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From Chris Anderson <>
Subject Re: Google Summer of Code
Date Tue, 03 Mar 2009 22:28:20 GMT
On Tue, Mar 3, 2009 at 2:17 PM, Barry Wark <> wrote:
> I don't claim to have groked CouchDB enough to know what the
> priorities for GSoC projects should be, but the missing feature that
> is preventing my organization from using CouchDB is the ability to
> combine view results using boolean combinations (e.g. I want all the
> doc ids of documents in view1 AND in view2 or all the doc ids of
> documents in view1 OR view2 etc.), including temporary views.
> I suspect this would be best implemented in Erlang, though perhaps the
> proposal for enhancing the external view servers or better Lucene
> integration is the better approach.

This is a good proposal. Versions of it have been discussed on the
list and IRC on and off for a while.

Views have a by-docid index, which means docid intersections can
happen in constant space as long as startkey/endkey aren't used.

Chris Anderson

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