Error
Error Code:
87
MySQL Error 87: Character Collation Reset Failure
Description
This error occurs when MySQL's internal collation engine fails to reset its state before processing a character that is ignored at the tertiary level of collation comparison. It typically indicates an issue with character set handling or collation rules during string operations, often triggered by specific or malformed character sequences. This is an internal server error related to character processing.
Error Message
Failed to reset before a tertiary ignorable character %s.
Known Causes
3 known causesMismatched Character Set or Collation
The character set or collation configured for the database, table, or column may not be compatible with the data being processed, causing internal collation engine errors.
Problematic String Data
Attempting to store or manipulate strings that contain unusual, malformed, or specific non-ASCII characters that challenge the configured collation rules.
Outdated MySQL Version
Older versions of MySQL may contain bugs in their character set or collation handling, leading to such internal processing failures.
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