mapreduce - Using different keys for map & reduce -


i have current couch db stores activities happen on different nodes. i'm getting count of how many activities have happened on each node using following:

map:

function(doc) {   emit(doc.node._id, 1); }

reduce:

_sum

this works great! now, i'd allow filterable timestamp. first thought change map this:

function(doc) {   emit([doc.node._id, doc.created], 1); }

however that, of course, added created flag key, reduce doesn't work how wanted anymore.

is there way can map node._id , created, reduce node._id?

edit: forgot mention, looked using group_level, works 1 key, , need able pass multiple keys index.


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