xinrong-databricks commented on a change in pull request #36006:
URL: https://github.com/apache/spark/pull/36006#discussion_r840681722
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File path: python/pyspark/pandas/indexes/multi.py
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@@ -893,6 +893,70 @@ def drop(self, codes: List[Any], level:
Optional[Union[int, Name]] = None) -> "M
)
return cast(MultiIndex, DataFrame(internal).index)
+ def drop_duplicates(self, keep: Union[bool, str] = "first") ->
"MultiIndex":
+ """
Review comment:
`MultiIndex.drop_duplicates` was supported before 3.4, here we separate
the code path in order to better support the `keep` parameter.
Shall we add `versionadded:: 3.4.0` to the parameter?
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