Error
Error Code:
3585
MySQL Error 3585: Invalid Window Frame End
Description
MySQL Error 3585 occurs when a window function's `ROWS` or `RANGE` frame clause is defined with `UNBOUNDED PRECEDING` as its end boundary. This is syntactically and logically incorrect, as a frame's end point cannot precede its start point. The error indicates an issue with the SQL query's window function definition, preventing its execution.
Error Message
Window '%s': frame end cannot be UNBOUNDED PRECEDING.
Known Causes
3 known causesIncorrect Frame Boundary Definition
Using `UNBOUNDED PRECEDING` as the `FRAME_END` in a window function's `ROWS` or `RANGE` clause, which is logically invalid because a frame cannot end before its start.
Misunderstanding Window Frame Syntax
Developers may confuse `UNBOUNDED PRECEDING` with `UNBOUNDED FOLLOWING` or `CURRENT ROW` when defining the end point of a window frame.
Typographical Error in SQL Query
A simple typo or an accidental copy-paste error might introduce `UNBOUNDED PRECEDING` into the `FRAME_END` clause of a window function.
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