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https://issues.apache.org/jira/browse/SPARK-61160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-61160.
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Resolution: Fixed
Issue resolved by pull request 348
[https://github.com/apache/spark-connect-rust/pull/348]
> Close the local iterator of toLocalIterator as a generator, so
> contextlib.closing and close() end the execution in the Python client as
> PySpark does
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-61160
> URL: https://issues.apache.org/jira/browse/SPARK-61160
> Project: Spark
> Issue Type: Bug
> Components: Connect
> Affects Versions: connect-rust-4.3.0
> Reporter: Hyukjin Kwon
> Assignee: Hyukjin Kwon
> Priority: Major
> Labels: pull-request-available
> Fix For: connect-rust-4.3.0
>
>
> df.toLocalIterator() returns a LocalRowIterator with only __iter__ and
> __next__, so contextlib.closing(it) and it.close() raise AttributeError:
> 'LocalRowIterator' object has no attribute 'close'. PySpark returns a
> generator, whose close() ends the iteration and releases the execution early,
> and whose next() then raises StopIteration. The fix adds close() to
> LocalRowIterator, which drops the stream and ends the iteration; closing it
> again does nothing.
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