Github user HyukjinKwon commented on the issue: https://github.com/apache/spark/pull/21427 How about we just start to have configurations classified for each version if it sounds better to have configurations for each behaviour change? For example, we could have postfix like spark_23 in the configuration name. Once we properly set this, I think this should get rid of all such overhead like this. For now, I am less sure what we are making it configurable. You guys really think https://github.com/apache/spark/pull/21427#issuecomment-393351811 makes any sense? This isn't really purely positional vs vs named now. See https://github.com/apache/spark/pull/21427#issuecomment-392070950, this actually covers both cases.
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