code: public Map<Integer, Pair<ExecutionReference, ExecutableFlow>> fetchUnfinishedFlowsMetadata()
        throws ExecutorManagerException {
      try {
        return this.dbOperator.query(FetchUnfinishedFlowsMetadata.FETCH_UNFINISHED_FLOWS_METADATA,
            new FetchUnfinishedFlowsMetadata());
      } catch (final SQLException e) {
        throw new ExecutorManagerException("Error fetching unfinished flows metadata", e);
      }
    }
docs: Fetch unfinished flows similar to {@link #fetchUnfinishedFlows}, excluding flow data.
  
  @return unfinished flows map
  @throws ExecutorManagerException the executor manager exception