Received: from localhost (maia-3.hub.org [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id D8CCC9FB4E7 for ; Wed, 6 Jun 2007 16:24:00 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 54558-01 for ; Wed, 6 Jun 2007 16:23:45 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from main2.mycybernet.net (main2.mycybernet.net [209.222.63.140]) by postgresql.org (Postfix) with ESMTP id D1B7B9FB4DA for ; Wed, 6 Jun 2007 16:23:57 -0300 (ADT) Received: from 227-54-222-209.mycybernet.net ([209.222.54.227] helo=phlogiston.dydns.org) by main2.mycybernet.net with esmtp (Exim 4.62) (envelope-from ) id 1Hw16r-0007uP-1D for pgsql-performance@postgresql.org; Wed, 06 Jun 2007 15:23:57 -0400 Received: by phlogiston.dydns.org (Postfix, from userid 1000) id AD8B03F9E; Wed, 6 Jun 2007 15:23:51 -0400 (EDT) Date: Wed, 6 Jun 2007 15:23:51 -0400 From: Andrew Sullivan To: pgsql-performance@postgresql.org Subject: Re: Thousands of tables versus on table? Message-ID: <20070606192351.GC11545@phlogiston.dyndns.org> References: <1180980943.31471.322.camel@archimedes> <46645DD9.7030805@soliantconsulting.com> <877iqjmro5.fsf@oxford.xeocode.com> <46647427.4030103@g2switchworks.com> <466593E5.1010904@g2switchworks.com> <87sl96z0wf.fsf@oxford.xeocode.com> <10525.1181080765@sss.pgh.pa.us> <20070605220609.GA9835@uio.no> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070605220609.GA9835@uio.no> User-Agent: Mutt/1.5.9i X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200706/101 X-Sequence-Number: 25134 On Wed, Jun 06, 2007 at 12:06:09AM +0200, Steinar H. Gunderson wrote: > Wasn't there also talk about adding the ability to mark individual > partitions as read-only, thus bypassing MVCC and allowing queries > to be satisfied using indexes only? I have a (different) problem that read-only data segments (maybe partitions, maybe something else) would help, so I know for sure that someone is working on a problem like this, but I don't think it's the sort of thing that's going to come any time soon. A -- Andrew Sullivan | ajs@crankycanuck.ca I remember when computers were frustrating because they *did* exactly what you told them to. That actually seems sort of quaint now. --J.D. Baldwin