Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/19124#discussion_r137141677
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/ddl.scala ---
@@ -848,4 +851,24 @@ object DDLUtils {
}
}
}
+
+ private[sql] def checkFieldNames(table: CatalogTable): Unit = {
+ table.provider.get.toLowerCase(Locale.ROOT) match {
--- End diff --
Do you mean `table.storage.serde` by `the format`?
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