Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/21389#discussion_r190130347 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcFileFormat.scala --- @@ -89,6 +89,8 @@ class OrcFileFormat job: Job, options: Map[String, String], dataSchema: StructType): OutputWriterFactory = { + DataSourceUtils.verifySchema("ORC", dataSchema) --- End diff -- Thank you for refactoring the PR, @maropu ! What about using `shortName` instead of string literal "ORC" here? Then, we can have the same line like the following. ``` DataSourceUtils.verifySchema(shortName, dataSchema) ```
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