Received: from malur.postgresql.org ([2a02:16a8:dc51::56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1fGtL8-0002x7-HW for pgsql-hackers@arkaria.postgresql.org; Thu, 10 May 2018 21:43:06 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1fGtL6-0005IA-Kj for pgsql-hackers@arkaria.postgresql.org; Thu, 10 May 2018 21:43:04 +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 4.89) (envelope-from ) id 1fGtL6-0005Hz-DX for pgsql-hackers@lists.postgresql.org; Thu, 10 May 2018 21:43:04 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1fGtL3-0003WW-Pj for pgsql-hackers@postgresql.org; Thu, 10 May 2018 21:43:03 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.4/8.14.4) with ESMTP id w4ALgmLB013500; Thu, 10 May 2018 17:42:48 -0400 From: Tom Lane To: "Jonathan S. Katz" cc: Andres Freund , Alvaro Herrera , Robert Haas , =?utf-8?Q?Dagfinn_Ilmari_Manns=C3=A5ker?= , John Naylor , Andreas Karlsson , "pgsql-hackers@postgresql.org" Subject: Re: [HACKERS] Cutting initdb's runtime (Perl question embedded) In-reply-to: References: <20180509153924.32kvslqeqdyco7c5@alvherre.pgsql> <8873.1525881373@sss.pgh.pa.us> <21138.1525969099@sss.pgh.pa.us> <20180510174057.lxvpwbgbbghz2zrm@alap3.anarazel.de> <373.1525981024@sss.pgh.pa.us> Comments: In-reply-to "Jonathan S. Katz" message dated "Thu, 10 May 2018 14:37:07 -0700" MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-ID: <13498.1525988568.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Thu, 10 May 2018 17:42:48 -0400 Message-ID: <13499.1525988568@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk "Jonathan S. Katz" writes: >> On May 10, 2018, at 12:37 PM, Tom Lane wrote: >> OTOH, in view of Josh's old gripe, maybe it could be argued to be a bug >> fix, at least on platforms where it does anything. > Read back to get some history/context on this, and from my vantage > point it sounds like this is fixing a bug (i.e. incorrect behavior). It = also sounds > like based on the changes the earliest we=E2=80=99d be able to commit is= is 11 and > not any further because people could be expecting the incorrect behavior= to > happen, and thus we may break existing systems. Yeah, given the small number of complaints, I doubt back-patching would be a good idea. Seems like we should just leave this for v12. regards, tom lane