Github user rxin commented on the issue:
https://github.com/apache/spark/pull/13371
I just talked to @liancheng offline. I don't think we should've merged this
until we have verified there is no performance regression, and we definitely
shouldn't have merged this in 2.0.
@liancheng can you revert this from both master and branch-2.0?
@viirya can you run some parquet scan benchmark and make sure this does not
result in perf regression?
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