Error
Error Code:
1472
MySQL Error 1472: MERGE Table Definition Issues
Description
This error indicates a problem with a MySQL MERGE table, specifically that one or more of its constituent tables are incorrectly defined. It typically occurs when a MERGE table references tables that are non-existent, use a storage engine other than MyISAM, or have differing column structures.
Error Message
Table '%s' is differently defined or of non-MyISAM type or doesn't exist
Known Causes
3 known causesUnderlying Table Missing
A table referenced by the MERGE table's definition does not exist in the database or is inaccessible.
Non-MyISAM Storage Engine
One or more tables intended to be part of the MERGE table are not of the MyISAM storage engine, which is required for MERGE tables.
Inconsistent Table Schema
The column definitions (names, data types, order) of the underlying MyISAM tables are not identical, preventing the MERGE table from unifying them.
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