protected Object getPrimitiveArraysByType(TSDataType dataType) {
    return PrimitiveArrayManager.allocate(dataType);
  }
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