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

union_set_value() Set * union_set_value ( const Set *  s, Datum  d, meosType  basetype  ) Return the union of a value and a set.