Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nb2ON-0008Ip-VD for pgsql-hackers@arkaria.postgresql.org; Sun, 03 Apr 2022 15:43:51 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1nb2OL-0001C7-Tx for pgsql-hackers@arkaria.postgresql.org; Sun, 03 Apr 2022 15:43:49 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nb2OL-0001By-KW for pgsql-hackers@lists.postgresql.org; Sun, 03 Apr 2022 15:43:49 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nb2OJ-0002lI-89 for pgsql-hackers@postgresql.org; Sun, 03 Apr 2022 15:43:49 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 233FhWRv1640366; Sun, 3 Apr 2022 11:43:32 -0400 From: Tom Lane To: Alvaro Herrera cc: Fabien COELHO , Tatsuo Ishii , nagata@sraoss.co.jp, thomas.munro@gmail.com, m.polyakova@postgrespro.ru, pgsql-hackers@postgresql.org, teodor@sigaev.ru Subject: Re: [HACKERS] WIP aPatch: Pgbench Serialization and deadlock errors In-reply-to: <202204031154.qrl4cvuumzcl@alvherre.pgsql> References: <202204031154.qrl4cvuumzcl@alvherre.pgsql> Comments: In-reply-to Alvaro Herrera message dated "Sun, 03 Apr 2022 13:54:14 +0200" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1640364.1649000612.1@sss.pgh.pa.us> Date: Sun, 03 Apr 2022 11:43:32 -0400 Message-ID: <1640365.1649000612@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Alvaro Herrera writes: > I think it's easier to just say "if feature X is not enabled, then > columns XYZ are always zeroes". +1, that's pretty much what I was thinking. regards, tom lane