xinrong-databricks commented on PR #36391:
URL: https://github.com/apache/spark/pull/36391#issuecomment-1113511649

   Would you elaborate on the user-facing change?
   
   A simple example as below helps:
   ```py
   # before
   >>> pd.MultiIndex.from_arrays([[1], [2]], names=[1, 1]).dtypes
   1    int64
   dtype: object
   
   # now
   >>> pd.MultiIndex.from_arrays([[1], [2]], names=[1, 1]).dtypes
   1    int64
   1    int64
   dtype: object
   ```


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