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https://issues.apache.org/jira/browse/HIVE-26314?focusedWorklogId=782091&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-782091
 ]

ASF GitHub Bot logged work on HIVE-26314:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 16/Jun/22 15:52
            Start Date: 16/Jun/22 15:52
    Worklog Time Spent: 10m 
      Work Description: wecharyu commented on code in PR #3360:
URL: https://github.com/apache/hive/pull/3360#discussion_r899246871


##########
ql/src/java/org/apache/hadoop/hive/ql/ddl/function/create/CreateFunctionOperation.java:
##########
@@ -116,11 +119,27 @@ private int createPermanentFunction() throws 
HiveException, IOException {
       return 1;
     }
 
-    boolean addToMetastoreSuccess = addToMetastore(dbName, functionName, 
registeredName);
-    if (!addToMetastoreSuccess) {
+    // TODO: should this use getUserFromAuthenticator instead of 
SessionState.get().getUserName()?
+    Function function = new Function(functionName, dbName, 
desc.getClassName(), SessionState.get().getUserName(),

Review Comment:
   Can we add `OWNER_PRIV` for altering function? Then only the owner of this 
function can do alter operation.





Issue Time Tracking
-------------------

    Worklog Id:     (was: 782091)
    Time Spent: 1h 20m  (was: 1h 10m)

> Support alter function in Hive DDL
> ----------------------------------
>
>                 Key: HIVE-26314
>                 URL: https://issues.apache.org/jira/browse/HIVE-26314
>             Project: Hive
>          Issue Type: Task
>          Components: Hive
>    Affects Versions: 4.0.0-alpha-1
>            Reporter: Wechar
>            Assignee: Wechar
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 4.0.0-alpha-2
>
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> Hive SQL does not support {{*ALTER FUNCTION*}} yet, we can refer to the 
> {{*CREATE [OR REPLACE] FUNCTION*}} of 
> [Spark|https://spark.apache.org/docs/3.1.2/sql-ref-syntax-ddl-create-function.html]
>  to implement the alter function .
> {code:sql}
> CREATE [ TEMPORARY ] FUNCTION [ OR REPLACE ] [IF NOT EXISTS ]
>   [db_name.]function_name AS class_name
>   [USING JAR|FILE|ARCHIVE 'file_uri' [, JAR|FILE|ARCHIVE 'file_uri'] ];
> {code}
> * *OR REPLACE*
> If specified, the resources for the function are reloaded. This is mainly 
> useful to pick up any changes made to the implementation of the function. 
> This parameter is mutually exclusive to {{*IF NOT EXISTS*}} and can not be 
> specified together.



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