From user-return-3412-apmail-couchdb-user-archive=couchdb.apache.org@couchdb.apache.org Mon Feb 09 15:51:37 2009 Return-Path: Delivered-To: apmail-couchdb-user-archive@www.apache.org Received: (qmail 76446 invoked from network); 9 Feb 2009 15:51:36 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 9 Feb 2009 15:51:36 -0000 Received: (qmail 35133 invoked by uid 500); 9 Feb 2009 15:51:34 -0000 Delivered-To: apmail-couchdb-user-archive@couchdb.apache.org Received: (qmail 35102 invoked by uid 500); 9 Feb 2009 15:51:34 -0000 Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@couchdb.apache.org Delivered-To: mailing list user@couchdb.apache.org Received: (qmail 35091 invoked by uid 99); 9 Feb 2009 15:51:34 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 09 Feb 2009 07:51:34 -0800 X-ASF-Spam-Status: No, hits=1.2 required=10.0 tests=SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [83.97.50.139] (HELO jan.prima.de) (83.97.50.139) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 09 Feb 2009 15:51:24 +0000 Received: from dahlia.lan (f053003027.adsl.alicedsl.de [::ffff:78.53.3.27]) (AUTH: LOGIN jan, TLS: TLSv1/SSLv3,128bits,AES128-SHA) by jan.prima.de with esmtp; Mon, 09 Feb 2009 15:51:02 +0000 Message-Id: <2B022257-0723-4F8B-A23B-7406A6AF3B69@apache.org> From: Jan Lehnardt To: user@couchdb.apache.org In-Reply-To: <2B705A9C-441C-487C-95E7-B537682F49A7@cisco.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v930.3) Subject: Re: [user] Re: The Blog Date: Mon, 9 Feb 2009 16:50:29 +0100 References: <5186956f0902082052m43546a8dmb6d9a3ebf9685034@mail.gmail.com> <5186956f0902090228p5a6db266l764fde4c82b571d0@mail.gmail.com> <5186956f0902090338i2829df1erebaa24a4feea7e06@mail.gmail.com> <5186956f0902090449s76befd76g4cf9ded9f59efc86@mail.gmail.com> <5186956f0902090627y1239b12es505ee80b2d6bd248@mail.gmail.com> <6a8c90ba0902090651q258bb335uf6142ccb25261931@mail.gmail.com> <20090209145701.GR21180@tumbolia.org> <2B705A9C-441C-487C-95E7-B537682F49A7@cisco.com> X-Mailer: Apple Mail (2.930.3) X-Virus-Checked: Checked by ClamAV on apache.org On 9 Feb 2009, at 16:18, Wout Mertens wrote: > On Feb 9, 2009, at 3:57 PM, Noah Slater wrote: > >> On Mon, Feb 09, 2009 at 09:51:18AM -0500, Adam Petty wrote: >>> Could this thread be added to the wiki - with only minor editing >>> for length >>> - maybe as "a RDBMS vs couch 'Discussion' ?" or something >>> similar?"... >> >> We've learnt from the book that such comparisons tend to be harmful. >> >> They lead people into thinking that there is a direct meaningful >> comparison. >> >> Fundamentally, CouchDB and RDMS solve different problems. > > I dunno, I think it would be interesting to compare the main > benefits of each so that you know what the strong points of each are. Quoting myself from a few mails ago: > CouchDB solves the[sic] similar problems as an RDBMS, but starting > from a different angle (distributed operation instead of single-node > operation, CAP, yadda yadda). The differences as a consequence of different CAP-feature priorization would be interesting, but then, I had hoped that the "Eventual Consistency"* chapter had done that. * http://books.couchdb.org/relax/eventual-consistency Cheers Jan --