Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1whSMt-000EZq-2u for pgsql-hackers@arkaria.postgresql.org; Wed, 08 Jul 2026 13:31:16 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1whSMs-007Ppm-0z for pgsql-hackers@arkaria.postgresql.org; Wed, 08 Jul 2026 13:31:15 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1whSMs-007Ppd-06 for pgsql-hackers@lists.postgresql.org; Wed, 08 Jul 2026 13:31:14 +0000 Received: from smtp.outgoing.loopia.se ([93.188.3.37]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1whSMp-000000009ts-36Ap for pgsql-hackers@postgresql.org; Wed, 08 Jul 2026 13:31:13 +0000 Received: from s807.loopia.se (localhost [127.0.0.1]) by s807.loopia.se (Postfix) with ESMTP id DFD5864EF50 for ; Wed, 08 Jul 2026 15:31:08 +0200 (CEST) Received: from s979.loopia.se (unknown [172.22.191.5]) by s807.loopia.se (Postfix) with ESMTP id CABC064F7A0; Wed, 08 Jul 2026 15:31:08 +0200 (CEST) Received: from localhost (unknown [172.22.191.6]) by s979.loopia.se (Postfix) with ESMTP id C947310BC46E; Wed, 08 Jul 2026 15:31:08 +0200 (CEST) X-Virus-Scanned: amavis at amavis.loopia.se X-Spam-Flag: NO X-Spam-Score: -1.2 X-Spam-Level: X-Spam-Status: No, score=-1.2 tagged_above=-999 required=6.2 tests=[ALL_TRUSTED=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1] autolearn=disabled Authentication-Results: s472.loopia.se (amavis); dkim=pass (2048-bit key) header.d=yesql.se Received: from s934.loopia.se ([172.22.191.6]) by localhost (s472.loopia.se [172.22.190.12]) (amavis, port 10024) with UTF8LMTP id bPiOoSgv4mw2; Wed, 8 Jul 2026 15:31:08 +0200 (CEST) X-Loopia-Auth: user X-Loopia-User: daniel@yesql.se X-Loopia-Originating-IP: 89.255.232.236 Received: from smtpclient.apple (customer-89-255-232-236.stosn.net [89.255.232.236]) (Authenticated sender: daniel@yesql.se) by s934.loopia.se (Postfix) with ESMTPSA id 4BE60917F26; Wed, 08 Jul 2026 15:31:08 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yesql.se; s=loopiadkim1707475645; t=1783517468; bh=i0OE1jbgzeIN4e/n1HSIn0nxnovjYC1nMkXF4483dKg=; h=Subject:From:In-Reply-To:Date:Cc:References:To; b=DQ1Q2OJDfH8ap4Zh0NTJm5qoxEdlpVqnaf1oWU41fvV1Eiw6SHV7FrWkVMFidhkFb yQM/ZYvZVRThVogab5Oxr69CEFqfBIIXMjpsmt1kOrR4ABHsinGo4G62jlwOkeQHQS mkSzlBR3tW64rhxyjj5mvsM1VXxIXvwWdXVoojND1jOqbFTnp+JXjXMfjkghUO8YWb C833zozBaEhLZRSG5AMUbKVDCN1j93uqtydibAT5CDJYqn1uTNRyxtfDrpwCjacvCT MutUMQiMDCRL73jpgrsR1EYFjVE+jbI2Sp6iavmfIZmWzXCNM1Oww3OhF6j1ZCLJyk Ri3aqMb2NYNJg== Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3776.700.51.11.12\)) Subject: Re: allow spread checkpoints when changing checksums online From: Daniel Gustafsson In-Reply-To: Date: Wed, 8 Jul 2026 15:30:58 +0200 Cc: Tomas Vondra , PostgreSQL Hackers Content-Transfer-Encoding: 7bit Message-Id: <90D31839-3D46-444C-8C92-7399CE29B4BD@yesql.se> References: <37745926-4213-49a3-b628-4136e9e49f9b@vondra.me> <7985b839-8c0c-4194-bbf8-ee07ae5ef13b@vondra.me> <9864a6c3-8850-46c4-beeb-13a31ed339df@vondra.me> To: Ewan Young X-Mailer: Apple Mail (2.3776.700.51.11.12) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk > On 8 Jul 2026, at 13:53, Ewan Young wrote: > In func-admin.sgml the signature of pg_disable_data_checksums documents > the default as false: > > pg_disable_data_checksums ( fast bool DEFAULT false ) > but the actual default is true. pg_proc.dat sets Nice catch and +1, I missed that one. -- Daniel Gustafsson