HIVE-27780: Implement direct SQL for get_all_functions - ADDENDUM (ap…

…ache#4971). (zhangbutao, reviewed by Ayush Saxena)
dengzhhu653 · Mar 7, 2024 · 7cf28ce · 7cf28ce
1 parent 1dca89e
commit 7cf28ce
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/...e/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/MetaStoreDirectSql.java b/...e/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/MetaStoreDirectSql.java
@@ -3143,6 +3143,9 @@ public Map<String, Map<String, String>> updatePartitionColumnStatisticsBatch(
 
   public List<Function> getFunctions(String catName) throws MetaException {
     List<Long> funcIds = getFunctionIds(catName);
+    if (funcIds.isEmpty()) {
+      return Collections.emptyList(); // no functions, bail early.
+    }
     // Get full objects. For Oracle/etc. do it in batches.
     return Batchable.runBatched(batchSize, funcIds, new Batchable<Long, Function>() {
       @Override