X-Original-To: pgsql-docs-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id 7622A5E4711; Wed, 1 Sep 2004 00:28:23 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 71200-02; Wed, 1 Sep 2004 03:28:25 +0000 (GMT) Received: from candle.pha.pa.us (candle.pha.pa.us [207.106.42.251]) by svr1.postgresql.org (Postfix) with ESMTP id 056CC5E471B; Wed, 1 Sep 2004 00:28:16 -0300 (ADT) Received: (from pgman@localhost) by candle.pha.pa.us (8.11.6/8.11.6) id i813SQU29489; Tue, 31 Aug 2004 23:28:26 -0400 (EDT) From: Bruce Momjian Message-Id: <200409010328.i813SQU29489@candle.pha.pa.us> Subject: Re: FAQ -- Index usage/speed In-Reply-To: <20040901002121.Q31538@ganymede.hub.org> To: "Marc G. Fournier" Date: Tue, 31 Aug 2004 23:28:26 -0400 (EDT) Cc: Josh Berkus , "Thomas F. O'Connell" , pgsql-docs@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 hub.org X-Spam-Status: No, hits=0.0 tagged_above=0.0 required=5.0 tests=HTML_MESSAGE X-Spam-Level: X-Archive-Number: 200409/3 X-Sequence-Number: 2522 Marc G. Fournier wrote: > On Tue, 31 Aug 2004, Josh Berkus wrote: > > > Bruce, > > > >> However, with this fixed in 8.0, it probably isn't worth adding to the > >> FAQ. > > > > I'd disagree. We can expect people to be using 7.3 and 7.4 for 2 years > > yet. > > Have to agree ... I'm still supporting clients using 7.2 ... OK, added to FAQ:

In pre-8.0 releases, indexes often can not be used unless the data types exactly match the index's column types. This is particularly true of int2, int8, and numeric column indexes.

-- 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