in lib/nano.js [1136:1145]
function partitionedView (partition, ddoc, viewName, opts, callback) {
if (missing(partition, ddoc, viewName)) {
return callbackOrRejectError(callback)
}
return relax({
db: dbName,
path: '_partition/' + encodeURIComponent(partition) + '/_design/' + ddoc + '/_view/' + viewName,
qs: opts
}, callback)
}