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 4.94.2) (envelope-from ) id 1tZy5B-00EoEy-U2 for pgsql-hackers@arkaria.postgresql.org; Mon, 20 Jan 2025 20:09:14 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1tZy5A-005yD1-0m for pgsql-hackers@arkaria.postgresql.org; Mon, 20 Jan 2025 20:09:12 +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 4.94.2) (envelope-from ) id 1tZy59-005yCI-Nu for pgsql-hackers@lists.postgresql.org; Mon, 20 Jan 2025 20:09:11 +0000 Received: from sss.pgh.pa.us ([68.162.161.243]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tZy57-000bTS-1z for pgsql-hackers@lists.postgresql.org; Mon, 20 Jan 2025 20:09:10 +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 50KK90j93081499; Mon, 20 Jan 2025 15:09:00 -0500 From: Tom Lane To: Christoph Berg cc: PostgreSQL Hackers Subject: Re: tzdata 2025a and timestamptz.out In-reply-to: References: Comments: In-reply-to Christoph Berg message dated "Mon, 20 Jan 2025 20:23:10 +0100" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <3081497.1737403740.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Mon, 20 Jan 2025 15:09:00 -0500 Message-ID: <3081498.1737403740@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Christoph Berg writes: > SELECT make_timestamptz(1846, 12, 10, 0, 0, 0, 'Asia/Manila') AT TIME Z= ONE 'UTC'; > timezone > -------------------------- > - Wed Dec 09 15:56:00 1846 > + Wed Dec 09 15:56:08 1846 Grumble. Let's switch to using Asia/Singapore in this test case. It has a roughly similar UTC offset, and that offset hasn't changed in tzdb since 2003. (Gotta love "git blame".) regards, tom lane