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 1qpn0I-006ynw-Lz for pgsql-bugs@arkaria.postgresql.org; Mon, 09 Oct 2023 09:56:46 +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 1qpn0G-00C9Jp-AK for pgsql-bugs@arkaria.postgresql.org; Mon, 09 Oct 2023 09:56:45 +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 1qpn0F-00C9J0-Ut for pgsql-bugs@lists.postgresql.org; Mon, 09 Oct 2023 09:56:44 +0000 Received: from out4-smtp.messagingengine.com ([66.111.4.28]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qpn0D-000lWf-WA for pgsql-bugs@lists.postgresql.org; Mon, 09 Oct 2023 09:56:43 +0000 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.nyi.internal (Postfix) with ESMTP id BA6425C0175; Mon, 9 Oct 2023 05:56:40 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute5.internal (MEProxy); Mon, 09 Oct 2023 05:56:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t=1696845400; x= 1696931800; bh=Blxrk6gwsrDoe00p449b7CVTVG0ClZSVxE/3vThe5kU=; b=F wfAGSC3TEKa243atsi5Td+3WA4bAbx1arglFt3vQtLoBNr/R/3RWXDP5gCCMm5V6 GPpZaraTPy3CK3IhRt8iapV+FhsIdX76hUSz9VI7Cv2EKkOwI9zdxyht+5Q39KXc QtBxalMal7jShb2teoRWddpioxGwftWfvgR9E6XvcBULjy1F9Z/o5WZYzIqPrThc l+7fD/jljcZudPksqwC0SAgbzmsR8UuQB90kKv0ADDNCd2GXuAld+b0WIRRM4qbB YOKXJ/Ivvd19yo1VOVxp7b8wV5YoQLtxzhWo5EjcLCuDFCMlo53aJuE8OcEHVt5W Pgslp0O0nuRb6vdAxFPag== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvkedrheefgddvudcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhepfffhvfevuffkgggtugfgjgesthekre dttddtjeenucfhrhhomheptehlvhgrrhhoucfjvghrrhgvrhgruceorghlvhhhvghrrhgv segrlhhvhhdrnhhoqdhiphdrohhrgheqnecuggftrfgrthhtvghrnhepkeefieehkeekff dtffeggedtffelkeeigfduvdekgfdugfeluedtiefhkeetudfgnecuffhomhgrihhnpehg ihhthhhusgdrtghomhdpvghnthgvrhhprhhishgvuggsrdgtohhmnecuvehluhhsthgvrh fuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomheprghlvhhhvghrrhgvsegrlhhv hhdrnhhoqdhiphdrohhrgh X-ME-Proxy: Feedback-ID: ia2694551:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 9 Oct 2023 05:56:39 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alvh.no-ip.org; s=schmee; t=1696845398; bh=ACney6ZLLWQLbS+HZSharMCiihJXoy6R0XUj0fz5cqk=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=Sj6YOb5Af9O+XmsgzTtvfYKRRHsnI6g0BWsZcOfW2zveHrb2x6DCW5xMVzNeZBUaQ jcMTzafqvfuhS67x5UvLiRAQq37dg6DOIZLzyrL0j2G7WVN7MmpAiNtHTENmyen71s fTIEPdPHmjC5R0Wn/z9Wo1/uwk3YXbCXw3QrbozoCzPreIM+aHmVWDlytZ0/KMeV1V PpkrRwfk/hvEaGCgvgRwJ2qDO2u+X+lIA5syZUtmkNClyA177hDmEpwcaXDMaPXB0T Ro1AW23zXnOT5qrU9dIq9jnhGfpsXUaxDTRgAoJ6WWcY95oIFMj37zuh0w7PJzo8ru n68Tf2mONCH2g== Received: by perhan.alvh.no-ip.org (Postfix, from userid 1000) id AE76D3146; Mon, 9 Oct 2023 11:56:38 +0200 (CEST) Date: Mon, 9 Oct 2023 11:56:38 +0200 From: Alvaro Herrera To: Matthias Apitz Cc: pgsql-bugs@lists.postgresql.org Subject: Re: Access to old versions of a row Message-ID: <202310090956.3rwqgnavanez@alvherre.pgsql> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On 2023-Oct-08, Matthias Apitz wrote: > > As long as the vacuum is not run, older versions of a given row should > be "somewhere". Is there a way to read them? Maybe with https://github.com/df7cb/pg_dirtyread -- Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/