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 1wuDhF-000XV8-10 for pgsql-committers@arkaria.postgresql.org; Wed, 12 Aug 2026 18:29:01 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1wuDhA-009QvG-1d for pgsql-committers@arkaria.postgresql.org; Wed, 12 Aug 2026 18:28:57 +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 1wuDhA-009Qv8-0j for pgsql-committers@lists.postgresql.org; Wed, 12 Aug 2026 18:28:57 +0000 Received: from relay1-d.mail.gandi.net ([217.70.183.193]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wuDh9-00000000JaF-14MQ for pgsql-committers@lists.postgresql.org; Wed, 12 Aug 2026 18:28:56 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id 986193ED25; Wed, 12 Aug 2026 18:28:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vondra.me; s=gm1; t=1786559332; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rkq4RZZEU575WQ0YdR+hAfZ64E04yeCDpojIzkXRVpU=; b=G/m8+nOeaKGZx+sZIWHzJbtMJiUFIyU9K8UwRK2HRgdWAmuUX5MFxUgmel+vDE4j4YhUHm AYUolBiot+eBWStg2ulYX9J+pPd0vqy5FhiyTLf6mrOAF/upqRknO4hehReQSPavMzKQ5W XBjvxP1QqPO0hjxK7C6TvZGpIQtaBegWs8SUxaOa73QV5pcSVZv6n0NpAeZfhzEgc9ojoL 4GT/EKO9X/cOtqwMpg3/bw+gwlYCZ4X9zD5s0ZRqDY1zyA0TbCeUvZ1nF42ei8jZzNMP5T xa5wgIUbxEtZQ4tgOzRq8c58ppyt6RPuSbaKyiKZtQYycSaYQRxhdbpyyPVWMw== Message-ID: <2d87748e-80dd-4092-be64-cd1c643f3eb9@vondra.me> Date: Wed, 12 Aug 2026 20:28:50 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: pgsql: Change wal_compression=on to the first of zstd, lz4, pglz To: Tom Lane Cc: pgsql-committers@lists.postgresql.org References: <2569564.1786492371@sss.pgh.pa.us> <2730783.1786550159@sss.pgh.pa.us> Content-Language: en-US From: Tomas Vondra In-Reply-To: <2730783.1786550159@sss.pgh.pa.us> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-GND-Sasl: tomas@vondra.me X-GND-State: clean X-GND-Score: 0 X-GND-Cause: 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 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On 8/12/26 17:55, Tom Lane wrote: > Tomas Vondra writes: >> On 8/12/26 01:52, Tom Lane wrote: >>> [ raised eyebrow... ] I don't object to this change in master, >>> but it seems pretty out of scope for v19 at this point. > >> Yeah. The consensus in the discussion thread was it'd be good to do this >> in 19, together with the TOAST compression default. I wasn't sure about >> that, so I consulted with the RMT and the response was it's OK. > > Ah. The point about changing this along with the TOAST compression > default does make sense. Objection withdrawn ... but this needs > to get into the v19 release notes beside the other change. > Right. Naive question - what's the proper process to make that happen for changes like this? Ping someone / RMT? regards -- Tomas Vondra