@Override
    public boolean hasNextSeqResource() {
      while (dataSource.hasNextSeqResource(curSeqFileIndex, true, deviceID)) {
        if (dataSource.isSeqSatisfied(
            deviceID, curSeqFileIndex, scanOptions.getGlobalTimeFilter(), false)) {
          break;
        }
        curSeqFileIndex++;
      }
      return dataSource.hasNextSeqResource(curSeqFileIndex, true, deviceID);
    }
Return true if taking first page reader from seq readers
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/execution/operator/source/SeriesScanUtil.java