Error
Error Code:
4114
MySQL Error 4114: Recursive CTE in EXCEPT/INTERSECT
Description
This error occurs when a recursive Common Table Expression (CTE) is used as an operand within an `EXCEPT` or `INTERSECT` set operation in MySQL. MySQL's implementation of set operations does not support direct recursive table references in this context, leading to a SQL syntax or logical constraint violation.
Error Message
Recursive table reference in EXCEPT or INTERSECT operand is not allowed.
Known Causes
3 known causesDirect Recursive CTE Use
A `WITH RECURSIVE` Common Table Expression is directly referenced as an operand in an `EXCEPT` or `INTERSECT` statement.
Unsupported SQL Construct
The query attempts a combination of recursive CTEs and set operations (`EXCEPT`/`INTERSECT`) that MySQL does not support directly.
Logical Design Flaw
The query's logical structure incorrectly places a recursive CTE within a disallowed set operation context.
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