MySQL privilege check compatibility, error is much too simple.

[AndrewDi]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. What did you do?
   If possible, provide a recipe for reproducing the error.
   Create a user testuser with CREATE privilege, but without SELECT privilege.

mysql> create table t11(a int,b int);                                                                                                                                                                    
Query OK, 0 rows affected (0.63 sec)                                                                                                                                                                     
                                                                                                                                                                                                         
mysql> select * from t11;

2. What did you expect to see?

mysql> select * from t11;
ERROR 1142 (42000): SELECT command denied to user 'testuser'@'localhost' for table 't11' 

3. What did you see instead?

mysql> select * from t11;                                                                                                                                                                                 
ERROR 1105 (HY000): privilege check fail

4. What version of TiDB are you using (tidb-server -V or run select tidb_version(); on TiDB)?
   3.0 Beta

[morgo]

This might be a sub-task of #8946

Context: In #8855 visitInfo was extended to allow a custom error to be attached. #8946 tracks cases where a nil error is still attached, which generates ERROR 1105 (HY000): privilege check fail.

[AndrewDi]

Already fix...close this issue.