package plan_runner.query_plans;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
import plan_runner.components.DataSourceComponent;
import plan_runner.components.EquiJoinComponent;
import plan_runner.components.OperatorComponent;
import plan_runner.conversion.DateConversion;
import plan_runner.conversion.IntegerConversion;
import plan_runner.conversion.TypeConversion;
import plan_runner.expressions.ColumnReference;
import plan_runner.expressions.DateSum;
import plan_runner.expressions.ValueExpression;
import plan_runner.expressions.ValueSpecification;
import plan_runner.operators.AggregateCountOperator;
import plan_runner.operators.AggregateOperator;
import plan_runner.operators.DistinctOperator;
import plan_runner.operators.ProjectOperator;
import plan_runner.operators.SelectOperator;
import plan_runner.predicates.BetweenPredicate;
import plan_runner.predicates.ComparisonPredicate;
/* TPC_H Query 4 - Order Priority Checking
SELECT O_ORDERPRIORITY, COUNT(*) AS ORDER_COUNT FROM ORDERS
WHERE O_ORDERDATE >= '1993-07-01' AND O_ORDERDATE < dateadd(mm,3, cast('1993-07-01' as date))
AND EXISTS (SELECT * FROM LINEITEM WHERE L_ORDERKEY = O_ORDERKEY AND L_COMMITDATE < L_RECEIPTDATE)
GROUP BY O_ORDERPRIORITY
ORDER BY O_ORDERPRIORITY
*/
public class TPCH4Plan {
private static Logger LOG = Logger.getLogger(TPCH4Plan.class);
private static final TypeConversion<Date> _dc = new DateConversion();
private static final IntegerConversion _ic = new IntegerConversion();
private final QueryPlan _queryPlan = new QueryPlan();
// query variables
private static Date _date1, _date2;
private static void computeDates() {
// date2= date1 + 3 months
final String date1Str = "1993-07-01";
final int interval = 3;
final int unit = Calendar.MONTH;
// setting _date1
_date1 = _dc.fromString(date1Str);
// setting _date2
ValueExpression<Date> date1Ve, date2Ve;
date1Ve = new ValueSpecification<Date>(_dc, _date1);
date2Ve = new DateSum(date1Ve, unit, interval);
_date2 = date2Ve.eval(null);
// tuple is set to null since we are computing based on constants
}
public TPCH4Plan(String dataPath, String extension, Map conf) {
computeDates();
// -------------------------------------------------------------------------------------
final List<Integer> hashLineitem = Arrays.asList(0);
final SelectOperator selectionLineitem = new SelectOperator(new ComparisonPredicate(
ComparisonPredicate.LESS_OP, new ColumnReference(_dc, 11), new ColumnReference(_dc,
12)));
final ProjectOperator projectionLineitem = new ProjectOperator(new int[] { 0 });
final DataSourceComponent relationLineitem = new DataSourceComponent("LINEITEM", dataPath
+ "lineitem" + extension, _queryPlan).setHashIndexes(hashLineitem)
.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 });
final DataSourceComponent relationOrders = new DataSourceComponent("ORDERS", dataPath
+ "orders" + extension, _queryPlan).setHashIndexes(hashOrders)
.addOperator(selectionOrders).addOperator(projectionOrders);
// -------------------------------------------------------------------------------------
final EquiJoinComponent O_Ljoin = new EquiJoinComponent(relationOrders, relationLineitem,
_queryPlan).setHashIndexes(Arrays.asList(1));
// -------------------------------------------------------------------------------------
// set up aggregation function on a separate StormComponent(Bolt)
final DistinctOperator distinctOp = new DistinctOperator(conf, new int[] { 0 });
final AggregateOperator aggOp = new AggregateCountOperator(conf).setGroupByColumns(
Arrays.asList(1)).setDistinct(distinctOp);
new OperatorComponent(O_Ljoin, "FINAL_RESULT", _queryPlan).addOperator(aggOp);
// -------------------------------------------------------------------------------------
}
public QueryPlan getQueryPlan() {
return _queryPlan;
}
}