Github user sameeragarwal commented on the pull request:
https://github.com/apache/spark/pull/13150#issuecomment-220734823
@Parth-Brahmbhatt this looks pretty good. However, given that hitting the
underlying filesystem directly can incur a lot of latency (especially in case
of S3), can you please conf protect this change (with a comment about the
potential performance issues)? Additionally, perhaps it might be nice to set
the conf to false by default to prevent silent regressions for existing queries
(especially if we're targeting this for 2.0).
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