SelectOperator selectionRegion = new SelectOperator(new ComparisonPredicate(
new ColumnReference(_sc, 1), new ValueSpecification(_sc, REGION_NAME)));
ProjectOperator projectionRegion = new ProjectOperator(new int[] { 0 });
DataSourceComponent relationRegion = new DataSourceComponent("REGION", dataPath + "region"
+ extension, _queryPlan).setHashIndexes(hashRegion).addOperator(selectionRegion)
.addOperator(projectionRegion);
//-------------------------------------------------------------------------------------
List<Integer> hashNation = Arrays.asList(2);
ProjectOperator projectionNation = new ProjectOperator(new int[] { 0, 1, 2 });
DataSourceComponent relationNation = new DataSourceComponent("NATION", dataPath + "nation"
+ extension, _queryPlan).setHashIndexes(hashNation).addOperator(projectionNation);
//-------------------------------------------------------------------------------------
List<Integer> hashRN = Arrays.asList(0);
ProjectOperator projectionRN = new ProjectOperator(new int[] { 1, 2 });
ColumnReference colR = new ColumnReference(_ic, 0);
ColumnReference colN = new ColumnReference(_ic, 2);
ComparisonPredicate R_N_comp = new ComparisonPredicate(ComparisonPredicate.EQUAL_OP, colR,
colN);
Component R_Njoin = ThetaJoinComponentFactory
.createThetaJoinOperator(Theta_JoinType, relationRegion, relationNation, _queryPlan)
.setHashIndexes(hashRN).addOperator(projectionRN).setJoinPredicate(R_N_comp);
//-------------------------------------------------------------------------------------
List<Integer> hashSupplier = Arrays.asList(1);
ProjectOperator projectionSupplier = new ProjectOperator(new int[] { 0, 3 });
DataSourceComponent relationSupplier = new DataSourceComponent("SUPPLIER", dataPath
+ "supplier" + extension, _queryPlan).setHashIndexes(hashSupplier).addOperator(
projectionSupplier);
//-------------------------------------------------------------------------------------
List<Integer> hashRNS = Arrays.asList(2);
ProjectOperator projectionRNS = new ProjectOperator(new int[] { 0, 1, 2 });
ColumnReference colR_N = new ColumnReference(_ic, 0);
ColumnReference colS = new ColumnReference(_ic, 1);
ComparisonPredicate R_N_S_comp = new ComparisonPredicate(ComparisonPredicate.EQUAL_OP,
colR_N, colS);
Component R_N_Sjoin = ThetaJoinComponentFactory
.createThetaJoinOperator(Theta_JoinType, R_Njoin, relationSupplier, _queryPlan)
.setHashIndexes(hashRNS).addOperator(projectionRNS).setJoinPredicate(R_N_S_comp);
//-------------------------------------------------------------------------------------
List<Integer> hashLineitem = Arrays.asList(1);
ProjectOperator projectionLineitem = new ProjectOperator(new int[] { 0, 2, 5, 6 });
DataSourceComponent relationLineitem = new DataSourceComponent("LINEITEM", dataPath
+ "lineitem" + extension, _queryPlan).setHashIndexes(hashLineitem).addOperator(
projectionLineitem);
//-------------------------------------------------------------------------------------
List<Integer> hashRNSL = Arrays.asList(0, 2);
ColumnReference colR_N_S = new ColumnReference(_ic, 2);
ColumnReference colL = new ColumnReference(_ic, 1);
ComparisonPredicate R_N_S_L_comp = new ComparisonPredicate(ComparisonPredicate.EQUAL_OP,
colR_N_S, colL);
ProjectOperator projectionRNSL = new ProjectOperator(new int[] { 0, 1, 3, 5, 6 });
Component R_N_S_Ljoin = ThetaJoinComponentFactory
.createThetaJoinOperator(Theta_JoinType, R_N_Sjoin, relationLineitem, _queryPlan)
.setHashIndexes(hashRNSL).addOperator(projectionRNSL)
.setJoinPredicate(R_N_S_L_comp);
//-------------------------------------------------------------------------------------
List<Integer> hashCustomer = Arrays.asList(0);
ProjectOperator projectionCustomer = new ProjectOperator(new int[] { 0, 3 });
DataSourceComponent relationCustomer = new DataSourceComponent("CUSTOMER", dataPath
+ "customer" + extension, _queryPlan).setHashIndexes(hashCustomer).addOperator(
projectionCustomer);
//-------------------------------------------------------------------------------------
List<Integer> hashOrders = Arrays.asList(1);
SelectOperator selectionOrders = new SelectOperator(new BetweenPredicate(
new ColumnReference(_dc, 4), true, new ValueSpecification(_dc, _date1), false,
new ValueSpecification(_dc, _date2)));
ProjectOperator projectionOrders = new ProjectOperator(new int[] { 0, 1 });
DataSourceComponent relationOrders = new DataSourceComponent("ORDERS", dataPath + "orders"
+ extension, _queryPlan).setHashIndexes(hashOrders).addOperator(selectionOrders)
.addOperator(projectionOrders);
//-------------------------------------------------------------------------------------
List<Integer> hashCO = Arrays.asList(0, 1);