distance_set_set distance_set_value distance_span_span distance_span_value distance_spanset_span distance_spanset_spanset distance_spanset_value distance_value_value

distance_value_value() Datum distance_value_value ( Datum  l, Datum  r, meosType  type  ) Return the distance between two values. Parameters [in] l,r Values [in] type Type of the values Returns On error return -1