final case classSortOrdering[TS1](sortKeys: slamdata.Predef.Set[TS1], sortOrder: DesiredSortOrder, unique: slamdata.Predef.Boolean) extends Product with Serializable
final case classSortState[TS1](bucket: slamdata.Predef.Option[TS1], orderings: slamdata.Predef.List[SortOrdering[TS1]]) extends Product with Serializable