Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/15998#discussion_r90181774
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala ---
@@ -922,6 +924,25 @@ private[spark] class HiveExternalCatalog(conf:
SparkConf, hadoopConf: Configurat
/**
* Returns the partition names from hive metastore for a given table in
a database.
*/
+ override def listPartitionNames(
+ db: String,
+ table: String,
+ partialSpec: Option[TablePartitionSpec] = None): Seq[String] =
withClient {
+ val actualPartColNames = getTable(db, table).partitionColumnNames
+ val clientPartitionNames =
+ client.getPartitionNames(db, table,
partialSpec.map(lowerCasePartitionSpec))
+ clientPartitionNames.map { partName =>
+ val partSpec = PartitioningUtils.parsePathFragmentAsSeq(partName)
+ partSpec.map { case (partName, partValue) =>
+
escapePathName(actualPartColNames.find(_.equalsIgnoreCase(partName)).get) + "="
+
--- End diff --
can we just build a map with lower cased partition column name as key, and
path-escaped actual partition column name as value? then we can do a simple map
lookup here, i.e. `map.get(partName.toLowerCase)`
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