Using reduce with a composite key in couchdb view returns no result on GET -

i have couchdb view following map function:

function(doc) {   if (doc.date_of_operation) {     date_triple = doc.date_of_operation.split("/");     d = new date(date_triple[2], date_triple[1]-1, date_triple[0], 0, 0, 0, 0)     emit([d, doc.name], 1);   } } 

when issue request this, whole view's data (2.8mb):

$ curl -x http://somehost:5984/ops-db/_design/ops-views/_view/counts  % total    % received % xferd  average speed   time    time     time  current                                  dload  upload   total   spent    left  speed 100 2751k    0 2751k    0     0  67456      0 --:--:--  0:00:41 --:--:--  739k 

however, when add reduce function:

function (key, values, rereduce) {   return sum(values); } 

i no longer data when using curl:

$ curl -x http://somehost:5984/ops-db/_design/ops-views/_view/counts  % total    % received % xferd  average speed   time    time     time  current                                  dload  upload   total   spent    left  speed 100    42    0    42    0     0   7069      0 --:--:-- --:--:-- --:--:--  8400 

the result looks this:

{"rows":[ {"key":null,"value":27065} ]} 

this view & map & reduce functions added using futon interface , when reduce checkbox checked there, 1 row every 'date, name' pairs values accumulated pair. changes when queried through get?

when calling view through curl can try passing in necessary parameters triggering reduce , grouping

e.g.

explicitly tell couchdb run reduce function

$ curl -x http://somehost:5984/ops-db/_design/ops-views/_view/counts?reduce=true

or group , group_level params

you can read more on available options here (under querying options section)