final List<Integer> hashRegion = Arrays.asList(0);
final SelectOperator selectionRegion = new SelectOperator(new ComparisonPredicate(
new ColumnReference(_sc, 1), new ValueSpecification(_sc, REGION_NAME)));
final ProjectOperator projectionRegion = new ProjectOperator(new int[] { 0 });
final DataSourceComponent relationRegion = new DataSourceComponent("REGION", dataPath
+ "region" + extension, _queryPlan).setHashIndexes(hashRegion)
.addOperator(selectionRegion).addOperator(projectionRegion);
// -------------------------------------------------------------------------------------
final List<Integer> hashNation = Arrays.asList(2);
final ProjectOperator projectionNation = new ProjectOperator(new int[] { 0, 1, 2 });
final DataSourceComponent relationNation = new DataSourceComponent("NATION", dataPath
+ "nation" + extension, _queryPlan).setHashIndexes(hashNation).addOperator(
projectionNation);
// -------------------------------------------------------------------------------------
final List<Integer> hashRN = Arrays.asList(0);
final ProjectOperator projectionRN = new ProjectOperator(new int[] { 1, 2 });
final EquiJoinComponent R_Njoin = new EquiJoinComponent(relationRegion, relationNation,
_queryPlan).setHashIndexes(hashRN).addOperator(projectionRN);
// -------------------------------------------------------------------------------------
final List<Integer> hashSupplier = Arrays.asList(1);
final ProjectOperator projectionSupplier = new ProjectOperator(new int[] { 0, 3 });
final DataSourceComponent relationSupplier = new DataSourceComponent("SUPPLIER", dataPath
+ "supplier" + extension, _queryPlan).setHashIndexes(hashSupplier).addOperator(
projectionSupplier);
// -------------------------------------------------------------------------------------
final List<Integer> hashRNS = Arrays.asList(2);
final ProjectOperator projectionRNS = new ProjectOperator(new int[] { 0, 1, 2 });
final EquiJoinComponent R_N_Sjoin = new EquiJoinComponent(R_Njoin, relationSupplier,
_queryPlan).setHashIndexes(hashRNS).addOperator(projectionRNS);
// -------------------------------------------------------------------------------------
final List<Integer> hashLineitem = Arrays.asList(1);
final ProjectOperator projectionLineitem = new ProjectOperator(new int[] { 0, 2, 5, 6 });
final DataSourceComponent relationLineitem = new DataSourceComponent("LINEITEM", dataPath
+ "lineitem" + extension, _queryPlan).setHashIndexes(hashLineitem).addOperator(
projectionLineitem);
// -------------------------------------------------------------------------------------
final List<Integer> hashRNSL = Arrays.asList(0, 2);
final ProjectOperator projectionRNSL = new ProjectOperator(new int[] { 0, 1, 3, 4, 5 });
final EquiJoinComponent R_N_S_Ljoin = new EquiJoinComponent(R_N_Sjoin, relationLineitem,
_queryPlan).setHashIndexes(hashRNSL).addOperator(projectionRNSL);
// -------------------------------------------------------------------------------------
final List<Integer> hashCustomer = Arrays.asList(0);
final ProjectOperator projectionCustomer = new ProjectOperator(new int[] { 0, 3 });
final DataSourceComponent relationCustomer = new DataSourceComponent("CUSTOMER", dataPath
+ "customer" + extension, _queryPlan).setHashIndexes(hashCustomer).addOperator(
projectionCustomer);
// -------------------------------------------------------------------------------------
final List<Integer> hashOrders = Arrays.asList(1);
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, 1 });
final DataSourceComponent relationOrders = new DataSourceComponent("ORDERS", dataPath
+ "orders" + extension, _queryPlan).setHashIndexes(hashOrders)
.addOperator(selectionOrders).addOperator(projectionOrders);
// -------------------------------------------------------------------------------------
final List<Integer> hashCO = Arrays.asList(0, 1);
final ProjectOperator projectionCO = new ProjectOperator(new int[] { 1, 2 });
final EquiJoinComponent C_Ojoin = new EquiJoinComponent(relationCustomer, relationOrders,
_queryPlan).setHashIndexes(hashCO).addOperator(projectionCO);
// -------------------------------------------------------------------------------------
final List<Integer> hashRNSLCO = Arrays.asList(0);
final ProjectOperator projectionRNSLCO = new ProjectOperator(new int[] { 1, 3, 4 });
final EquiJoinComponent R_N_S_L_C_Ojoin = new EquiJoinComponent(R_N_S_Ljoin, C_Ojoin,
_queryPlan).setHashIndexes(hashRNSLCO).addOperator(projectionRNSLCO);
// -------------------------------------------------------------------------------------