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