MySQL error code
MySQL error 1091
MySQL server error 1091 is ER_CANT_DROP_FIELD_OR_KEY, reported with SQLSTATE 42000.
Can't DROP '%s'; check that column/key exists
| Error | 1091 |
|---|---|
| Name | ER_CANT_DROP_FIELD_OR_KEY |
| SQLSTATE | 42000 |
| Group | Server errors |
In other databases
Source: MySQL 8.4 Error Reference