The format of tiflash version is inconsistent with other components in the system table.

In theinformation_schema.cluster_info table, the format of tiflash version is inconsistent with other components.

others: 5.0.1
tiflash: v5.0.1

mysql> select * from information_schema.cluster_info;
+---------+-----------------+-----------------+---------+------------------------------------------+---------------------------+-----------------+-----------+
| TYPE    | INSTANCE        | STATUS_ADDRESS  | VERSION | GIT_HASH                                 | START_TIME                | UPTIME          | SERVER_ID |
+---------+-----------------+-----------------+---------+------------------------------------------+---------------------------+-----------------+-----------+
| tidb    | 127.0.0.1:4000  | 127.0.0.1:10080 | 5.0.1   | 1145e347d3469d8e89f88dce86f6926ca44b3cd8 | 2021-05-31T17:44:13+08:00 | 3h21m31.67595s  |         0 |
| pd      | 127.0.0.1:2379  | 127.0.0.1:2379  | 5.0.1   | ea1449c7c693d94661b3c60d35b8679ebfb3da34 | 2021-05-31T17:44:04+08:00 | 3h21m40.675956s |         0 |
| tikv    | 127.0.0.1:20160 | 127.0.0.1:20180 | 5.0.1   | e26389a278116b2f61addfa9f15ca25ecf38bc80 | 2021-05-31T17:44:09+08:00 | 3h21m35.675958s |         0 |
| tiflash | 127.0.0.1:3930  | 127.0.0.1:20292 | v5.0.1  | 1821cf655bc90e1fab6e6154cfe994c19c75d377 | 2021-05-31T17:44:21+08:00 | 3h21m23.67596s  |         0 |
+---------+-----------------+-----------------+---------+------------------------------------------+---------------------------+-----------------+-----------+
4 rows in set (0.00 sec)

Start by tracing how the information_schema.cluster_info table obtains and formats the TiFlash VERSION value, then compare it with the TiDB, PD, and TiKV entries shown in the report. Done means TiFlash reports 5.0.1 rather than v5.0.1, with coverage for the displayed query if the relevant test location is found.