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_span_span() Datum distance_span_span ( const Span *  s1, const Span *  s2  ) Return the distance between two spans as a double. Parameters [in] s1,s2 Spans Returns On error return -1 @csqlfn Distance_span_span()