Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/14750#discussion_r86472353
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala ---
@@ -620,7 +667,9 @@ private[spark] class HiveExternalCatalog(conf:
SparkConf, hadoopConf: Configurat
val orderedPartitionSpec = new util.LinkedHashMap[String, String]()
getTable(db, table).partitionColumnNames.foreach { colName =>
- orderedPartitionSpec.put(colName, partition(colName))
+ // Lowercase the partition column names before passing the partition
spec to Hive client, as
+ // Hive metastore is not case preserving.
--- End diff --
Let's mention that Hive will lower case the part column names. So, if we do
not convert the name to its lower case, hive will complain.
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