Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/14750#discussion_r78129508 --- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/InsertIntoHiveTable.scala --- @@ -169,7 +169,10 @@ case class InsertIntoHiveTable( // All partition column names in the format of "<column name 1>/<column name 2>/..." val partitionColumns = fileSinkConf.getTableInfo.getProperties.getProperty("partition_columns") - val partitionColumnNames = Option(partitionColumns).map(_.split("/")).getOrElse(Array.empty) + // As the keys of partition spec `partition` is always lowercase, we should also lowercase the + // partition column names of the table here. + val partitionColumnNames = + Option(partitionColumns).map(_.split("/").map(_.toLowerCase)).getOrElse(Array.empty) --- End diff -- We can combine the above two lines into a single line? ```Scala val partitionColumnNames = table.catalogTable.partitionColumnNames.map(_.toLowerCase) ```
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