Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1gFg7s-000804-7t for pgsql-hackers@arkaria.postgresql.org; Thu, 25 Oct 2018 13:56:40 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1gFg7q-00073N-5K for pgsql-hackers@arkaria.postgresql.org; Thu, 25 Oct 2018 13:56:38 +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_SHA384:256) (Exim 4.89) (envelope-from ) id 1gFg7f-0006E4-W6 for pgsql-hackers@lists.postgresql.org; Thu, 25 Oct 2018 13:56:28 +0000 Received: from mail-qt1-x82c.google.com ([2607:f8b0:4864:20::82c]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gFg7c-00078F-3g for pgsql-hackers@postgresql.org; Thu, 25 Oct 2018 13:56:26 +0000 Received: by mail-qt1-x82c.google.com with SMTP id u34-v6so9915857qth.3 for ; Thu, 25 Oct 2018 06:56:23 -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=6RJ7AD331VSFQq4vPjis/gm/ixkqmE3rcJSuBM7238E=; b=K8HBM3SdteyKfpnnC+ZXOltxuPcH+Dr7IAlWnP0oZSDa3vZWcyR6KELK8fkDroazuX 8SC0c4FE3BiFTCMZcI7WUl5HnIr1i1iCXPFb5VSppUQsqJWs8JgMskj6/6rZVnXshJRc PZjR8NHWWiEl3cQ5hyCxqUilBaJZH89YijG/HtS7van7wvq6Xs9M8QLguOsTt0++kYxo EXQGLshERQ0xkwq1rPtcklwFJVkaK/SJpokvwNuQvnV2JdxU6dmodoBkGzZslhuYG7JA RCz0DlagO2plFAmBmUyu0ROzOP4TqofY/fP3xBKUVgMdkgfKkO6kYxH87l5132aVYHCs cRrg== 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=6RJ7AD331VSFQq4vPjis/gm/ixkqmE3rcJSuBM7238E=; b=Y7Brqph0apna3dDbPqdHasLlYNRAvpUpnJ6q4yo7PUJ8OYF+nqogZNbwsBEjSVKPSG EizEcCmTwHnmXOOxzYZlWSRufiyV2l95cv5hET/ypsMylX4XfsrUxYaejBZHIAb3OZI/ 9dso7BfXTqVqkdph2TNsYyk0gYVNspwmLsSWMvKSiKioxgfjNEFJcWxmvSksil9qCC9J BfFgfAD4WsBJekq+a9EeJTkGx1b/Aha8ofiUJqmpkBSy04EVd4QGOq+Zz25Y1TUfeWye I5HkHdvHenIE9nXKeuzStjWRiyOrUOfAVV/6xKCAseCgLOABAq8ITV3BLk43KHFQTcvE sC6Q== X-Gm-Message-State: AGRZ1gKPmWWr6IlIBUmslLnkWxRFf6iBqtU1lPCf3AoZgKT28SQmv7rl MjnLi/uaXd5pwJACH06TRBCBKQnn3Xw= X-Google-Smtp-Source: AJdET5fckmPj4zEx93Dae4itER046HeGCQOrS1dhcnGClkcypI4H9kcB5TuomiTIOITr2BwTJ9ADPg== X-Received: by 2002:aed:29c5:: with SMTP id o63-v6mr1626162qtd.264.1540475781541; Thu, 25 Oct 2018 06:56:21 -0700 (PDT) Received: from alvin.alvh.no-ip.org ([190.121.29.3]) by smtp.gmail.com with ESMTPSA id e5-v6sm3916862qtr.17.2018.10.25.06.56.20 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 25 Oct 2018 06:56:21 -0700 (PDT) Received: by alvin.alvh.no-ip.org (Postfix, from userid 1000) id 8585A631; Thu, 25 Oct 2018 10:56:18 -0300 (-03) Date: Thu, 25 Oct 2018 10:56:18 -0300 From: Alvaro Herrera To: Chapman Flack Cc: PostgreSQL Hackers Subject: Re: PostgreSQL vs SQL/XML Standards Message-ID: <20181025135618.xid44w725xxss5tk@alvherre.pgsql> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5BD1284C.1010305@anastigmatix.net> User-Agent: NeoMutt/20180716 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On 2018-Oct-24, Chapman Flack wrote: > Inspired by the wiki page on PostgreSQL vs SQL Standard in general, > I have made another wiki page specifically about $subject. I hope > this was not presumptuous, and invite review / comment. I have not > linked to it from any other page yet. > > https://wiki.postgresql.org/wiki/PostgreSQL_vs_SQL/XML_Standards Wow, that's ... overwhelming. (I do wonder if we should stop relying on libxml2 and instead look for something supporting XQuery). Would you review Markus Winand patch here? https://postgr.es/m/8BDB0627-2105-4564-AA76-7849F028B96E@winand.at I think doing that would probably point out a couple of ways in which our XMLTABLE implementation is non-conformant, and then fixes it :-) I've been unsure as to applying it to all branches since 10 or just to master. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services