// -------------------------------------------------------------------------------------
final ProjectOperator projFirstOut = new ProjectOperator(new ColumnReference(_sc, 1),
new ValueSpecification(_sc, "1"));
final ProjectOperator projSecondOut = new ProjectOperator(new int[] { 1, 2 });
final AggregationStorage secondJoinStorage = new AggregationStorage(
new AggregateCountOperator(conf).setGroupByColumns(Arrays.asList(0)), _lc, conf,
false);
final List<Integer> hashIndexes = Arrays.asList(0);
final EquiJoinComponent CUSTOMER_ORDERSjoin = new EquiJoinComponent(relationCustomer,