/*           using (sql) when OnDemand needs to drop a table          */
/*            *created  -> 0 exit did not drop the table,             */
/*                           OnDemand needs to drop the table         */
/*                           using (sql), which can be left unchanged */
/*                           or modified by the exit                  */
/*            *created  -> 1 exit dropped the table                   */
/*                                                                    */
/*        7) OnDemand will invoke the exit with action == 7           */