MySQL error code
MySQL error 1089
MySQL server error 1089 is ER_WRONG_SUB_KEY, reported with SQLSTATE HY000.
Incorrect prefix key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique prefix keys
| Error | 1089 |
|---|---|
| Name | ER_WRONG_SUB_KEY |
| SQLSTATE | HY000 |
| Group | Server errors |
Source: MySQL 8.4 Error Reference