void SortDate(
	int left,
	int right,
	int columnIndex
)

Sub SortDate ( 
	left As Integer,
	right As Integer,
	columnIndex As Integer
)

void SortDate(
	int left, 
	int right, 
	int columnIndex
)

abstract SortDate : 
        left : int * 
        right : int * 
        columnIndex : int -> unit