code: @Override
    public ORecordIteratorClusters<REC> setLiveUpdated(boolean iLiveUpdated) {
      super.setLiveUpdated(iLiveUpdated);
  
      // SET THE UPPER LIMIT TO -1 IF IT'S ENABLED
      lastClusterPosition = iLiveUpdated ? -1 : database.countClusterElements(current.clusterId);
  
      if (iLiveUpdated) {
        firstClusterPosition = -1;
        lastClusterPosition = -1;
      } else {
        updateClusterRange();
      }
  
      return this;
    }
docs: Tell to the iterator that the upper limit must be checked at every cycle. Useful when concurrent deletes or additions change
  the size of the cluster while you're browsing it. Default is false.
  
  @param iLiveUpdated
  True to activate it, otherwise false (default)
  @see #isLiveUpdated()