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Posted to issues@spark.apache.org by "Peter Nguyen (Jira)" <ji...@apache.org> on 2025/07/31 23:02:00 UTC

[jira] [Created] (SPARK-53053) Support Pandas Extension Properties

Peter Nguyen created SPARK-53053:
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             Summary: Support Pandas Extension Properties
                 Key: SPARK-53053
                 URL: https://issues.apache.org/jira/browse/SPARK-53053
             Project: Spark
          Issue Type: Bug
          Components: Pandas API on Spark
    Affects Versions: 4.1.0
            Reporter: Peter Nguyen


Original pandas supports properties like _constructor that are can be used to easily override what datatype is returned by default when downstream libraries are built to inherit from pandas classes (e.g Dask). By override the _constructor method,

def _constructor(self):

     return MyDataFrame

all functions like head() and getitem return the object using that type (MyDataFrame) instead of a normal Pandas dataframe. To implement this, we would have to manually modify functions like self.head() to return self._constructor(result) instead of DataFrame(result)

 

https://pandas.pydata.org/docs/development/extending.html#override-constructor-properties



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