Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@couchdb.apache.org
Received-SPF: pass (nike.apache.org: domain of stephenp@agrussell.com
 designates 204.251.33.236 as permitted sender)
Message-Id: <3E97D8CA-2E19-44B1-8454-7A213F040622@agrussell.com>
From: Stephen Prater <stephenp@agrussell.com>
To: user@couchdb.apache.org
In-Reply-To: <AANLkTimR6NnwY7GVV4pnZ1A2KA-U+tGGXYSfOUjUTKNY@mail.gmail.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (Apple Message framework v936)
Subject: Re: Is it possible to do another round of map-reduce on a view
 result?
Date: Thu, 16 Sep 2010 08:21:00 -0500
References: <AANLkTimR6NnwY7GVV4pnZ1A2KA-U+tGGXYSfOUjUTKNY@mail.gmail.com>

Not with an out-of-the-box version.

I think the recommended method is to do exactly what you're doing.

On Sep 15, 2010, at 1:35 PM, sleepy wrote:

> Hi,
>
> I'm doing some statistic with map-reduce view, but need to sort the  
> result
> by the reduced result.
> I find it's difficult to achieve without copy the result to another  
> database
> and create a view again by emitting that value as key.
>
> It caused the data expanded and the copying process is a
> time consuming serial process too.
>
> I'm wondering is there any way to do another round of map-reduce on  
> a view
> result?
>
> sleepnova