Examples of org.apache.phoenix.iterate.MergeSortTopNResultIterator

org.apache.phoenix.iterate.MergeSortTopNResultIterator
ResultIterator that does a merge sort on the list of iterators provided, returning the rows ordered by the OrderByExpression. The input iterators must be ordered by the OrderByExpression. @since 0.1

         */
        boolean isOrdered = !orderBy.getOrderByExpressions().isEmpty();
        ParallelIterators iterators = new ParallelIterators(context, tableRef, statement, projection, GroupBy.EMPTY_GROUP_BY, !allowPageFilter || isOrdered ? null : limit, parallelIteratorFactory);
        splits = iterators.getSplits();
        if (isOrdered) {
            scanner = new MergeSortTopNResultIterator(iterators, limit, orderBy.getOrderByExpressions());
        } else {
            if (isSalted &&
                    (context.getConnection().getQueryServices().getProps().getBoolean(
                            QueryServices.ROW_KEY_ORDER_SALTED_TABLE_ATTRIB,
                            QueryServicesOptions.DEFAULT_ROW_KEY_ORDER_SALTED_TABLE) ||

View Full Code Here

         */
        boolean isOrdered = !orderBy.getOrderByExpressions().isEmpty();
        ParallelIterators iterators = new ParallelIterators(context, tableRef, statement, projection, GroupBy.EMPTY_GROUP_BY, isOrdered ? null : limit, parallelIteratorFactory);
        splits = iterators.getSplits();
        if (isOrdered) {
            scanner = new MergeSortTopNResultIterator(iterators, limit, orderBy.getOrderByExpressions());
        } else {
            if (isSalted && 
                    (services.getProps().getBoolean(
                            QueryServices.ROW_KEY_ORDER_SALTED_TABLE_ATTRIB, 
                            QueryServicesOptions.DEFAULT_ROW_KEY_ORDER_SALTED_TABLE) ||

View Full Code Here

         */
        boolean isOrdered = !orderBy.getOrderByExpressions().isEmpty();
        ParallelIterators iterators = new ParallelIterators(context, tableRef, statement, projection, GroupBy.EMPTY_GROUP_BY, !allowPageFilter || isOrdered ? null : limit, parallelIteratorFactory);
        splits = iterators.getSplits();
        if (isOrdered) {
            scanner = new MergeSortTopNResultIterator(iterators, limit, orderBy.getOrderByExpressions());
        } else {
            if ((isSalted || table.getIndexType() == IndexType.LOCAL) &&
                    (context.getConnection().getQueryServices().getProps().getBoolean(
                            QueryServices.ROW_KEY_ORDER_SALTED_TABLE_ATTRIB,
                            QueryServicesOptions.DEFAULT_ROW_KEY_ORDER_SALTED_TABLE) ||

View Full Code Here

         */
        boolean isOrdered = !orderBy.getOrderByExpressions().isEmpty();
        ParallelIterators iterators = new ParallelIterators(context, tableRef, statement, projection, GroupBy.EMPTY_GROUP_BY, isOrdered ? null : limit, parallelIteratorFactory);
        splits = iterators.getSplits();
        if (isOrdered) {
            scanner = new MergeSortTopNResultIterator(iterators, limit, orderBy.getOrderByExpressions());
        } else {
            if (isSalted && 
                    (context.getConnection().getQueryServices().getProps().getBoolean(
                            QueryServices.ROW_KEY_ORDER_SALTED_TABLE_ATTRIB, 
                            QueryServicesOptions.DEFAULT_ROW_KEY_ORDER_SALTED_TABLE) ||

View Full Code Here

TOP

Related Classes of org.apache.phoenix.iterate.MergeSortTopNResultIterator

org.apache.phoenix.execute.ScanPlan

org.apache.phoenix.expression.Expression

org.apache.phoenix.expression.OrderByExpression

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.