Return-Path: Delivered-To: apmail-couchdb-user-archive@www.apache.org Received: (qmail 69202 invoked from network); 27 Aug 2009 21:54:56 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 27 Aug 2009 21:54:56 -0000 Received: (qmail 54849 invoked by uid 500); 27 Aug 2009 21:54:55 -0000 Delivered-To: apmail-couchdb-user-archive@couchdb.apache.org Received: (qmail 54767 invoked by uid 500); 27 Aug 2009 21:54:55 -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 54757 invoked by uid 99); 27 Aug 2009 21:54:55 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 27 Aug 2009 21:54:55 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of awolff@gmail.com designates 209.85.216.180 as permitted sender) Received: from [209.85.216.180] (HELO mail-px0-f180.google.com) (209.85.216.180) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 27 Aug 2009 21:54:45 +0000 Received: by pxi10 with SMTP id 10so1487539pxi.28 for ; Thu, 27 Aug 2009 14:54:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=AOF3ucwkyArIO/hG/5PbusLAg6IvRwJnQYemau2fL5Q=; b=oZ6Wy3S926lXtfT622FCL6f85/bHRIMlOKK2+Nepa/A5+UTr+sCtJ5/Ds5adcR6+ZN JN1m74/gRO5safBB6Y1hZhwW0xCkXesJq0ciIGO1olW5v+dITD3gLHaxD3jJTHJUy9mi jtVr/9VodknQcSIpK4bysSsjPxBovLYKFx6rk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=RXXVva/iDBCCwgdXn1tlvTfUUxjjZFOAlRQxqEUmvC6CfDvHR1mzO45P819NFRA72P 2rsCZjHX46pOQfwkhjxxR7sbyTJ0EjZIzxb+wHTTaUTiOMcFpAod4ic/CHNFDQZeiP8o LVYS13snkF328QpXk4Yo/O6/0tuU07EL+y/s0= MIME-Version: 1.0 Received: by 10.140.158.7 with SMTP id g7mr217329rve.194.1251410064342; Thu, 27 Aug 2009 14:54:24 -0700 (PDT) In-Reply-To: <48C95C55-F313-46E6-A4E6-B44ECE6B9FC0@apache.org> References: <48C95C55-F313-46E6-A4E6-B44ECE6B9FC0@apache.org> Date: Thu, 27 Aug 2009 14:54:24 -0700 Message-ID: Subject: Re: multiple reduces on same index From: Adam Wolff To: user@couchdb.apache.org Content-Type: multipart/alternative; boundary=000e0cd2298a5a81020472269c38 X-Virus-Checked: Checked by ClamAV on apache.org --000e0cd2298a5a81020472269c38 Content-Type: text/plain; charset=ISO-8859-1 couchdb rules! On Thu, Aug 27, 2009 at 2:20 PM, Jan Lehnardt wrote: > Hi Adam, > > > On 27 Aug 2009, at 23:14, Adam Wolff wrote: > > Hi list,One of our indices (map functions) is particularly data intensive. >> We're generating roughly n^2/2 map entries for each document, so it's >> impractical to generate this index twice. It would be nice to be able to >> write multiple reduce functions against this one index. Anyone else >> encountered this wishlist item? Or maybe there's a feature I missed? >> > > > For each design document CouchDB hashes view indexes by map > functions. If you have byte-by-byte identical map functions in two > views that have different reduce functions, the views share a single > index. > > Cheers > Jan > -- > > --000e0cd2298a5a81020472269c38--