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From "Chris Anderson" <>
Subject Re: Document Updates
Date Fri, 14 Nov 2008 01:20:56 GMT
On Thu, Nov 13, 2008 at 5:02 PM, ara.t.howard <> wrote:
> On Nov 13, 2008, at 5:49 PM, Antony Blakey wrote:
>> You could use the view mechanism, and attach a "language" attribute, and
>> have this be a general transformation interface, which would indeed be very
>> nice. For efficiency you would want to apply this over sets of documents,
>> and probably in a transactional context like bulk update does now.
>> However... Damien wants something to use in replication, which would mean
>> that javascript would then become a required, rather than an optional part
>> of Couch, because replication would require it (unless you made the
>> replication diff generator pluggable ... but why go there?). The benefit of
>> the declarative diff format is that applying a diff can be done within
>> Couch.
> couldn't these queries run in the view server?  in fact any mechanism which
> would allow the view server could accomplish this with a protocol between it
> and the db server.  basically it's an addition to the map/reduce
> functionality which would alter documents on the fly.

Antony's right the currently replication does not depend on the
availability of the view server. And I think it is smart to avoid that
dependence, when possible.

Alas, my attempt to bypass all the craziness that is canonical JSON,
has come short of that. Oh wells...

Chris Anderson

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