Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/21123#discussion_r183398030 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/FileDataSourceV2.scala --- @@ -27,15 +27,13 @@ import org.apache.spark.sql.sources.v2.WriteSupport */ trait FileDataSourceV2 extends DataSourceV2 with DataSourceRegister { /** - * Returns an optional V1 [[FileFormat]] class of the same file data source. + * Returns n V1 [[FileFormat]] class of the same file data source. --- End diff -- n -> a
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