protected void clearIndices() {
    if (indices != null) {
      for (int[] dataArray : indices) {
        PrimitiveArrayManager.release(dataArray);
      }
      indices.clear();
    }
  }
Get whether value is null at the given position in TvList.

@param unsortedRowIndex value index
@return boolean
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/utils/datastructure/TVList.java