itholic commented on a change in pull request #33744: URL: https://github.com/apache/spark/pull/33744#discussion_r703134281
########## File path: python/pyspark/pandas/typedef/typehints.py ########## @@ -323,7 +323,7 @@ def infer_pd_series_spark_type(pser: pd.Series, dtype: Dtype) -> types.DataType: if dtype == np.dtype("object"): if len(pser) == 0 or pser.isnull().all(): return types.NullType() - elif hasattr(pser.iloc[0], "__UDT__"): + elif hasattr(pser, "iloc") and hasattr(pser.iloc[0], "__UDT__"): Review comment: I think we should not pass the `Index` to the `infer_pd_series_spark_type`. At least we should change the function name (such as `infer_pd_indexops_spark_type`) and input & output type of the function, or add a new function and use it as you mentioned. BTW, actually I think we don't really need to use `pandas_udf` here, though. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org