linhongliu-db commented on pull request #30363:
URL: https://github.com/apache/spark/pull/30363#issuecomment-770925696


   @srowen, Thanks for reviewing.
   I think this PR is a kind of bug fix since the `set -v` doesn't output 
expected results in some cases. Also, even though it would work later after the 
SQLConf objects are used, it still may mislead users if the outputs of `set -v` 
are different when run multiple times.
   Regarding the complexity, actually, this PR almost has no side effect on 
existing code. even though there are exceptions during  eagerly loading, it 
will be catched and won't break the spark 


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