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 1whNNR-000BSa-01 for pgsql-hackers@arkaria.postgresql.org; Wed, 08 Jul 2026 08:11:29 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1whNNP-0067i7-1D for pgsql-hackers@arkaria.postgresql.org; Wed, 08 Jul 2026 08:11:28 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1whNNO-0067hw-39 for pgsql-hackers@lists.postgresql.org; Wed, 08 Jul 2026 08:11:27 +0000 Received: from smtp.outgoing.loopia.se ([93.188.3.37]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1whNNM-00000000Cbi-3Xoa for pgsql-hackers@postgresql.org; Wed, 08 Jul 2026 08:11:27 +0000 Received: from s807.loopia.se (localhost [127.0.0.1]) by s807.loopia.se (Postfix) with ESMTP id 8715F5F9F32 for ; Wed, 08 Jul 2026 10:11:24 +0200 (CEST) Received: from s980.loopia.se (unknown [172.22.191.6]) by s807.loopia.se (Postfix) with ESMTP id 7252A5FA31C; Wed, 08 Jul 2026 10:11:24 +0200 (CEST) Received: from localhost (unknown [172.22.191.6]) by s980.loopia.se (Postfix) with ESMTP id 713792201561; Wed, 08 Jul 2026 10:11:24 +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: s473.loopia.se (amavis); dkim=pass (2048-bit key) header.d=yesql.se Received: from s899.loopia.se ([172.22.191.6]) by localhost (s473.loopia.se [172.22.190.13]) (amavis, port 10024) with LMTP id l-i1pai-EGgC; Wed, 8 Jul 2026 10:11:23 +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 s899.loopia.se (Postfix) with ESMTPSA id A9F652C8BA69; Wed, 08 Jul 2026 10:11:23 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yesql.se; s=loopiadkim1707475645; t=1783498283; bh=tHXaSrURYnYtO8Z5W4VPynGFlwy4qoxHTEdz0p+9q5A=; h=Subject:From:In-Reply-To:Date:Cc:References:To; b=e+DVdEku6a0b971BqK23rX/br72o1+Wnik0t6EbaDK5UXpT5pQDkXq4eOo0t6+BIa ITLzUKuuvZTM0aLBQZtARfLy5nYcEweLlx/0uc5/EyOal4TxjGYnPAn2Q52HRj3rk4 d9seU87zKk/5n/WJHCvi5pyR6N7kJqRcck2eHI5XabB/VrTPfB/HEFAVKCNYW2UxiV 6iM+fpa7bcF/76jNF787IZWrgNJbHhjBeBX9BwJVW7D6/dYYM7UlZsM57W2re6MQHi Zd4Dr5/yB/CgXhap/oduMoPQlhpLRKseYsXhTiubwSMvKkVg2rs232P48A9ac5Hz6P a/B+oSv1yufXg== 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: <9864a6c3-8850-46c4-beeb-13a31ed339df@vondra.me> Date: Wed, 8 Jul 2026 10:11:13 +0200 Cc: PostgreSQL Hackers Content-Transfer-Encoding: quoted-printable Message-Id: References: <37745926-4213-49a3-b628-4136e9e49f9b@vondra.me> <7985b839-8c0c-4194-bbf8-ee07ae5ef13b@vondra.me> <9864a6c3-8850-46c4-beeb-13a31ed339df@vondra.me> To: Tomas Vondra 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 00:36, Tomas Vondra wrote: > On 7/7/26 23:00, Daniel Gustafsson wrote: >> This update will only change the fast parameter if cost_limit or = cost_delay >> were changed, shouldn't the fast parameter also be checked for = runtime update? >=20 > Ah, good catch. I missed that. The attached v3 fixes this. LGTM -- Daniel Gustafsson