Package plan_runner.query_plans

Source Code of plan_runner.query_plans.ThetaHyracksPlan

package plan_runner.query_plans;

import java.util.Arrays;
import java.util.List;
import java.util.Map;

import org.apache.log4j.Logger;

import plan_runner.components.Component;
import plan_runner.components.DataSourceComponent;
import plan_runner.components.ThetaJoinComponentFactory;
import plan_runner.components.ThetaJoinDynamicComponentAdvisedEpochs;
import plan_runner.components.ThetaJoinStaticComponent;
import plan_runner.conversion.IntegerConversion;
import plan_runner.expressions.ColumnReference;
import plan_runner.operators.AggregateCountOperator;
import plan_runner.operators.ProjectOperator;
import plan_runner.predicates.ComparisonPredicate;

public class ThetaHyracksPlan {
  private static Logger LOG = Logger.getLogger(ThetaHyracksPlan.class);

  private final QueryPlan _queryPlan = new QueryPlan();

  private static final IntegerConversion _ic = new IntegerConversion();

  public ThetaHyracksPlan(String dataPath, String extension, Map conf) {
    final int Theta_JoinType = ThetaQueryPlansParameters.getThetaJoinType(conf);
    // -------------------------------------------------------------------------------------
    // start of query plan filling
    final ProjectOperator projectionCustomer = new ProjectOperator(new int[] { 0, 6 });
    final List<Integer> hashCustomer = Arrays.asList(0);
    final DataSourceComponent relationCustomer = new DataSourceComponent("CUSTOMER", dataPath
        + "customer" + extension, _queryPlan).addOperator(projectionCustomer)
        .setHashIndexes(hashCustomer);

    // -------------------------------------------------------------------------------------
    final ProjectOperator projectionOrders = new ProjectOperator(new int[] { 1 });
    final List<Integer> hashOrders = Arrays.asList(0);
    final DataSourceComponent relationOrders = new DataSourceComponent("ORDERS", dataPath
        + "orders" + extension, _queryPlan).addOperator(projectionOrders).setHashIndexes(
        hashOrders);

    // -------------------------------------------------------------------------------------

    final ColumnReference colCustomer = new ColumnReference(_ic, 0);
    final ColumnReference colOrders = new ColumnReference(_ic, 0);
    final ComparisonPredicate comp = new ComparisonPredicate(ComparisonPredicate.EQUAL_OP,
        colCustomer, colOrders);
   
    final AggregateCountOperator agg = new AggregateCountOperator(conf)
        .setGroupByColumns(Arrays.asList(1));
   
    Component lastJoiner = ThetaJoinComponentFactory
        .createThetaJoinOperator(Theta_JoinType, relationCustomer, relationOrders,
            _queryPlan).addOperator(agg).setJoinPredicate(comp).setContentSensitiveThetaJoinWrapper(_ic);

    //lastJoiner.setPrintOut(false);

    // -------------------------------------------------------------------------------------

  }

  public QueryPlan getQueryPlan() {
    return _queryPlan;
  }

}
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