Error
Error Code:
1168
MySQL Error 1168: MERGE Table Definition Mismatch
Description
MySQL Error 1168 indicates a problem when a MERGE table attempts to access its underlying tables. This error typically occurs because the underlying tables are missing, use an unsupported storage engine, or have structural definitions that do not match the MERGE table's definition.
Error Message
Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
Known Causes
3 known causesUnderlying Table Missing
One or more of the tables specified in the MERGE table's definition do not exist in the database.
Incorrect Storage Engine
An underlying table associated with the MERGE table is not of the MyISAM storage engine type, which is required for MERGE tables.
Table Definition Mismatch
The schema (columns, data types, order) of an underlying table differs from the definition of the MERGE table.
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