Examples with ResultStore com.actiontech.dble.plan.common.external.ResultStore used on opensource projects

Example 1 with ResultStore

use of com.actiontech.dble.plan.common.external.ResultStore in project dble by actiontech.

the class OrderedGroupByHandler method prepareSumAggregators.

/**
 * see Sql_executor.cc
 *
 * @return
 */
protected void prepareSumAggregators(List<ItemSum> functions, List<ItemSum> sumFunctions, List<FieldPacket> packets, boolean isAllPushDown, boolean needDistinct, MySQLConnection conn) {
    LOGGER.info("prepare_sum_aggregators");
    for (int i = 0; i < functions.size(); i++) {
        ItemSum func = functions.get(i);
        ResultStore store = null;
        if (func.hasWithDistinct()) {
            ItemSum selFunc = sumFunctions.get(i);
            List<Order> orders = HandlerTool.makeOrder(selFunc.arguments());
            RowDataComparator distinctCmp = new RowDataComparator(packets, orders, isAllPushDown, this.type());
            store = new DistinctLocalResult(pool, packets.size(), distinctCmp, this.charset).setMemSizeController(session.getOtherBufferMC());
            distinctStores.add(store);
        }
        func.setAggregator(needDistinct && func.hasWithDistinct() ? AggregatorType.DISTINCT_AGGREGATOR : AggregatorType.SIMPLE_AGGREGATOR, store);
    }
}