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 923939DC9A6 for ; Tue, 17 Jan 2006 16:04:45 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 75221-06 for ; Tue, 17 Jan 2006 16:04:45 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from vms048pub.verizon.net (vms048pub.verizon.net [206.46.252.48]) by postgresql.org (Postfix) with ESMTP id 5E3FB9DC9A1 for ; Tue, 17 Jan 2006 16:04:43 -0400 (AST) Received: from osgiliath.mathom.us ([70.108.47.21]) by vms048.mailsrvcs.net (Sun Java System Messaging Server 6.2-4.02 (built Sep 9 2005)) with ESMTPA id <0IT9006A16FVHKC5@vms048.mailsrvcs.net> for pgsql-performance@postgresql.org; Tue, 17 Jan 2006 14:04:44 -0600 (CST) Received: from localhost (localhost [127.0.0.1]) by osgiliath.mathom.us (Postfix) with ESMTP id AD5C36061604 for ; Tue, 17 Jan 2006 15:04:42 -0500 (EST) Received: from osgiliath.mathom.us ([127.0.0.1]) by localhost (osgiliath.home.mathom.us [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 18078-04-6 for ; Tue, 17 Jan 2006 15:04:42 -0500 (EST) Received: by osgiliath.mathom.us (Postfix, from userid 1000) id 00E246061601; Tue, 17 Jan 2006 15:04:41 -0500 (EST) Date: Tue, 17 Jan 2006 15:04:41 -0500 From: Michael Stone Subject: Re: Suspending SELECTs In-reply-to: <43CD4BD0.9090807@barettadeit.com> To: pgsql-performance@postgresql.org Mail-followup-to: pgsql-performance@postgresql.org Message-id: <20060117200441.GB1408@mathom.us> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii; format=flowed Content-disposition: inline X-Pgp-Fingerprint: 53 FF 38 00 E7 DD 0A 9C 84 52 84 C5 EE DF 7C 88 X-Virus-Scanned: Debian amavisd-new at mathom.us References: <43CB71AC.20203@barettadeit.com> <9766.1137433907@sss.pgh.pa.us> <43CD4BD0.9090807@barettadeit.com> User-Agent: Mutt/1.5.11 X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.107 required=5 tests=[AWL=0.107] X-Spam-Score: 0.107 X-Spam-Level: X-Archive-Number: 200601/257 X-Sequence-Number: 16735 On Tue, Jan 17, 2006 at 08:56:00PM +0100, Alessandro Baretta wrote: >I understand most of these issues, and expected this kind of reply. Please, >allow me to insist that we reason on this problem and try to find a >solution. My reason for doing so is that the future software industry is >likely to see more and more web applications retrieving data from virtually >endless databases, and in such contexts, it is sensible to ask the final >client--the web client--to store the "cursor state", because web >interaction is intrinsically asynchronous, and you cannot count on users >logging out when they're done, releasing resources allocated to them. Think >of Google. I don't understand why it is better to rework the db instead of just having the web middleware keep track of what cursors are associated with what sessions? Mike Stone