Github user dongjoon-hyun commented on the issue:
https://github.com/apache/spark/pull/14580
Hi, @gatorsmile . Thank you for review.
BTW, could you give me a reason why you think like the following?
> The fix does not look right to me.
What is the root cause which you think? I think I missed your context. For
me, current optimizer work definitely incorrectly (as we see the reported case)
and this PR fixes that now. I think this is not a SQL standard issue. If you
give some counter examples, I can grasp your concern here.
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