Defines arbitrary SQL statement. Note that SQL statement can be customized for different SQL dialects per DbAdapter class. If no adapter-specific statement is found, the one with no adapter label is used by default.
<xs:element name="sql"><xs:annotation><xs:documentation>Defines arbitrary SQL statement. Note that SQL statement can be customized for different SQL dialects per DbAdapter class. If no adapter-specific statement is found, the one with no adapter label is used by default.</xs:documentation></xs:annotation><xs:complexType><xs:simpleContent><xs:extension base="xs:string"><xs:attribute name="adapter-class" type="xs:string"/></xs:extension></xs:simpleContent></xs:complexType></xs:element>