Error
Error Code:
1686
MySQL Error 1686: Binlog Direct Flag Change Forbidden
Description
This error occurs when a stored function or trigger attempts to modify the `binlog_direct_non_transactional_updates` system variable or similar binlog direct flags. MySQL prevents these changes within stored routines to maintain data consistency and replication integrity. It indicates an attempt to dynamically control binary logging behavior in an unsupported context.
Error Message
Cannot change the binlog direct flag inside a stored function or trigger
Known Causes
3 known causesDirect Binlog Flag Modification
The stored function or trigger contains a `SET` statement that directly attempts to change `binlog_direct_non_transactional_updates` or a similar binlog direct flag.
Invoking Restricted Operations
The routine calls another stored procedure or function that, in turn, attempts to modify the binlog direct flag, which is disallowed in the current context.
Incorrect Binlog Control Context
Logic intended to control binary logging behavior is mistakenly placed within a stored function or trigger, where such modifications are explicitly prohibited by MySQL.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service