Function addAggregate

lib/AggregateFunctions.js:178–184

(proto, fun, builder)

}

function addAggregate(proto, fun, builder) {
  if (Array.isArray(fun)) {
    proto[fun[0].toLowerCase()] = builder((fun[1] || fun[0]).toLowerCase());
  } else {
    proto[fun.toLowerCase()] = builder(fun.toLowerCase());
  }
}

function aggregateAlias(fun, fields) {
  return fun + (fields && fields.length ? "_" + fields.join("_") : "");