AnhTtis commented on PR #58376:
URL: https://github.com/apache/spark/pull/58376#issuecomment-5452469962
Hi @cloud-fan, all CI checks, Scalastyle, and regression test suites for
this PR have passed.
Could you please take a look at this PR when you have time? It fixes a
Unicode case-conversion semantics issue in `SimplifyCaseConversionExpressions`
by removing non-semantics-preserving cross-case simplifications (such as
`lower(upper('ı'))`) while preserving same-case idempotent simplifications.
Thanks!
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