 2013 19:34:22 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1VggCj-00024F-1b for pgsql-performance@postgresql.org; Wed, 13 Nov 2013 19:34:21 +0000 Received: from smtp.01.com ([199.36.142.181]) by magus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1VggCf-0001u8-4F for pgsql-performance@postgresql.org; Wed, 13 Nov 2013 19:34:20 +0000 Received: from localhost (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id 600E23F4301; Wed, 13 Nov 2013 13:34:16 -0600 (CST) X-Virus-Scanned: amavisd-new at smtp-out-1.01.com Received: from smtp.01.com ([127.0.0.1]) by localhost (smtp-out-1.01.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PCWbBg1mzX2Y; Wed, 13 Nov 2013 13:34:16 -0600 (CST) Received: from smtp.01.com (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id 388443F4314; Wed, 13 Nov 2013 13:34:16 -0600 (CST) Received: from localhost (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id 1C55D3F4301; Wed, 13 Nov 2013 13:34:16 -0600 (CST) X-Virus-Scanned: amavisd-new at smtp-out-1.01.com Received: from smtp.01.com ([127.0.0.1]) by localhost (smtp-out-1.01.com [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id DB-zDnpB_TiA; Wed, 13 Nov 2013 13:34:16 -0600 (CST) Received: from [172.47.23.102] (50-1-86-31.dsl.dynamic.sonic.net [50.1.86.31]) by smtp-out-1.01.com (Postfix) with ESMTPSA id 1DFDD3F4314; Wed, 13 Nov 2013 13:34:15 -0600 (CST) Message-ID: <5283D433.3040406@agliodbs.com> Date: Wed, 13 Nov 2013 11:34:11 -0800 From: Josh Berkus Organization: PostgreSQL Experts Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Tom Lane , Kevin Grittner CC: Andres Freund , Andrew Dunstan , Jeff Janes , Amit Kapila , "pgsql-performance@postgresql.org" Subject: Re: Performance bug in prepared statement binding in 9.2? References: <51FAA1B8.6040809@agliodbs.com> <522E69F1.8070203@dunslane.net> <20130910122036.GF1024477@alap2.anarazel.de> <522F146D.2070908@dunslane.net> <5230B801.90507@agliodbs.com> <20130911211253.GF1138556@alap2.anarazel.de> <523120E9.6020300@agliodbs.com> <24236.1383940000@sss.pgh.pa.us> <1384014645.82057.YahooMailNeo@web162903.mail.bf1.yahoo.com> <19685.1384307200@sss.pgh.pa.us> In-Reply-To: X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -1.9 (-) 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 Tom, > There's an abbreviated version of this argument in the comments in > my proposed patch at > http://www.postgresql.org/message-id/11927.1384199294@sss.pgh.pa.us > What I'm hoping will happen next is that the complainants will hot-patch > that and see if it fixes their problems. We can't really determine > what to do without that information. Unfortunately, the original reporter of this issue will not be available for testing for 2-3 weeks, and I haven't been able to devise a synthetic test which clearly shows the issue. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance