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 1hchLU-0001Sd-Fc for pgsql-hackers@arkaria.postgresql.org; Mon, 17 Jun 2019 02:26:08 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1hchLS-00013G-FE for pgsql-hackers@arkaria.postgresql.org; Mon, 17 Jun 2019 02:26:06 +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 1hchLS-000109-1m for pgsql-hackers@lists.postgresql.org; Mon, 17 Jun 2019 02:26:06 +0000 Received: from mail-qt1-x842.google.com ([2607:f8b0:4864:20::842]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hchLN-0000R8-IY for pgsql-hackers@lists.postgresql.org; Mon, 17 Jun 2019 02:26:05 +0000 Received: by mail-qt1-x842.google.com with SMTP id w17so2600401qto.10 for ; Sun, 16 Jun 2019 19:26:00 -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=vIv3kfr3pv8EiEouxpLQ9q0FgOY24tNzlGp6jGrzp14=; b=vZN1YYHgQ3/jtl0z1koB5hhPch/4qZD8WV+XcwkA+ABnnnGM6io6ia3e0k5PMNSGjD TNvu3gsRfx/V+JIUtXaa0fqvKsTU2lx4GKwh0ObJr+yBERdaYJEQFrDsJIKW5GTZZM+O AdtmsCaAD3dvNCELdK4y36GgQPNCOyiEt69ghfFdlDPqQfEjERVR6FWG0s8PKWpF9k91 AQ/ntRvRoEFP+y2H1lC9pP3CSpXm2DlZgKc7mFvXu//dgaQQLO2QEKyZd49CKbSLHTHe G3CqvGTAoyW06k/7kneBmhvAD0DTzANUFHCN1+xk5aFY1k2irRBdXKBDNIzQ0/m39WpM Eh0g== 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=vIv3kfr3pv8EiEouxpLQ9q0FgOY24tNzlGp6jGrzp14=; b=lSqD2ku0FbF5kgBc518tf1HEv7rTQ7mea1OlRNfjSHvrG2Fqampm0e7m5YzmGI1qi1 UJN3kE5IYGDoBlAHtm3o1jKNoCqAMjAPLcWBGqLXnLqsYk+BBxmHsraG91PSJ4KnxxcH SqVL3scQ8Fxyq+vxmyIqq5P/oZVX4NBgTTDrCw3M1oWYQon5oZtEEZv9JwcNLsjb9GD/ ZodMpLb/+AMVJ5QkhI0gnIkYRE+kTH9FiVusMEkvZF3vYXWpV0m1H3lf3rDOLexSiKPa 7ySWRVf+jostnXSDKUrxbSvxoWl1eLEJ1ywz5Rz2WkS1XQ0HPWtFJCIb6vgV919x61aY XqJA== X-Gm-Message-State: APjAAAUncjeeY9hT7MejG1DeRXXMo3ddQhQXBermJitAhQEkq6e/TMpJ ULONr/eSRN/6c2hlTYXyvqNtvQ== X-Google-Smtp-Source: APXvYqz9C6lW5TZenQyG2tv9vaB79UwXeUeuTE5uomls+jJnn/jqGYJnHH4WR7dlzOk1DBVeQks0IA== X-Received: by 2002:a0c:afac:: with SMTP id s41mr19326315qvc.184.1560738358683; Sun, 16 Jun 2019 19:25:58 -0700 (PDT) Received: from nimloth.alvh.no-ip.org ([179.56.48.227]) by smtp.gmail.com with ESMTPSA id s35sm6317360qts.10.2019.06.16.19.25.57 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 16 Jun 2019 19:25:58 -0700 (PDT) Received: by nimloth.alvh.no-ip.org (Postfix, from userid 1000) id 05A78120619; Sun, 16 Jun 2019 22:25:56 -0400 (-04) Date: Sun, 16 Jun 2019 22:25:55 -0400 From: Alvaro Herrera To: Michael Paquier Cc: Tom Lane , Oleksii Kliukin , pgsql-hackers@lists.postgresql.org Subject: Re: pgsql: Avoid spurious deadlocks when upgrading a tuple lock Message-ID: <20190617022555.GA20544@alvherre.pgsql> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190617013211.GB3153@paquier.xyz> User-Agent: Mutt/1.9.4 (2018-02-28) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On 2019-Jun-17, Michael Paquier wrote: > On Sun, Jun 16, 2019 at 09:10:13PM -0400, Tom Lane wrote: > > Yeah, let's do that. I don't want to risk shipping broken code. > > We can try again for the next updates. > > Could you revert asap please then? Done. I initially thought to keep the test in place, but then realized it might be unstable, so I removed that too. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services