.addOperator(selectionLineitem).addOperator(projectionLineitem);
// -------------------------------------------------------------------------------------
final List<Integer> hashOrders = Arrays.asList(0);
final SelectOperator selectionOrders = new SelectOperator(new BetweenPredicate(
new ColumnReference(_dc, 4), true, new ValueSpecification(_dc, _date1), false,
new ValueSpecification(_dc, _date2)));
final ProjectOperator projectionOrders = new ProjectOperator(new int[] { 0, 5 });