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From: Antony Blakey <antony.blakey@gmail.com>
To: dev@couchdb.apache.org
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Subject: Re: Roadmap discussion
Date: Tue, 10 Feb 2009 09:32:57 +1030
References: <e282921e0902091306l7c478594vbfe8d6eb7a14e978@mail.gmail.com>
 <0BD2915D-BFD5-47F9-8FE2-DE9F56B7BDB8@apache.org>


On 10/02/2009, at 9:24 AM, Damien Katz wrote:

>
> On Feb 9, 2009, at 4:06 PM, Chris Anderson wrote:
>>
>>
>> * Incremental Map Reduce
>> - This is also strong right now. It could be faster, but so far it's
>> been fast enough.
>
> I'd like to see built-in reductions for simple and commonly used  
> things like count, sum, average, etc. When used it would avoid 90%  
> of the current reduction costs.
>
>>
>>
>> * Alternate Storage and View Engines
>> - There are interested parties here, but I think we're hoping to
>> save this one until all the deeply subtle stuff Damien's working on
>> comes together.
>
> I think alternate view and reporting engines are a great idea, and  
> I'd definitely like plug-ins for file attachment storage. Alternate  
> storage engines aren't something that need to wait on me.

Any idea how _external is going to work in a partitioned database? For  
example, if _externals don't see a global update_seq, then mechanisms  
that currently work for e.g. geo-indexing or FTS won't be cluster-wide.

Antony Blakey
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