Github user pkuwm commented on the issue:
https://github.com/apache/spark/pull/21386
@ueshin Really sorry for the delay. I was handling some personal stuff
recently and was not able to modify this patch as I am not really familiar with
this part.
I updated the commit and fixed line wraps, typos, replacing the shuffle
tests in functions.py with a note.
About the similarities of Reverse and Shuffle, I was trying to implement a
trait, but did not have a good idea because the code is not the same.
And not sure if Stateful would be a good fit for this function.
Can you help? If you have better idea, maybe you can continue completing
this implementation. Thanks a lot!
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