Error
Error Code:
1660
MariaDB Error 1660: Partitioning Fields Too Long
Description
This error indicates that the combined length of the columns designated as partitioning fields for a table exceeds MariaDB's maximum allowed limit. It typically occurs when attempting to create or alter a partitioned table with too many columns, or columns with excessively large data types, defined in the PARTITION BY clause.
Error Message
The total length of the partitioning fields is too large
Known Causes
3 known causesExcessive Partition Key Columns
Including a large number of columns in the PARTITION BY clause can quickly sum up to exceed the total length limit.
Large Data Types in Key
Using columns with large data types (e.g., VARCHAR(255), or specific character sets that require more bytes per character) for partitioning significantly contributes to the overall length.
Misunderstood Field Length Calculation
The effective length of partitioning fields, especially for variable-length types or multi-byte character sets, might be underestimated, leading to an unexpected limit transgression.
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