Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/21598
I am good to have the configuration as that's basically what I suggested
too. Removing the behaviour in 3.0.0 is fine. My only question left is the
default value.
> We should change the behavior in 3.0. Before 3.0 release, we introduce a
conf and make it configurable. The default is to keep the current behavior
unchanged.
@gatorsmile, do you think this is specific to this PR and JIRA, or we
should do the same things for other changes from now on? If it's latter, it
should really be discussed in the dev mailing list in a separate thread.
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