grant lock tables on t.* to ${role_name} ERROR

[jingshanglu]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

create database t;
drop role if exists r1;
create role r1;
grant lock tables on t.* TO 'r1'@'%';

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

grant successful

3. What did you see instead (Required)

ERROR 1221 (HY000): Incorrect usage of DB GRANT and NON-DB PRIVILEGES

4. What is your TiDB version? (Required)

master
commit id: caba86a

[seiya-annie]

reproduce on 5.2.0.
5.1.1 seems don't have this bug.

[aytrack]

5.1.1 not report this error but not really grant this privilege.

MySQL root@127.0.0.1:(none)> create database t;
                         ->  drop role if exists r1;
                         ->  create role r1;
                         ->  grant lock tables on t.* TO 'r1'@'%';
                         ->
Query OK, 0 rows affected
Time: 0.129s

Query OK, 0 rows affected
Time: 0.014s

Query OK, 0 rows affected
Time: 0.012s

Query OK, 0 rows affected
Time: 0.010s
MySQL root@127.0.0.1:(none)> show grants for 'r1'@'%';
+--------------------------------+
| Grants for r1@%                |
+--------------------------------+
| GRANT USAGE ON *.* TO 'r1'@'%' |
+--------------------------------+

1 row in set
Time: 0.005s
MySQL root@127.0.0.1:(none)> flush privileges;
Query OK, 0 rows affected
Time: 0.007s
MySQL root@127.0.0.1:(none)> show grants for 'r1'@'%';
+--------------------------------+
| Grants for r1@%                |
+--------------------------------+
| GRANT USAGE ON *.* TO 'r1'@'%' |
+--------------------------------+

1 row in set
Time: 0.007s
MySQL root@127.0.0.1:(none)>

[mjonss]

Looks similar to #26703, maybe the same type of fix can be applied?

[ti-srebot]

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