X-Original-To: pgsql-sql-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.2]) by svr1.postgresql.org (Postfix) with ESMTP id A3BB7D1B55D for ; Wed, 22 Oct 2003 20:37:40 +0000 (GMT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (neptune.hub.org [200.46.204.2]) (amavisd-new, port 10024) with ESMTP id 82323-10 for ; Wed, 22 Oct 2003 17:37:11 -0300 (ADT) Received: from candle.pha.pa.us (momjian.navpoint.com [207.106.42.251]) by svr1.postgresql.org (Postfix) with ESMTP id EEEDCD1B590 for ; Wed, 22 Oct 2003 17:37:07 -0300 (ADT) Received: (from pgman@localhost) by candle.pha.pa.us (8.11.6/8.11.6) id h9MKb2320189; Wed, 22 Oct 2003 16:37:02 -0400 (EDT) From: Bruce Momjian Message-Id: <200310222037.h9MKb2320189@candle.pha.pa.us> Subject: Re: Expressional Indexes In-Reply-To: <200310221322.26013.josh@agliodbs.com> To: josh@agliodbs.com Date: Wed, 22 Oct 2003 16:37:02 -0400 (EDT) Cc: Tom Lane , pgsql-sql@postgresql.org X-Mailer: ELM [version 2.4ME+ PL108 (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-Virus-Scanned: by amavisd-new at postgresql.org X-Archive-Number: 200310/293 X-Sequence-Number: 15693 Josh Berkus wrote: > Tom, > > > Mainly that "expressional" is a made-up word. > > So? We're in the tech biz, Tom. New-coined words are expected. And that > way nobody will expect it to mean something else, since we made it up. > -- H. Dumpty, Q.E.D. > > > I have been considering using "calculated index" or "computed index" > > but dunno if that really conveys anything. > > Well, "Expression Indexes" is the most accurate. Or "Expression-Based > Indexes." Computed index sound too much like there is computation done during the index lookup, which there isn't, and it sounds like it would behave differently from a normal index, which it doesn't. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073