Error
Error Code:
1472
MariaDB Error 1472: Invalid Merge Table Definition
Description
This error typically arises when attempting to create or use a MERGE table in MariaDB. It indicates that one or more of the underlying tables specified for the MERGE table either do not exist, have a different schema definition than expected, or are not of the required MyISAM storage engine type. This often happens when creating MERGE tables over InnoDB tables or when schemas diverge.
Error Message
Table '%s' is differently defined or of non-MyISAM type or doesn't exist
Known Causes
3 known causesMissing Underlying Table
The table referenced in the UNION clause of the MERGE table definition does not exist in the database.
Non-MyISAM Storage Engine
One or more tables intended to be part of the MERGE table are not using the MyISAM storage engine, which is a strict requirement for MERGE tables.
Inconsistent Table Definitions
The schemas of the underlying tables in the UNION clause are not identical, meaning column names, data types, or order differ.
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