grouped(by:_:)
Creates a grouping from two columns of different types.
Declaration
func grouped<T0, T1>(by column0: ColumnID<T0>, _ column1: ColumnID<T1>) -> some RowGroupingProtocol where T0 : Hashable, T1 : Hashable
Parameters
- column0:
A column identifier.
- column1:
A second column identifier.