combine_previous_sketch(grouping, map) – Returns a map of the combined keys of previous calls to this

collect_list(expr) – Collects and returns a list of non-unique elements. Platforms: WhereOS, Spark, Hive Class:

collect_max(x, val, n) – Returns an map of the max N numeric values in the

collect_set(expr) – Collects and returns a set of unique elements. Platforms: WhereOS, Spark, Hive Class:

collect(x) – Returns an array of all the elements in the aggregation group Platforms: WhereOS,

chi2(array observed, array expected) – Returns chi2_val and p_val of each columns as Platforms: WhereOS,