[GitHub] [spark] dchvn commented on a change in pull request #34179: [SPARK-36930][PYTHON] Add dtypes for MultiIndex

[GitBox <gi...@apache.org>]

dchvn commented on a change in pull request #34179:
URL: https://github.com/apache/spark/pull/34179#discussion_r721931454



##########
File path: python/pyspark/pandas/indexes/multi.py
##########
@@ -375,6 +375,15 @@ def name(self) -> Name:
     def name(self, name: Name) -> None:
         raise PandasNotImplementedError(class_name="pd.MultiIndex", property_name="name")
 
+    @property
+    def dtypes(self) -> Series:
+        return pd.Series(
+            [field.dtype for field in self._internal.index_fields],
+            index=pd.Index(
+                [name if len(name) > 1 else name[0] for name in self._internal.index_names]
+            ),
+        )

Review comment:
       Thank you, I will update. I copied behavior of ps.DataFrame.dtypes. Should we change it too?
   https://github.com/apache/spark/blob/d6786e036d610476a3be0fca5b16ba819dcbc013/python/pyspark/pandas/frame.py#L6276




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