MySQL error code
MySQL error 3691
MySQL server error 3691 is ER_REGEXP_MISMATCHED_PAREN, reported with SQLSTATE HY000.
Mismatched parenthesis in regular expression.
| Error | 3691 |
|---|---|
| Name | ER_REGEXP_MISMATCHED_PAREN |
| SQLSTATE | HY000 |
| Group | Server errors |
Source: MySQL 8.4 Error Reference