query Argument
Parameters
value
Use the specified query argument as an aggregate key. Each distinct value for the named query argument contributes to the aggregation instance. If you use a single query argument as your custom key, then each value fully defines an aggregation instance.
Parameters
argument
Use the specified query argument as an aggregate key. Each distinct value for the named query argument contributes to the aggregation instance. If you use a single query argument as your custom key, then each value fully defines an aggregation instance.