Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1Vy3Yd-0002Lf-0A for pgsql-performance@arkaria.postgresql.org; Tue, 31 Dec 2013 17:56:47 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1Vy3Yc-0001Zu-Ej for pgsql-performance@arkaria.postgresql.org; Tue, 31 Dec 2013 17:56:46 +0000 Received: from makus.postgresql.org ([2001:4800:7903:4::125]) by malur.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1Vy3Ya-0001Zl-6j for pgsql-performance@postgresql.org; Tue, 31 Dec 2013 17:56:44 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1Vy3YT-0001gC-40 for pgsql-performance@postgresql.org; Tue, 31 Dec 2013 17:56:43 +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 rBVHtc7G027643; Tue, 31 Dec 2013 12:55:38 -0500 From: Tom Lane To: Josh Berkus cc: Kevin Grittner , Andres Freund , Andrew Dunstan , Jeff Janes , Amit Kapila , "pgsql-performance@postgresql.org" Subject: Re: Performance bug in prepared statement binding in 9.2? In-reply-to: <5283D433.3040406@agliodbs.com> 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> <5283D433.3040406@agliodbs.com> Comments: In-reply-to Josh Berkus message dated "Wed, 13 Nov 2013 11:34:11 -0800" Date: Tue, 31 Dec 2013 12:55:38 -0500 Message-ID: <27642.1388512538@sss.pgh.pa.us> X-Pg-Spam-Score: -2.0 (--) 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 Josh Berkus writes: > 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. Ping? I've been waiting on committing that patch pending some real-world testing. It'd be nice to resolve this question before we ship 9.3.3, which I'm supposing will be sometime in January ... 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