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