MySQL error code
MySQL error 1859
MySQL server error 1859 is ER_DUP_UNKNOWN_IN_INDEX, reported with SQLSTATE 23000.
Duplicate entry for key '%s'
| Error | 1859 |
|---|---|
| Name | ER_DUP_UNKNOWN_IN_INDEX |
| SQLSTATE | 23000 |
| Group | Server errors |
In other databases
Source: MySQL 8.4 Error Reference