Error
Error Code:
3575
MySQL Error 3575: Recursive CTE Function Restriction
Description
This error indicates that a recursive Common Table Expression (CTE) in MySQL is attempting to use aggregation functions (like SUM(), COUNT()) or window functions (like ROW_NUMBER()) within its recursive query block. MySQL's implementation explicitly prohibits these functions in the recursive part to maintain predictable behavior and efficient execution.
Error Message
Recursive Common Table Expression '%s' can contain neither aggregation nor window functions in recursive query block
Known Causes
3 known causesUsing Aggregation in Recursive Part
Including aggregate functions (e.g., SUM, COUNT, AVG) directly within the SELECT list or WHERE clause of the recursive member of a CTE.
Using Window Functions in Recursive Part
Implementing window functions (e.g., ROW_NUMBER, RANK, LEAD) within the SELECT list or WHERE clause of the recursive query block.
Incorrect Recursive Logic Design
Designing a recursive query that inherently requires aggregation or windowing for its step-by-step logic, which conflicts with MySQL's CTE rules.
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