Error
Error Code:
1070
MariaDB Error 1070: Exceeding Index Column Limit
Description
This error occurs when attempting to create or modify a table that defines an index with more columns (key parts) than MariaDB's engine limit allows. It specifically indicates that the maximum number of parts for a single index has been exceeded, preventing the table or index creation.
Error Message
Too many key parts specified; max %d parts allowed
Known Causes
3 known causesEngine-Specific Index Limit
MariaDB storage engines (like InnoDB or MyISAM) have a hard limit on the number of columns that can be part of a single index (typically 16).
Overly Complex Composite Index
Designing an index with too many individual columns to cover a wide range of queries can inadvertently exceed the key part limit.
Suboptimal Schema Design
A database schema design that attempts to include an excessive number of columns in an index often indicates a need for schema re-evaluation or alternative indexing strategies.
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