datum_distance distance_base_tnumber distance_tnumber_base distance_tnumber_base_internal distance_tnumber_tnumber distance_tnumber_tnumber_internal NAD_base_tnumber NAD_tbox_tbox NAD_tbox_tbox_internal NAD_tbox_tnumber NAD_tnumber_base NAD_tnumber_base_internal NAD_tnumber_tbox NAD_tnumber_tbox_internal NAD_tnumber_tnumber

datum_distance() static Datum datum_distance ( Datum  l, Datum  r, Oid  typel, Oid  typer  ) static Returns the distance between the two numbers.