Error
Error Code:
1164
MySQL Error 1164: Incompatible Table Type AUTO_INCREMENT
Description
This error indicates that the storage engine chosen for your table does not support the AUTO_INCREMENT attribute for a column, or it's not configured correctly to allow it. It typically occurs when attempting to create or alter a table where a column is designated as AUTO_INCREMENT but the underlying table type or its definition has limitations.
Error Message
The used table type doesn't support AUTO_INCREMENT columns
Known Causes
3 known causesIncompatible Storage Engine
The table is being created or altered with a storage engine (e.g., MEMORY, or specific configurations of MyISAM) that does not inherently support AUTO_INCREMENT columns.
Missing Key Constraint
For many storage engines, an AUTO_INCREMENT column must be part of a PRIMARY KEY or a UNIQUE index. This error can occur if such a key is missing.
Non-Integer Data Type
The column designated as AUTO_INCREMENT is not an integer data type (e.g., INT, BIGINT), which is a fundamental requirement for this attribute.
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