Examples of considerSortAvoidancePath()


Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

    ** because it considerSortAvoidancePath() would not be
    ** set if there cost were not set.
    */
    if (requiredRowOrdering != null)
    {
      if (pullMe.considerSortAvoidancePath())
      {
        AccessPath ap = pullMe.getBestSortAvoidancePath();
        double     prevEstimatedCost = 0.0d;

        /*
 
View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

      currentCost.setCost(
        currentCost.getEstimatedCost() + ce.getEstimatedCost(),
        ce.rowCount(),
        ce.singleScanRowCount());

      if (curOpt.considerSortAvoidancePath() &&
        requiredRowOrdering != null)
      {
        /* Add the cost for the sort avoidance path, if there is one */
        ce = curOpt.getBestSortAvoidancePath().getCostEstimate();

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

      }

      if (optimizerTrace)
      {
        trace(TOTAL_COST_NON_SA_PLAN, 0, 0, 0.0, null);
        if (curOpt.considerSortAvoidancePath())
        {
          trace(TOTAL_COST_SA_PLAN, 0, 0, 0.0, null);
        }
      }
       
View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

        ** This may be the best sort-avoidance plan if there is a
        ** required row ordering, and we are to consider a sort
        ** avoidance path on the last Optimizable in the join order.
        */
        if (requiredRowOrdering != null &&
          curOpt.considerSortAvoidancePath())
        {
          if (requiredRowOrdering.sortRequired(
              bestRowOrdering, optimizableList) ==
                RequiredRowOrdering.NOTHING_REQUIRED)
          {
View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

        ** because it considerSortAvoidancePath() would not be
        ** set if there cost were not set.
        */
        if (requiredRowOrdering != null)
        {
          if (pullMe.considerSortAvoidancePath())
          {
            AccessPath ap = pullMe.getBestSortAvoidancePath();
            double     prevEstimatedCost = 0.0d;

            /*
 
View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

      currentCost.setCost(
        currentCost.getEstimatedCost() + ce.getEstimatedCost(),
        ce.rowCount(),
        ce.singleScanRowCount());

      if (curOpt.considerSortAvoidancePath() &&
        requiredRowOrdering != null)
      {
        /* Add the cost for the sort avoidance path, if there is one */
        ce = curOpt.getBestSortAvoidancePath().getCostEstimate();

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

      }

      if (optimizerTrace)
      {
        trace(TOTAL_COST_NON_SA_PLAN, 0, 0, 0.0, null);
        if (curOpt.considerSortAvoidancePath())
        {
          trace(TOTAL_COST_SA_PLAN, 0, 0, 0.0, null);
        }
      }
       
View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

        ** This may be the best sort-avoidance plan if there is a
        ** required row ordering, and we are to consider a sort
        ** avoidance path on the last Optimizable in the join order.
        */
        if (requiredRowOrdering != null &&
          curOpt.considerSortAvoidancePath())
        {
          if (requiredRowOrdering.sortRequired(bestRowOrdering) ==
                  RequiredRowOrdering.NOTHING_REQUIRED)
          {
            if (optimizerTrace)
View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

    ** because it considerSortAvoidancePath() would not be
    ** set if there cost were not set.
    */
    if (requiredRowOrdering != null)
    {
      if (pullMe.considerSortAvoidancePath())
      {
        AccessPath ap = pullMe.getBestSortAvoidancePath();
        double     prevEstimatedCost = 0.0d;

        /*
 
View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.Optimizable.considerSortAvoidancePath()

      currentCost.setCost(
        currentCost.getEstimatedCost() + ce.getEstimatedCost(),
        ce.rowCount(),
        ce.singleScanRowCount());

      if (curOpt.considerSortAvoidancePath() &&
        requiredRowOrdering != null)
      {
        /* Add the cost for the sort avoidance path, if there is one */
        ce = curOpt.getBestSortAvoidancePath().getCostEstimate();

View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.