code: @Override
      VoltXMLElement voltGetStatementXML(Session session)
      throws org.hsqldb_voltpatches.HSQLInterface.HSQLParseException
      {
          return voltGetXMLExpression(queryExpression, parameters, session);
      }
docs: VoltDB added method to get a non-catalog-dependent
  representation of this HSQLDB object.
  @param session The current Session object may be needed to resolve
  some names.
  @return XML, correctly indented, representing this object.
  @throws org.hsqldb_voltpatches.HSQLInterface.HSQLParseException