code: func (m *GormIterationRepository) LoadChildren(ctx context.Context, parentIterationID uuid.UUID) ([]Iteration, error) {
  	defer goa.MeasureSince([]string{"goa", "db", "iteration", "loadchildren"}, time.Now())
  	parentIteration, err := m.Load(ctx, parentIterationID)
  	if err != nil {
  		return nil, errors.NewNotFoundError("iteration", parentIterationID.String())
  	}
  	var objs []Iteration
  
  	err = m.db.Where(fmt.Sprintf("path ~ '%s.*{1,}'", parentIteration.Path.Convert())).Order("updated_at").Find(&objs).Error
  	if err != nil {
  		return nil, err
  	}
  	return objs, nil
  }
docs: // LoadChildren executes - select * from iterations where path <@ 'parent_path.parent_id';