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