Examples of org.voltdb.plannodes.MaterializedScanPlanNode

            assert(expr2 != null);
            if (expr.getExpressionType() == ExpressionType.COMPARE_IN) {
                // Replace this method's result with an injected NLIJ.
                resultNode = injectIndexedJoinWithMaterializedScan(expr2, scanNode);
                // Extract a TVE from the LHS MaterializedScan for use by the IndexScan in its new role.
                MaterializedScanPlanNode matscan = (MaterializedScanPlanNode)resultNode.getChild(0);
                AbstractExpression elemExpr = matscan.getOutputExpression();
                assert(elemExpr != null);
                // Replace the IN LIST condition in the end expression referencing all the list elements
                // with a more efficient equality filter referencing the TVE for each element in turn.
                replaceInListFilterWithEqualityFilter(path.endExprs, expr2, elemExpr);
                // Set up the similar VectorValue --> TVE replacement of the search key expression.


    // Generate a plan for an IN-LIST-driven index scan
    private static AbstractPlanNode injectIndexedJoinWithMaterializedScan(AbstractExpression listElements,
                                                                   IndexScanPlanNode scanNode)
    {
        MaterializedScanPlanNode matScan = new MaterializedScanPlanNode();
        assert(listElements instanceof VectorValueExpression || listElements instanceof ParameterValueExpression);
        matScan.setRowData(listElements);
        matScan.setSortDirection(scanNode.getSortDirection());


        NestLoopIndexPlanNode nlijNode = new NestLoopIndexPlanNode();
        nlijNode.setJoinType(JoinType.INNER);
        nlijNode.addInlinePlanNode(scanNode);
        nlijNode.addAndLinkChild(matScan);

Examples of org.voltdb.plannodes.MaterializedScanPlanNode

Related Classes of org.voltdb.plannodes.MaterializedScanPlanNode