VALUES statement is not supported

Description

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

Execute the VALUES statement

values row(1);

2. What did you expect to see? (Required)

mysql> values row(1);
+----------+
| column_0 |
+----------+
|        1 |
+----------+
1 row in set (0.00 sec)

3. What did you see instead (Required)

The query throws the 1051 Unknown Table error.

mysql> values row(1);
ERROR 1051 (42S02): Unknown table ''

4. What is your TiDB version? (Required)

e33b37789c616d7b7c997748cdd7eac6d6ec835c

Release Version: v8.1.0
Edition: Community
Git Commit Hash: 945d07c5d5c7a1ae212f6013adfb187f2de24b23
Git Branch: HEAD
UTC Build Time: 2024-05-21 03:52:40
GoVersion: go1.21.10
Race Enabled: false
Check Table Before Drop: false
Store: tikv