Error
Error Code:
3623
MySQL Error 3623: Cannot Drop Dynamic UDF
Description
This error occurs when a `DROP FUNCTION` statement is attempted on a User-Defined Function (UDF) that was loaded dynamically from a shared library. MySQL prevents direct dropping of dynamically registered UDFs to ensure system stability and prevent unintended operational issues.
Error Message
DROP FUNCTION can't drop a dynamically registered user defined function
Known Causes
3 known causesAttempting to Drop Dynamic UDF
The `DROP FUNCTION` command was executed against a UDF that was loaded using the `SONAME` clause, indicating it's a dynamically registered function.
Misidentifying UDF Type
The user tried to drop a UDF without realizing it was dynamically loaded, assuming it was a standard or statically linked function.
MySQL System Restriction
MySQL design restricts dropping dynamically loaded UDFs via `DROP FUNCTION` to prevent potential instability and maintain the integrity of loaded libraries.
Solutions
Coming SoonGeneral 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