Github user viirya commented on the pull request:
https://github.com/apache/spark/pull/11647#issuecomment-195225504
With latest change:
233 milliseconds
207 milliseconds
220 milliseconds
BTW, by completely removing the comparison of canonicalized expression in
`Expression.semanticEquals`, it can't be faster anymore.
In other words, the logic in `Canonicalize` after this change should be
unrelated to the time spent on `BooleanSimplification` now. If I am wrong about
this, please let me know.
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