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 1lNmyC-0002qn-Cc for pgsql-hackers@arkaria.postgresql.org; Sun, 21 Mar 2021 01:33:32 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1lNmyB-0005px-BA for pgsql-hackers@arkaria.postgresql.org; Sun, 21 Mar 2021 01:33:31 +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 1lNmyB-0005pq-4T for pgsql-hackers@lists.postgresql.org; Sun, 21 Mar 2021 01:33:31 +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 1lNmy9-00051W-5W for pgsql-hackers@lists.postgresql.org; Sun, 21 Mar 2021 01:33:30 +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 12L1XN7Q311371; Sat, 20 Mar 2021 21:33:23 -0400 From: Tom Lane To: Justin Pryzby cc: Robert Haas , Dilip Kumar , Andres Freund , Tomas Vondra , Alexander Korotkov , David Steele , Ildus Kurbangaliev , Dmitry Dolgov <9erthalion6@gmail.com>, Andrey Borodin , pgsql-hackers@lists.postgresql.org Subject: Re: [HACKERS] Custom compression methods (mac+lz4.h) In-reply-to: <309337.1616287493@sss.pgh.pa.us> References: <20210319163511.GL11765@telsasoft.com> <20210319174425.GM11765@telsasoft.com> <20210320212302.GW11765@telsasoft.com> <301730.1616276227@sss.pgh.pa.us> <20210320231957.GX11765@telsasoft.com> <309337.1616287493@sss.pgh.pa.us> Comments: In-reply-to Tom Lane message dated "Sat, 20 Mar 2021 20:44:53 -0400" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <311369.1616290403.1@sss.pgh.pa.us> Date: Sat, 20 Mar 2021 21:33:23 -0400 Message-ID: <311370.1616290403@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk BTW, I tried doing "make installcheck" after having adjusted default_toast_compression to be "lz4". The compression test itself fails because it's expecting the other setting; that ought to be made more robust. Also, I see some diffs in the indirect_toast test, which seems perhaps worthy of investigation. (The diffs look to be just row ordering, but why?) regards, tom lane