public static void appendAggregationResult(
      TsBlockBuilder tsBlockBuilder, List<? extends TreeAggregator> aggregators, long outputTime) {
    appendAggregationResult(tsBlockBuilder, aggregators, outputTime, INVALID_END_TIME);
  }
Append a row of aggregation results to the result tsBlock.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/execution/operator/AggregationUtil.java