public double getDouble(int index) {
    throw new UnsupportedOperationException(ERR_DATATYPE_NOT_CONSISTENT);
  }
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