Function Pivot

docs/app/js/sanddance-app.js:118072–118074

* Aggregate and pivot selected field values to become new fields. * This operator is useful to construction cross-tabulations. * @constructor * @param {Array } [params.groupby] - An array of accessors * to groupby. These fields act just like groupby fields of an Aggregate tr

(params)

 *  number of pivoted fields to generate. The pivoted field names are sorted in
 *  ascending order prior to enforcing the limit.
 */ function Pivot(params) {
    Aggregate.call(this, params);
}
Pivot.Definition = {
    "type": "Pivot",
    "metadata": {