code: void insertResult(PersistentStore store, Result ins) {
  
          RowSetNavigator nav = ins.initialiseNavigator();
  
          while (nav.hasNext()) {
              Object[] data = nav.getNext();
              Object[] newData =
                  (Object[]) ArrayUtil.resizeArrayIfDifferent(data,
                      getColumnCount());
  
              insertData(store, newData);
          }
      }
docs: Used for subquery inserts. No checks. No identity
  columns.