Github user gengliangwang commented on a diff in the pull request: https://github.com/apache/spark/pull/21667#discussion_r199999766 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileFormat.scala --- @@ -152,6 +152,12 @@ trait FileFormat { } } + /** + * Validate the given [[DataType]] in read/write path for this file format. + * If the [[DataType]] is not supported, an exception will be thrown. + * By default all data types are supported. + */ + def validateDataType(dataType: DataType, isReadPath: Boolean): Unit = {} --- End diff -- Yes, that was what I did in first commit. If the unsupported type is inside struct/array, then the error message is not accurate as the current way. I am OK with revert to return Boolean though.
--- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org