Error
Error Code:
1168
MariaDB Error 1168: Underlying Table Definition Mismatch
Description
MariaDB Error 1168 occurs when the database attempts to open an underlying table referenced by a MERGE table, but encounters issues. This typically indicates that the component table is either missing, has a different schema definition than expected, or is not of the required MyISAM storage engine type, preventing the MERGE table from functioning correctly.
Error Message
Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
Known Causes
4 known causesMissing Underlying Table
One or more of the tables specified in the MERGE table definition do not exist in the database.
Table Definition Mismatch
The schema (columns, data types, order) of an underlying table does not precisely match the MERGE table's expectation or other component tables.
Incorrect Storage Engine
One or more of the tables intended to be part of the MERGE table are not using the MyISAM storage engine, which is a requirement.
Insufficient Permissions
The database user attempting the operation lacks the necessary privileges to access or read the underlying tables.
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