Github user HyukjinKwon commented on the issue: https://github.com/apache/spark/pull/20163 @ueshin @icexelloss @cloud-fan @rednaxelafx, which one would you prefer? To me, I like 1 at most. If the perf diff is trivial, 2. is also fine. If 3. works fine, I think I am also fine with it.
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