Github user viirya commented on the issue:
https://github.com/apache/spark/pull/19418
I think we don't want to add such defensive condition and avoid the
logtrace. Without that, we don't know the problem is happened. We should
identify the issue and fix it if it is really there, instead of hiding the
error. Btw, you still don't get correct result even by avoiding the error,
right?
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