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From Paul Joseph Davis <paul.joseph.da...@gmail.com>
Subject Re: Chaining MapReduce function pairs
Date Wed, 29 Jul 2009 03:00:25 GMT
There's nothing builtin. Me and a couple others have tried to do such  
things but nothing has ever stuck. At the moment your best bet would  
be to write som helpers to copy view output to a new db and go from  
there.



On Jul 28, 2009, at 4:53 PM, Cortland Klein <me@pixelcort.com> wrote:

> I'm interested in creating views that chain multiple pairs of  
> MapReduce
> functions together. This would allow me, for example, to do complex  
> data
> analysis that's not possible with only one pair of MapReduce  
> functions.
> When I say chain I mean the second map function takes as its input the
> key-value pairs outputted by the first reduce functions.
>
> Is this something CouchDB can do or will be able to do in the future?
>
> -- 
> Cortland Klein <me@pixelcort.com> +1 408 506 9791
> http://pixelcort.com/
> 2260 California Street #13
> Mountain View, CA, USA 94040

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