Github user asfgit closed the pull request at:
https://github.com/apache/spark/pull/17555
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GitHub user rxin opened a pull request:
https://github.com/apache/spark/pull/17555
[SPARK-19495][SQL] Make SQLConf slightly more extensible - addendum
## What changes were proposed in this pull request?
This is a tiny addendum to SPARK-19495 to remove the private visibility for
