Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/19651#discussion_r152522180 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcFileFormat.scala --- @@ -39,3 +58,122 @@ private[sql] object OrcFileFormat { names.foreach(checkFieldName) } } + +class DefaultSource extends OrcFileFormat --- End diff -- do we still need it? seems all other file formats don't have it now.
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