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 1hPyxz-0007cx-S2 for pgsql-hackers@arkaria.postgresql.org; Mon, 13 May 2019 00:37:20 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1hPyxy-00073a-BJ for pgsql-hackers@arkaria.postgresql.org; Mon, 13 May 2019 00:37:18 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hPyxx-000724-OZ for pgsql-hackers@lists.postgresql.org; Mon, 13 May 2019 00:37:18 +0000 Received: from mail-pl1-x642.google.com ([2607:f8b0:4864:20::642]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hPyxq-000543-FS for pgsql-hackers@postgresql.org; Mon, 13 May 2019 00:37:16 +0000 Received: by mail-pl1-x642.google.com with SMTP id g9so5546044plm.6 for ; Sun, 12 May 2019 17:37:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=leadboat.com; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=Enfmy94MOkA5IHDdNfFdLyI/oYswRipWcmi30xpigbk=; b=WHcsv32L3UisH0kAJKQgZOwkvYi2tzSCcBxH7TlgfpeukHoAI5Nk6uUMI19MQAm0v2 yu/3kvRAHrLd5thEFlUwyWEPBwqlM/8x7UHLzyBJJBGRmTaQQWsPJm9D3FKvqtQt+wZ6 FwGugsT8cHJJyhULTLK56/JJXgS026LbUHSrM= 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:references :mime-version:content-disposition:in-reply-to:user-agent; bh=Enfmy94MOkA5IHDdNfFdLyI/oYswRipWcmi30xpigbk=; b=kIowZCyo044oWnPtL0ukI6bMVOQrRzP1+Hal4Vd5zmwrNVOJ7mqHnZrYqbvwqpjOH0 LN2Og2KzviKl9NQZ8zK7QGcHuT0jDqjU7noSp5DpykJpAMq1DFkqtNAxwlQ8t2L2CJsl Gl+B/Dj+4b2rCVxzYKlzA8rmg2nBrRvU1KDqSMPbGaMms5YZ6Ew+qKplTyLtmzfhc01q wPyS7myCwTol/qkdhETFUWFlGCvAtNEyrEbc/VugDyPKyA2bP/TBlfUSTjZHdWFn1LwL aCLDqYwcY5YselZAPggpdhQAvjCGUibW+ltSRLuwYZgyCak83/5hhv+aXJ1FcHijeNr7 naig== X-Gm-Message-State: APjAAAUBu7eMFBdAonKkECF3QeqSzXAOcqV+t4mioGywrjRovTZeHsmP 40LwPNgt8QFZpUlw8ay66ATk6+QE8BM= X-Google-Smtp-Source: APXvYqw024W5r2kZaOgZl8xXuWvWskNue/OHuFb2G8Vb5iMIEY9ICUIw0SPRz6ukFFqSmhxfY/nYZg== X-Received: by 2002:a17:902:a503:: with SMTP id s3mr26962305plq.16.1557707828501; Sun, 12 May 2019 17:37:08 -0700 (PDT) Received: from rfd.leadboat.com (108-233-125-46.lightspeed.sntcca.sbcglobal.net. [108.233.125.46]) by smtp.gmail.com with ESMTPSA id b23sm1586106pfi.6.2019.05.12.17.37.06 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 12 May 2019 17:37:07 -0700 (PDT) Date: Sun, 12 May 2019 17:37:05 -0700 From: Noah Misch To: pgsql-hackers@postgresql.org Cc: 9erthalion6@gmail.com, andrew.dunstan@2ndquadrant.com, hlinnaka@iki.fi, robertmhaas@gmail.com, michael@paquier.xyz, Kyotaro HORIGUCHI Subject: Re: [HACKERS] WAL logging problem in 9.4.3? Message-ID: <20190513003705.GA1202614@rfd.leadboat.com> References: <20190320.171754.171896368.horiguchi.kyotaro@lab.ntt.co.jp> <20190321054835.GB3842129@rfd.leadboat.com> <20190325.213204.236581069.horiguchi.kyotaro@lab.ntt.co.jp> <20190326.163507.239339952.horiguchi.kyotaro@lab.ntt.co.jp> <20190331223158.GB891537@rfd.leadboat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190331223158.GB891537@rfd.leadboat.com> User-Agent: Mutt/1.5.24 (2015-08-30) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On Sun, Mar 31, 2019 at 03:31:58PM -0700, Noah Misch wrote: > On Sun, Mar 10, 2019 at 07:27:08PM -0700, Noah Misch wrote: > > I also liked the design in the https://postgr.es/m/559FA0BA.3080808@iki.fi > > last paragraph, and I suspect it would have been no harder to back-patch. I > > wonder if it would have been simpler and better, but I'm not asking anyone to > > investigate that. > > Now I am asking for that. Would anyone like to try implementing that other > design, to see how much simpler it would be? Anyone? I've been deferring review of v10 and v11 in hopes of seeing the above-described patch first.