@SuppressWarnings("squid:S3740")
  public Statistics currentPageStatistics(int index) {
    if (firstPageReader == null) {
      return null;
    }
    return firstPageReader.getMeasurementStatistics(index);
  }
This method should be called after hasNextChunk() until no next page, make sure that all
overlapped pages are consumed
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/execution/operator/source/SeriesScanUtil.java