[GitHub] [spark] wangyum commented on a change in pull request #24762: [SPARK-27907][SQL] HiveUDAF with 0 rows throw NPE

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wangyum commented on a change in pull request #24762: [SPARK-27907][SQL] HiveUDAF with 0 rows throw NPE
URL: https://github.com/apache/spark/pull/24762#discussion_r289581025
 
 

 ##########
 File path: sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HiveUDAFSuite.scala
 ##########
 @@ -149,6 +149,16 @@ class HiveUDAFSuite extends QueryTest with TestHiveSingleton with SQLTestUtils {
       }
     }
   }
+
+  test("HiveUDAF with 0 rows throws NPE") {
+    sql("create table abc(a int)")
 
 Review comment:
   
   Please wrap with `withTable`:
   ```scala
   withTable("abc") {
     // ...
   }
   ```

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