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Date: Thu, 28 Mar 2013 01:39:16 +0000 (UTC)
From: "Benoit Chesneau (JIRA)" <jira@apache.org>
To: dev@couchdb.apache.org
Message-ID: <JIRA.12639366.1364400902821.67895.1364434756675@arcas>
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Subject: [jira] [Commented] (COUCHDB-1737) _changes feed for views
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    [ https://issues.apache.org/jira/browse/COUCHDB-1737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13615965#comment-13615965 ] 

Benoit Chesneau commented on COUCHDB-1737:
------------------------------------------

[~klaus_trainer] For now the view filter in couchdb is passing the map functions on all the changes just like a filter function so it's not really efficient on a big number of document , especially when you start from 0.

The feature asked here would notify about changes in the index, aka "real" view changes and all changes wil be indexed just like a db.
                
> _changes feed for views
> -----------------------
>
>                 Key: COUCHDB-1737
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1737
>             Project: CouchDB
>          Issue Type: Improvement
>            Reporter: Dave Cottlehuber
>            Assignee: Benoit Chesneau
>              Labels: couchdb, erlang, gsoc2013
>
> It should be possible to subscribe to view changes the same way we can
> subscribe to database changes. This will enable many useful things,
> chained map-reduce being a notable one.

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