Github user marmbrus commented on the pull request:
https://github.com/apache/spark/pull/11509#issuecomment-193902037
@koertkuipers improving the efficiency of working with large files was
certainly a goal in this refactoring and this API is definitely not done yet.
That said, I'm not really sure that the correct thing to do is to avoid listing
all of the files at the driver. Every version of Spark SQL has done this
listing AFAIK during split planning even before we added a caching layer.
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