ABHISHEK KUMAR GUPTA created SPARK-28671:
--------------------------------------------
Summary: [UDF] dropping permanent function when a temporary
function with the same name already exists giving wrong msg on dropping it again
Key: SPARK-28671
URL: https://issues.apache.org/jira/browse/SPARK-28671
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.4.0
Reporter: ABHISHEK KUMAR GUPTA
Created jar and uploaded at hdfs path
1. ./hdfs dfs -put /opt/trash1/AddDoublesUDF.jar /user/user1/
2. Launch beeline and created permanent function
CREATE FUNCTION addDoubles AS
'com.huawei.bigdata.hive.example.udf.AddDoublesUDF' using jar
'hdfs://hacluster/user/user1/AddDoublesUDF.jar';
3. Perform select operation
jdbc:hive2://100.100.208.125:23040/default> SELECT addDoubles(1,2,3);
+------------------------------+--+
| default.addDoubles(1, 2, 3) |
+------------------------------+--+
| 6.0 |
+------------------------------+--+
1 row selected (0.111 seconds)
4. Created temporary function as below
jdbc:hive2://100.100.208.125:23040/default> CREATE temporary FUNCTION
addDoubles AS 'com.huawei.bigdata.hive.example.udf.AddDoublesUDF' using jar
'hdfs://hacluster/user/user1/AddDoublesUDF.jar';
5. jdbc:hive2://100.100.208.125:23040/default> SELECT addDoubles(1,2,3);
+----------------------+--+
| addDoubles(1, 2, 3) |
+----------------------+--+
| 6.0 |
+----------------------+--+
1 row selected (0.088 seconds)
6. Drop function
jdbc:hive2://100.100.208.125:23040/default> drop function addDoubles;
+---------+--+
| Result |
+---------+--+
+---------+--+
7. jdbc:hive2://100.100.208.125:23040/default> SELECT addDoubles(1,2,3);
-- It is success
8. Drop again Error thrown
jdbc:hive2://100.100.208.125:23040/default> drop function addDoubles;
Error: org.apache.spark.sql.catalyst.analysis.NoSuchFunctionException:
Undefined function: 'default.addDoubles'. This function is neither a registered
temporary function nor a permanent function registered in the database
'default'.; (state=,code=0)
9. Perform again select
jdbc:hive2://100.100.208.125:23040/default> SELECT addDoubles(1,2,3);
+----------------------+--+
| addDoubles(1, 2, 3) |
+----------------------+--+
| 6.0 |
Issue is why the Error msg shown is step 8 saying it is neither registered as
permanent or temporary function where as it is registered as temporary function
in step 4 that is why in step 9 select is returning result.
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