dengzhhu653 commented on code in PR #5206:
URL: https://github.com/apache/hive/pull/5206#discussion_r1606442035


##########
ql/src/java/org/apache/hadoop/hive/ql/metadata/SessionHiveMetaStoreClient.java:
##########
@@ -1201,7 +1201,7 @@ public List<String> listPartitionNames(String catName, 
String dbName, String tbl
   public List<String> listPartitionNames(String catName, String dbName, String 
tblName,
       List<String> partVals, int maxParts) throws TException {
     org.apache.hadoop.hive.metastore.api.Table table = getTempTable(dbName, 
tblName);
-    if (table == null) {
+    if (table == null || partVals == null) {

Review Comment:
   Why not revert back the check on 
[PartitionTree.java](https://github.com/apache/hive/pull/5206/files#diff-f83827d7c6ec0a73bbc558101e64145afb555daff397c999c7491373253168c7),
 it's a bit confusing a temporary table just for performing a null check in 
`HiveMetaStoreClient`



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