code: protected Split startSplit() {
  		Stopwatch stopwatch = SimonManager.getStopwatch(sqlCmdLabel + Manager.HIERARCHY_DELIMITER + sqlNormalizer.getNormalizedSql().hashCode());
  		if (stopwatch.getNote() == null) {
  			stopwatch.setNote(sqlNormalizer.getNormalizedSql());
  		}
  		return stopwatch.start();
  	}
docs: Starts the split for the SQL specific stopwatch, sets the note and returns the split.
  Used in the statment and prepared statement classes to measure runs of "execute" methods.
  
  @return split for the execution of the specific SQL command