Error
Error Code:
39P02
PostgreSQL Error 39P02: SRF Protocol Violation
Description
This error indicates that a Set-Returning Function (SRF) has violated its expected protocol during execution or result generation. It typically occurs when an SRF, often user-defined, does not correctly manage its internal state or return its results according to PostgreSQL's internal SRF interface. This can lead to unexpected behavior during function invocation and database processing.
Error Message
srf protocol violated
Known Causes
3 known causesIncorrect SRF State Management
A Set-Returning Function (SRF) might fail to correctly initialize, iterate, or finalize its internal state, leading to a breach of the expected protocol.
Improper Result Handling
The SRF might not yield results in the expected manner, return an incorrect number of columns, or terminate its result set incorrectly, causing the database to detect a protocol breach.
Language-Specific SRF Implementation Issues
Errors in SRFs written in languages like PL/pgSQL, C, or other procedural languages can arise from incorrect use of language-specific constructs for SRF implementation.
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