Github user kapilsingh5050 commented on the issue:
https://github.com/apache/spark/pull/15620
I'm not sure whether I understand the problem completely. It seems
WholeStage CodeGen wants the complete stage code in a single function. The fix
I made violates this because it creates separate methods for codegen of If
expression's condition, if block and then block (of course, when the total code
is beyond a threshold).
Now, if my assumption about WholeStage CodeGen is correct then how does the
split expressions logic work? Or maybe the problem is specific to
initialisation of input attributes of a stage.
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