<function_specification xmlns="http://www.sqlparser.com/xml/ansi2003">
  <kw_function>{1,1}</kw_function>
  <schema_qualified_routine_name>{1,1}</schema_qualified_routine_name>
  <sql_parameter_declaration_list>{1,1}</sql_parameter_declaration_list>
  <returns_clause>{1,1}</returns_clause>
  <routine_characteristics>{1,1}</routine_characteristics>
  <dispatch_clause>{0,1}</dispatch_clause>
</function_specification>

<xs:element name="function_specification">
  <xs:complexType>
    <xs:sequence>
      <xs:element ref="kw_function"/>
      <xs:element ref="schema_qualified_routine_name"/>
      <xs:element ref="sql_parameter_declaration_list"/>
      <xs:element ref="returns_clause"/>
      <xs:element ref="routine_characteristics"/>
      <xs:element ref="dispatch_clause" minOccurs="0"/>
    </xs:sequence>
  </xs:complexType>
</xs:element>