Received: from localhost (maia-1.hub.org [200.46.204.191]) by postgresql.org (Postfix) with ESMTP id 4D7DD9FB9DA for ; Tue, 10 Apr 2007 16:32:11 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.191]) (amavisd-maia, port 10024) with ESMTP id 53844-01-7 for ; Tue, 10 Apr 2007 16:32:08 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from mailbox.samurai.com (mailbox.samurai.com [205.207.28.82]) by postgresql.org (Postfix) with ESMTP id 475D59FB824 for ; Tue, 10 Apr 2007 16:29:42 -0300 (ADT) Received: from localhost (mailbox.samurai.com [205.207.28.82]) by mailbox.samurai.com (Postfix) with ESMTP id E39A261C8A; Tue, 10 Apr 2007 15:29:38 -0400 (EDT) X-Virus-Scanned: by amavisd-new at mailbox.samurai.com Received: from mailbox.samurai.com ([205.207.28.82]) by localhost (mailbox.samurai.com [205.207.28.82]) (amavisd-new, port 10024) with LMTP id 6EJdFfYHqLre; Tue, 10 Apr 2007 15:29:35 -0400 (EDT) Received: from [192.168.1.102] (d226-84-131.home.cgocable.net [24.226.84.131]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mailbox.samurai.com (Postfix) with ESMTP id 24C7061C68; Tue, 10 Apr 2007 15:29:35 -0400 (EDT) Subject: Re: [DOCS] uuid type not documented From: Neil Conway To: Peter Eisentraut Cc: Gevik Babakhani , pgsql-hackers@postgresql.org In-Reply-To: <200704101828.58118.peter_e@gmx.net> References: <200704101724.27285.peter_e@gmx.net> <1176219030.6558.47.camel@localhost.localdomain> <200704101828.58118.peter_e@gmx.net> Content-Type: text/plain Date: Tue, 10 Apr 2007 15:30:52 -0400 Message-Id: <1176233452.6558.52.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.10.0 Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200704/447 X-Sequence-Number: 101780 On Tue, 2007-04-10 at 18:28 +0200, Peter Eisentraut wrote: > The problem is that most of the standard methods are platform dependent, as > they require MAC addresses or a "good" random source, for instance. http://archives.postgresql.org/pgsql-patches/2007-01/msg00392.php ISTM random() or similar sources is a sufficient PSRNG for the purposes of UUID generation -- I can't see anything in the RFC that would contradict that. -Neil