couchdb/app/deliveries/_design/replication/filters/by-driver-and-date
function (doc, req) {
var startDate = new Date(req.query.date);
return ((doc.doc_type && (doc.doc_type === 'dailyDelivery' || doc.doc_type === 'kpi'))
&& (req.query.driverId === doc.driverID)
&& (startDate <= new Date(doc.date)));
}