Why I'm doing:

What I'm doing:

mysql> create table t(k int, v int) partition by (k);
Query OK, 0 rows affected (0.03 sec)

mysql> select * from t;
+------+------+
| k    | v    |
+------+------+
|    1 |    1 |
|    2 |    1 |
+------+------+
2 rows in set (0.04 sec)

mysql> insert overwrite t values(2,2),(3,1);
Query OK, 2 rows affected (0.67 sec)
{'label':'insert_2a8326fc-84e5-11ef-8832-00163e077b59', 'status':'VISIBLE', 'txnId':'16018'}

mysql> select * from t;
+------+------+
| k    | v    |
+------+------+
|    3 |    1 |
|    2 |    2 |
+------+------+
2 rows in set (0.32 sec)

mysql> set dynamic_overwrite=true;
Query OK, 0 rows affected (0.00 sec)

mysql> insert overwrite t values(4,1),(3,2);
Query OK, 2 rows affected (0.19 sec)
{'label':'insert_4f641217-84e5-11ef-8832-00163e077b59', 'status':'VISIBLE', 'txnId':'16021'}

mysql> select * from t;
+------+------+
| k    | v    |
+------+------+
|    2 |    2 |
|    4 |    1 |
|    3 |    2 |
+------+------+
3 rows in set (0.08 sec)

Fixes #51619

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 3.3
  • 3.2
  • 3.1
  • 3.0
  • 2.5