Received: from localhost (unknown [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id 320142E00E9 for ; Wed, 5 Mar 2008 12:54:14 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 66366-06 for ; Wed, 5 Mar 2008 12:54:04 -0400 (AST) X-Greylist: delayed 00:20:52.808378 by SQLgrey-1.7.5 Received: from macprofessionals.com (66.238.128.226.ptr.us.xo.net [66.238.128.226]) by postgresql.org (Postfix) with ESMTP id F28392E01CB for ; Wed, 5 Mar 2008 12:54:04 -0400 (AST) Received: from localhost (localhost [127.0.0.1]) by macprofessionals.com (Postfix) with ESMTP id 841121F4611B for ; Wed, 5 Mar 2008 11:33:10 -0500 (EST) Received: from macprofessionals.com ([127.0.0.1]) by localhost (webserv.macprofessionals.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 07893-04 for ; Wed, 5 Mar 2008 11:32:57 -0500 (EST) Received: from [172.20.20.64] (unknown [172.20.20.64]) by macprofessionals.com (Postfix) with ESMTP id C85711F460B8 for ; Wed, 5 Mar 2008 11:32:57 -0500 (EST) Mime-Version: 1.0 (Apple Message framework v753) In-Reply-To: <200803051620.m25GKW328140@momjian.us> References: <200803051620.m25GKW328140@momjian.us> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <4820142F-4F52-4EA4-AA64-7A110AA852DF@macprofessionals.com> Content-Transfer-Encoding: 7bit From: Phil Frost Subject: Re: Re: [BUGS] BUG #3965: UNIQUE constraint fails on long column values Date: Wed, 5 Mar 2008 11:32:57 -0500 To: PostgreSQL-documentation X-Mailer: Apple Mail (2.753) X-Virus-Scanned: by amavisd-new at macprofessionals.com X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.048 tagged_above=0 required=5 tests=AWL=-0.052, RDNS_DYNAMIC=0.1 X-Spam-Level: X-Archive-Number: 200803/10 X-Sequence-Number: 4822 On Mar 5, 2008, at 11:20 , Bruce Momjian wrote: > > Does anyone think it is a good idea to document that our indexes > cannot > index arbirarily-long strings? I see nothing in the documentation now > about it. +1 I never even knew. I'd be especially interested to hear about details, like how long strings can be until they are not guaranteed unique.