grouped(by:_:_:)
Creates a grouping from three columns of different types.
Declaration
func grouped<T0, T1, T2>(by column0: ColumnID<T0>, _ column1: ColumnID<T1>, _ column2: ColumnID<T2>) -> some RowGroupingProtocol where T0 : Hashable, T1 : Hashable, T2 : Hashable
Parameters
- column0:
A column identifier.
- column1:
A second column identifier.
- column2:
A third column identifier.