MySQL error code
MySQL error 1644
MySQL server error 1644 is ER_SIGNAL_EXCEPTION, reported with SQLSTATE HY000.
Unhandled user-defined exception condition
| Error | 1644 |
|---|---|
| Name | ER_SIGNAL_EXCEPTION |
| SQLSTATE | HY000 |
| Group | Server errors |
Source: MySQL 8.4 Error Reference