the field name
(sortByFieldCount: StringAdd).self
(sortByFieldCount: StringFormat).self
(Since version 0.20.3) No longer a case class
(Since version 0.20.3) No longer a case class
(sortByFieldCount: ArrowAssoc[SortByFieldCount]).x
(Since version 2.10.0) Use leftOfArrow
instead
(sortByFieldCount: Ensuring[SortByFieldCount]).x
(Since version 2.10.0) Use resultOfEnsuring
instead
The $sortByCount aggregation stage.
MongoDB 3.4