Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gZNag-0004mO-0T for pgsql-hackers@arkaria.postgresql.org; Tue, 18 Dec 2018 22:11:50 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1gZNae-0002US-NW for pgsql-hackers@arkaria.postgresql.org; Tue, 18 Dec 2018 22:11:48 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gZNae-0002UL-Cu for pgsql-hackers@lists.postgresql.org; Tue, 18 Dec 2018 22:11:48 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gZNac-0007uf-10 for pgsql-hackers@postgresql.org; Tue, 18 Dec 2018 22:11:47 +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 wBIMBgJr021926; Tue, 18 Dec 2018 17:11:42 -0500 From: Tom Lane To: Peter Geoghegan cc: Alvaro Herrera , PostgreSQL Hackers Subject: Re: Fixing findDependentObjects()'s dependency on scan order (regressions in DROP diagnostic messages) In-reply-to: References: <20181218212053.4vqcmmcicbzr2jyc@alvherre.pgsql> Comments: In-reply-to Peter Geoghegan message dated "Tue, 18 Dec 2018 14:02:37 -0800" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <21924.1545171102.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Tue, 18 Dec 2018 17:11:42 -0500 Message-ID: <21925.1545171102@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Peter Geoghegan writes: > On Tue, Dec 18, 2018 at 1:20 PM Alvaro Herrera wrote: >> I can reproduce the >> reported problem without your patch by using that flag. Here's a >> recipe: > Interesting. > Note that if the standard that we're going to hold a solution to here > is "must produce sane output with --ignore-system-indexes", then my > solution will not meet that standard. Do you mean "same" output, or "sane" output? I'd certainly expect the latter. I think though that Alvaro was just offering this as a way to poke at the posited bug in dependency.c without having to install your whole patch. regards, tom lane