inter_span_span intersection_set_value intersection_span_value intersection_spanset_value minus_set_value minus_span_value minus_spanset_value minus_value_set minus_value_span minus_value_spanset union_set_value union_span_value union_spanset_value

minus_spanset_value() SpanSet * minus_spanset_value ( const SpanSet *  ss, Datum  d, meosType  basetype  ) Return the difference of a span set and a value.