Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hMI84-0008BG-24 for pgsql-hackers@arkaria.postgresql.org; Thu, 02 May 2019 20:16:28 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1hMI82-0006rY-R8 for pgsql-hackers@arkaria.postgresql.org; Thu, 02 May 2019 20:16:26 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hMI82-0006nm-HL for pgsql-hackers@lists.postgresql.org; Thu, 02 May 2019 20:16:26 +0000 Received: from mail-qk1-x741.google.com ([2607:f8b0:4864:20::741]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hMI80-0006TB-2X for pgsql-hackers@postgresql.org; Thu, 02 May 2019 20:16:26 +0000 Received: by mail-qk1-x741.google.com with SMTP id c1so2342048qkk.4 for ; Thu, 02 May 2019 13:16:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=2ndquadrant-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :content-transfer-encoding:in-reply-to:user-agent; bh=SQfDWT8B0yboBZ88BI1SWJeNDaRlrMfMDW6ERLA1fmk=; b=He+5DaL4fkpDStBIDv2f/zR1pG4fZAaCtemgUEHGxmgEP4u51LiuiY4ZEHsNOUMj68 6YU8v/p5W1zjlfdWWiguP+a8LJx9Sq6XNuPkRc6/hhJunsW2Af8kC8QN+jFbgU7n7yu+ uY7nLwzaOEIG+oHqVqaSf2iC861Xf4eC9dbhu7m9zFG8+J3KZugRqo+HtgllP2HkYGFc p5RT/OYnqukll36spnonLoJF7PZRRii+6m57vtPM9cQ+qoNbzbQegt8IpPrbKtORnqHG gHbQsEekXrddkhLEbcypz0xuw3mIelJ9qfrYgmaDVkOYMEQLdwqZjCUwfDe7xuhxHVE6 lVVw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=SQfDWT8B0yboBZ88BI1SWJeNDaRlrMfMDW6ERLA1fmk=; b=WXatiUrv72dnZRP1kbJyP1RNsu2gxR5lQuWEDNNmf9GrokQ8XijbWxeNeTwx/O1rOt 4I4MAMDeajJ/Al6glTtj9tQzUuGqv2+Hsc0Mihs6ZkP6jDvLAL9y7vtR5Wa7++7G3mKC s7sAiUFWxUwV+lhR4tHVsbvsh2sNTtMML0cf426oEptM9JSTOWrocBVDQ85F5kcRIN0s ZP9+m+6RR05MTBVCcCeM0P9GleVZ6akFhAY28b2IDkp4Jl+WxZ3MrpKeuTA1ny6sZYBg txFEp0ZFC6/qBp4TtWdhHB02D9cUMDgJk31Za+KSL+I6uUd4HU4uHamTHvFCzzoUBLc+ GZMg== X-Gm-Message-State: APjAAAXbTRywezyz5H/NuWOFIxuJcy00uU3AunPNZ+dlF8bbt1N8CL9P vKA83BlN8BMm4gGEw7wxadfJlg== X-Google-Smtp-Source: APXvYqw5mPagviLTrp7RPD5WpNyiGY8mvn3SWaR6T1bo7CtzRYkUk65WwXuts2CSV8cp2PmL2XT+iw== X-Received: by 2002:ae9:ee15:: with SMTP id i21mr4419535qkg.107.1556828182788; Thu, 02 May 2019 13:16:22 -0700 (PDT) Received: from nimloth.alvh.no-ip.org ([190.121.29.3]) by smtp.gmail.com with ESMTPSA id a15sm1313qkk.87.2019.05.02.13.16.21 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 02 May 2019 13:16:21 -0700 (PDT) Received: by nimloth.alvh.no-ip.org (Postfix, from userid 1000) id 5B8F8120D43; Thu, 2 May 2019 16:16:19 -0400 (-04) Date: Thu, 2 May 2019 16:16:19 -0400 From: Alvaro Herrera To: Andres Freund Cc: Tom Lane , Robert Haas , Masahiko Sawada , Kyotaro HORIGUCHI , "Bossart, Nathan" , PostgreSQL-development Subject: Re: New vacuum option to do only freezing Message-ID: <20190502201619.GA14051@alvherre.pgsql> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190502160335.GA17452@alvherre.pgsql> User-Agent: Mutt/1.9.4 (2018-02-28) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Pushed. I added one comment to explain xmin_frozen also, which otherwise seemed a bit mysterious. I did not backpatch, though, so 9.6-11 are a bit different, but I'm not sure it's a good idea at this point, though it should be pretty innocuous. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services