Error
Error Code:
39P03
PostgreSQL Error 39P03: Invalid Event Trigger Protocol
Description
This error indicates that an event trigger in PostgreSQL encountered an issue while attempting to execute its associated function, violating the expected communication protocol. It typically occurs when the function invoked by the trigger does not conform to the specific interface or data exchange rules required by the event trigger mechanism.
Error Message
event trigger protocol violated
Known Causes
3 known causesMismatched Function Signature
The function invoked by the event trigger does not have the correct signature or parameter list expected by the PostgreSQL event trigger mechanism.
Invalid Return Data Format
The function associated with the event trigger returns data that does not conform to the expected structure or type for event trigger functions.
External Routine Malfunction
Issues within the external routine (e.g., PL/pgSQL, C, Python function) itself, such as internal errors or unexpected termination, disrupt the event trigger protocol.
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