<xs:group name="additional_common_elements">
  <xs:annotation>
    <xs:documentation xml:lang="en">Additional common elements. this group is used for documentation only, not used in XML file.</xs:documentation>
  </xs:annotation>
  <xs:all>
    <xs:element ref="interval_qualifier"/>
    <xs:element ref="language_clause"/>
    <xs:element ref="path_specification"/>
    <xs:element ref="routine_invocation"/>
    <xs:element ref="character_set_specification"/>
    <xs:element ref="specific_routine_designator"/>
    <xs:element ref="collate_clause"/>
    <xs:element ref="constraint_name_definition"/>
    <xs:element ref="constraint_characteristics"/>
    <xs:element ref="aggregate_function"/>
    <xs:element ref="sort_specification_list"/>
  </xs:all>
</xs:group>