Github user gengliangwang commented on a diff in the pull request: https://github.com/apache/spark/pull/21667#discussion_r200255604 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileFormat.scala --- @@ -152,6 +152,11 @@ trait FileFormat { } } + /** + * Returns whether this format supports the given [[DataType]] in read/write path. + * By default all data types are supported. + */ + def supportDataType(dataType: DataType, isReadPath: Boolean): Boolean = true --- End diff -- `HiveFileFormat`. Currently I don't know Hive well. If someone can override it for `HiveFileFormat`, please create a follow up PR.
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