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Posted to issues@spark.apache.org by "Timothy (Jira)" <ji...@apache.org> on 2020/07/24 06:38:00 UTC

[jira] [Created] (SPARK-32423) class 'DataFrame' returns instance of type(self) instead of DataFrame

Timothy created SPARK-32423:
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             Summary: class 'DataFrame' returns instance of type(self) instead of DataFrame 
                 Key: SPARK-32423
                 URL: https://issues.apache.org/jira/browse/SPARK-32423
             Project: Spark
          Issue Type: Wish
          Components: PySpark
    Affects Versions: 3.0.0, 2.4.6
            Reporter: Timothy


To allow for appropriate child classing of DataFrame, I propose the following change:

class 'DataFrame' returns instance of type(self) instead of  typeDataFrame 

 

Therefore child classes using methods such as '.limit()' will return an instance of the child class.



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