<ordering_form xmlns="http://www.sqlparser.com/xml/ansi2003"> <equals_ordering_form>{1,1}</equals_ordering_form> <full_ordering_form>{1,1}</full_ordering_form> </ordering_form>
<xs:element name="ordering_form"> <xs:complexType> <xs:choice> <xs:element ref="equals_ordering_form"/> <xs:element ref="full_ordering_form"/> </xs:choice> </xs:complexType> </xs:element>