Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@couchdb.apache.org
Received-SPF: neutral (nike.apache.org: local policy)
Date: Wed, 20 Jun 2012 10:09:29 +0100
From: Rory Franklin <rory@chillibean.tv>
To: user@couchdb.apache.org
Message-ID: <34DE079AB1D74E78A5167FD8B931B06B@chillibean.tv>
In-Reply-To: 
 <CACrj35FovHcv+Hc5tWnMLoLVXZ+C5LyW2GJBqA0Z8QvK6PyOXg@mail.gmail.com>
References: <EE9E51C7AB414278BBEAE7A33CBB2C9B@chillibean.tv>
 <3CB7FA33-4ED6-4B80-97EC-A00FB1E8B9E9@gmail.com>
 <CACrj35FovHcv+Hc5tWnMLoLVXZ+C5LyW2GJBqA0Z8QvK6PyOXg@mail.gmail.com>
Subject: Re: Reducing/Grouping an array
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="4fe19349_41b71efb_164d6"

--4fe19349_41b71efb_164d6
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Thanks to both of you for the answer (sorry for my delayed reply!) - it works like a charm! Is this something that has appeared in recent versions of Couch? We had a database running on 1.0.1 that this didn't work on (upgrading to 1.2 fixed it though).


Rory


On Monday, 11 June 2012 at 18:58, Mark Hahn wrote:

> map-reduce works on all types of obects or even lists of types
> 
> On Mon, Jun 11, 2012 at 3:39 AM, Robert Newson <robert.newson@gmail.com (mailto:robert.newson@gmail.com)>wrote:
> 
> > Sure, the built-in _sum reduce function works for lists of numbers too.
> > 
> > B.
> > 
> > On 11 Jun 2012, at 11:29, Rory Franklin wrote:
> > 
> > > Hi,
> > > 
> > > Is it possible to have a view that emits out something like the
> > following:
> > > 
> > > ("key1", [1,1,0,1])
> > > ("key1", [1,1,1,0])
> > > ("key1", [1,0,0,0])
> > > ("key2", [0,1,0,0])
> > > 
> > > which can be grouped to the following:
> > > 
> > > "key1", [3,2,1,1]
> > > "key2", [0,1,0,0]
> > > 
> > > 
> > > Or would this calculation have to be made in the application layer?
> > > 
> > > 
> > > Thanks,
> > > Rory
> > > 
> > 
> > 
> 
> 
> 


--4fe19349_41b71efb_164d6--