view rows should be able to include _rev
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Key: COUCHDB-273
URL: https://issues.apache.org/jira/browse/COUCHDB-273
Project: CouchDB
Issue Type: Improvement
Components: JavaScript View Server
Reporter: Louis Gerbarg
In our project we use maps in order to group objects, but do not generate any
interesting any meaningful data to return from the mapping function aside from
the sorted ordering. Our client basically does a GET against the view to
determine what objects are in for a key. It has a local cache, and currently it
then HEADs every object returned by that view to see if the objects need to be
reloaded. If the rev was included in the row that would be unnecessary.
Currently we are intending to return { "rev" : doc._rev } out of the mapping
function, but the seems a bit clumsy.
Jan suggested in irc that maybe the correct thing to do is to remove the "_id"
from the roes by default and add both "_rev" and "_id" with an option
(include_meta=true). This approach seems good to me, since I suspect people who
are using views to manipulate the data in interesting ways generally don't need
the object ids, and people who are using views primarily to organize objects
almost always need the rev in addition to the object id.
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