Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/19124#discussion_r137170969 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/command/ddl.scala --- @@ -848,4 +851,19 @@ object DDLUtils { } } } + + private[sql] def checkFieldNames(table: CatalogTable): Unit = { + val serde = table.storage.serde + if (serde == HiveSerDe.sourceToSerDe("orc").get.serde) { + OrcFileFormat.checkFieldNames(table.dataSchema) + } else if (serde == HiveSerDe.sourceToSerDe("parquet").get.serde) { --- End diff -- We could have different Parquet serde. For example, `parquet.hive.serde.ParquetHiveSerDe` and `org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe`. How about ORC?
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