List of nonBasePredicateSelectivity() Examples

Examples of nonBasePredicateSelectivity()

org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()
Get the extra selectivity of the non-base predicates (those that were left in the predicate list by getBasePredicates() that are not applied to the scan of the base conglomerate. NOTE: For some types of join strategy, it may not remove any predicates from the original predicate list. The join strategy is expected to know when it does this, and to return 1.0 as the extra selectivity in these cases. @param innerTable The inner table of the join. @param predList The original predicate list that was passed togetBasePredicates(), from which some base predicates may have been pulled. @return The extra selectivity due to non-base predicates

Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

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Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

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Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

View Full Code Here

Examples of org.apache.derby.iapi.sql.compile.JoinStrategy.nonBasePredicateSelectivity()

      ** Factor the non-base-table predicates into the extra
      ** non-qualifier selectivity, since these will restrict the
      ** number of rows, but not the cost.
      */
      extraNonQualifierSelectivity *=
        currentJoinStrategy.nonBasePredicateSelectivity(this, predList);


      /* Create the start and stop key arrays, and fill them in */
      DataValueDescriptor[] startKeys;
      DataValueDescriptor[] stopKeys;

View Full Code Here

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