List of legalJoinOrder() Examples

Examples of legalJoinOrder()

org.apache.derby.iapi.sql.compile.Optimizable.legalJoinOrder()
Can this Optimizable appear at the current location in the join order. In other words, have the Optimizable's dependencies been satisfied? @param assignedTableMap The tables that have been placed so far in the join order. @return Where or not this Optimizable can appear at the current location in the join order.

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

        int lookPos = numOptimizables;
        int lastSwappedOpt = -1;


        Optimizable nextOpt;
        for (nextOpt = optimizableList.getOptimizable(nextOptimizable);
          !(nextOpt.legalJoinOrder(assignedTableMap));
          nextOpt = optimizableList.getOptimizable(nextOptimizable))
        {
          // Undo last swap, if we had one.
          if (lastSwappedOpt >= 0) {
            firstLookOrder[joinPosition] = idealOptimizable;

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

   */
  private boolean joinOrderMeetsDependencies(int optNumber)
    throws StandardException
  {
    Optimizable nextOpt = optimizableList.getOptimizable(optNumber);
    return nextOpt.legalJoinOrder(assignedTableMap);
  }


  /**
   * Pull whatever optimizable is at joinPosition in the proposed
   * join order from the join order, and update all corresponding

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

        int lookPos = numOptimizables;
        int lastSwappedOpt = -1;


        Optimizable nextOpt;
        for (nextOpt = optimizableList.getOptimizable(nextOptimizable);
          !(nextOpt.legalJoinOrder(assignedTableMap));
          nextOpt = optimizableList.getOptimizable(nextOptimizable))
        {
          // Undo last swap, if we had one.
          if (lastSwappedOpt >= 0) {
            firstLookOrder[joinPosition] = idealOptimizable;

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

   */
  private boolean joinOrderMeetsDependencies(int optNumber)
    throws StandardException
  {
    Optimizable nextOpt = optimizableList.getOptimizable(optNumber);
    return nextOpt.legalJoinOrder(assignedTableMap);
  }


  /**
   * Pull whatever optimizable is at joinPosition in the proposed
   * join order from the join order, and update all corresponding

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

      }
      else if (permuteState == JUMPING)  //still jumping
      {
        nextOptimizable = firstLookOrder[joinPosition];
        Optimizable nextOpt = optimizableList.getOptimizable(nextOptimizable);
        if (! (nextOpt.legalJoinOrder(assignedTableMap)))
        {
          if (joinPosition < numOptimizables - 1)
          {
            firstLookOrder[joinPosition] = firstLookOrder[numOptimizables - 1];
            firstLookOrder[numOptimizables - 1] = nextOptimizable;

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

           */
          if (nextOptimizable < numOptimizables)
          {
            Optimizable nextOpt =
                optimizableList.getOptimizable(nextOptimizable);
            if (! (nextOpt.legalJoinOrder(assignedTableMap)))
            {
              if (optimizerTrace)
              {
                trace(SKIPPING_JOIN_ORDER, nextOptimizable, 0, 0.0, null);
              }

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

        int lookPos = numOptimizables;
        int lastSwappedOpt = -1;


        Optimizable nextOpt;
        for (nextOpt = optimizableList.getOptimizable(nextOptimizable);
          !(nextOpt.legalJoinOrder(assignedTableMap));
          nextOpt = optimizableList.getOptimizable(nextOptimizable))
        {
          // Undo last swap, if we had one.
          if (lastSwappedOpt >= 0) {
            firstLookOrder[joinPosition] = idealOptimizable;

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

           */
          if (nextOptimizable < numOptimizables)
          {
            Optimizable nextOpt =
                optimizableList.getOptimizable(nextOptimizable);
            if (! (nextOpt.legalJoinOrder(assignedTableMap)))
            {
              if (optimizerTrace)
              {
                trace(SKIPPING_JOIN_ORDER, nextOptimizable, 0, 0.0, null);
              }

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

      }
      else if (permuteState == JUMPING)  //still jumping
      {
        nextOptimizable = firstLookOrder[joinPosition];
        Optimizable nextOpt = optimizableList.getOptimizable(nextOptimizable);
        if (! (nextOpt.legalJoinOrder(assignedTableMap)))
        {
          if (joinPosition < numOptimizables - 1)
          {
            firstLookOrder[joinPosition] = firstLookOrder[numOptimizables - 1];
            firstLookOrder[numOptimizables - 1] = nextOptimizable;

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

           */
          if (nextOptimizable < numOptimizables)
          {
            Optimizable nextOpt =
                optimizableList.getOptimizable(nextOptimizable);
            if (! (nextOpt.legalJoinOrder(assignedTableMap)))
            {
              if (optimizerTrace)
              {
                trace(SKIPPING_JOIN_ORDER, nextOptimizable, 0, 0.0, null);
              }

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