private void assignIntervalDayTimeNullsNoRepeatingNoSelection(int keyIndex, int index, int size,
      IntervalDayTimeColumnVector columnVector) {
    for(int r = 0; r < size; ++r) {
      if (!columnVector.isNull[r]) {
        vectorHashKeyWrappers[r].assignIntervalDayTime(index, columnVector, r);
      } else {
        vectorHashKeyWrappers[r].assignNullIntervalDayTime(keyIndex, index);
      }
    }
  }
Helper method to assign values from a vector column into the key wrapper.
Optimized for IntervalDayTime type, possible nulls, repeat values.
ql/src/java/org/apache/hadoop/hive/ql/exec/vector/wrapper/VectorHashKeyWrapperBatch.java