Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ajWq5-0002Ri-16 for pgsql-hackers@arkaria.postgresql.org; Fri, 25 Mar 2016 18:52:05 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1ajWq3-0004Hq-Qf for pgsql-hackers@arkaria.postgresql.org; Fri, 25 Mar 2016 18:52:03 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1ajWoj-0002l7-3Y for pgsql-hackers@postgresql.org; Fri, 25 Mar 2016 18:50:41 +0000 Received: from relay2-d.mail.gandi.net ([2001:4b98:c:538::194]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1ajWof-0000HU-Nw for pgsql-hackers@postgresql.org; Fri, 25 Mar 2016 18:50:40 +0000 Received: from mfilter23-d.gandi.net (mfilter23-d.gandi.net [217.70.178.151]) by relay2-d.mail.gandi.net (Postfix) with ESMTP id 88564C5A49; Fri, 25 Mar 2016 19:50:34 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at mfilter23-d.gandi.net Received: from relay2-d.mail.gandi.net ([IPv6:::ffff:217.70.183.194]) by mfilter23-d.gandi.net (mfilter23-d.gandi.net [::ffff:10.0.15.180]) (amavisd-new, port 10024) with ESMTP id IfEgmhCKuueB; Fri, 25 Mar 2016 19:50:33 +0100 (CET) X-Originating-IP: 98.122.164.227 Received: from [192.168.10.146] (unknown [98.122.164.227]) (Authenticated sender: adsend@dunslane.net) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id CBBD2C5A3C; Fri, 25 Mar 2016 19:50:31 +0100 (CET) Subject: Re: Alter or rename enum value To: Matthias Kurz , Tom Lane References: <56E049CC.8010201@dunslane.net> <25605.1457539654@sss.pgh.pa.us> <56E05635.70908@dunslane.net> <28167.1457543612@sss.pgh.pa.us> <56F49CF8.8050007@BlueTreble.com> <27476.1458876456@sss.pgh.pa.us> Cc: Jim Nasby , pgsql-hackers@postgresql.org From: Andrew Dunstan Message-ID: <56F58876.6020508@dunslane.net> Date: Fri, 25 Mar 2016 14:50:30 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -2.6 (--) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-hackers Precedence: bulk Sender: pgsql-hackers-owner@postgresql.org On 03/25/2016 04:13 AM, Matthias Kurz wrote: > > Hopefully at the commitfest at least the transaction limitation > will/could be tackled - that would help us a lot already. > > I don't believe anyone knows how to do that safely. Enums pose special problems here exactly because unlike all other types the set of valid values is mutable. cheers andre -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers