beliefer commented on PR #37825:
URL: https://github.com/apache/spark/pull/37825#issuecomment-1258944783
> Thanks, I will take a look. This is reference to the fall-through case,
where we discover there is really only a single distinct group, correct?
Yes. `distinct b + 1` and
beliefer commented on PR #37825:
URL: https://github.com/apache/spark/pull/37825#issuecomment-1257447790
It seems a little complex.
I have an idea to simplify the binary expressions in other optimizer rule.
Please reference `SimplifyBinaryComparison`.
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