public void shallowCopyTo(ColumnVector otherCv) {
    otherCv.isNull = isNull;
    otherCv.noNulls = noNulls;
    otherCv.isRepeating = isRepeating;
    otherCv.preFlattenIsRepeating = preFlattenIsRepeating;
    otherCv.preFlattenNoNulls = preFlattenNoNulls;
    otherCv.refCount = refCount;
  }
Shallow copy of the contents of this vector to the other vector;
replaces other vector's values.
storage-api/src/java/org/apache/hadoop/hive/ql/exec/vector/ColumnVector.java