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From Jan Lehnardt <...@apache.org>
Subject Re: Aggregation
Date Tue, 13 May 2008 11:51:35 GMT

On May 12, 2008, at 23:02, Andrew Gall wrote:

> To whom it may concern,
>
> The wikipedia article about CouchDB says "Aggregate
> functions<http://en.wikipedia.org/wiki/Aggregate_function>and
> filters <http://en.wikipedia.org/wiki/Filter_%28software%29> are  
> computed in
> parallel as in MapReduce <http://en.wikipedia.org/wiki/MapReduce>,  
> rather
> than at query time (although queries may introduce new aggregate  
> functions,
> which execute on the existing documents in parallel)."

>  Specifically what
> kind of aggregations is this referring to if it is accurate at all.

I guess the refer to the reduce part of out Map/Reduce system that lets
you create your own kinds of aggregations.

>
>
> Thanks,
> Andrew
> -- 
> Yours Pagely,
> Andrew Gall
>
> "The reason a lot of people do not recognize opportunity is because it
> usually goes around wearing overalls and looking like hard work."
> - Thomas Edison
>
> http://imgs.xkcd.com/comics/compiler_complaint.png


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