Github user liancheng commented on a diff in the pull request: https://github.com/apache/spark/pull/14038#discussion_r69519846 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/fileSourceInterfaces.scala --- @@ -230,6 +236,15 @@ trait FileFormat { } /** + * Return a `SerializablePathFilter` class to filter qualified files for this format. + */ + def getPathFilter(): SerializablePathFilter = { --- End diff -- What is the semantics of the return value of the method? Seems that it should never return a null filter since it defaults to an "accept all" filter. If this is true, it's unnecessary to use `Option` to wrap returned filters elsewhere in this PR.
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