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Posted to dev@pig.apache.org by "Greg Phillips (JIRA)" <ji...@apache.org> on 2018/04/12 13:52:00 UTC

[jira] [Created] (PIG-5338) Prevent deep copy of DataBag into Jython List

Greg Phillips created PIG-5338:
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             Summary: Prevent deep copy of DataBag into Jython List
                 Key: PIG-5338
                 URL: https://issues.apache.org/jira/browse/PIG-5338
             Project: Pig
          Issue Type: Improvement
            Reporter: Greg Phillips


Pig Python UDFs currently perform deep copies on Bags converting them into Jython PyLists. This can cause Jython UDFs to run out of memory and fail. A Jython DataBag which extends PyList could allow for iterative access to DataBag elements, while only performing a deep copy when necessary.



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