Received: from localhost (maia-5.hub.org [200.46.204.182]) by postgresql.org (Postfix) with ESMTP id 4C4579FB433 for ; Mon, 9 Apr 2007 11:15:15 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.182]) (amavisd-maia, port 10024) with ESMTP id 32033-04 for ; Mon, 9 Apr 2007 11:14:45 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from main2.mycybernet.net (main2.mycybernet.net [209.222.63.140]) by postgresql.org (Postfix) with ESMTP id 7D1D79FA3A7 for ; Mon, 9 Apr 2007 11:14:57 -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 1Haudv-0003qb-Ne; Mon, 09 Apr 2007 10:14:51 -0400 Received: by phlogiston.dydns.org (Postfix, from userid 1000) id 4CB903F9E; Mon, 9 Apr 2007 10:14:46 -0400 (EDT) Date: Mon, 9 Apr 2007 10:14:46 -0400 From: Andrew Sullivan To: Erik Jones Cc: Andrew Sullivan , pgsql-sql@postgresql.org Subject: Re: new idea Message-ID: <20070409141446.GD16486@phlogiston.dyndns.org> References: <1266433218.20070409094224@narod.ru> <20070409122139.GA16486@phlogiston.dyndns.org> <2812EE7F-E9B9-4AF4-AA69-ECA6EB3608F5@myemma.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2812EE7F-E9B9-4AF4-AA69-ECA6EB3608F5@myemma.com> User-Agent: Mutt/1.5.9i X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200704/103 X-Sequence-Number: 28103 On Mon, Apr 09, 2007 at 09:11:57AM -0500, Erik Jones wrote: > > I don't really even see the need for inheritance here. This is what > most ORMs do at the application level already. Wel, sure, but the poster seemed to think that having a way to represent this in the database was a good thing. (I'm not actually convinced even of that. The whole point of SQL was to move away from the hierarchical model, and so grafting a lot of hierarchy back onto it suggests to me that the OP has picked the wrong technology for the problem at the outset.) A -- Andrew Sullivan | ajs@crankycanuck.ca In the future this spectacle of the middle classes shocking the avant- garde will probably become the textbook definition of Postmodernism. --Brad Holland