Github user kiszk commented on the issue:
https://github.com/apache/spark/pull/15840
Does this approach avoid to generate code `convertedArray[loopIndex] =
null;` if `lambdaFunction.nullable` is `true`? Is it a design? I know that it
works correctly in this case since an array allocation ensures that all of the
elements have `null`.
I am curious that whether the current restriction (generate only if-then)
in `nullSafeExec()` works in other places.
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