Error
Error Code:
1655
MariaDB Error 1655: Excessive Partitioning Columns
Description
This error occurs when you attempt to create or alter a table with a partitioning scheme that uses too many columns in its partitioning expression. MariaDB has internal limits on the number of columns that can be included in a partitioning key, depending on the partitioning type, which this operation has exceeded.
Error Message
Too many fields in '%s'
Known Causes
3 known causesExceeding HASH/KEY Partitioning Column Limit
MariaDB imposes a maximum number of columns (typically 16) that can be used in the partitioning expression for `HASH` or `KEY` partitioning types.
Too Many Columns in `COLUMNS` Partitioning
Even when using `RANGE COLUMNS` or `LIST COLUMNS` partitioning, which support multiple columns, the total number of columns specified in the partitioning key can still exceed internal limits.
Complex Partitioning Key Design
Designing a partitioning key with an overly complex combination of columns, or more columns than are practical or allowed, can collectively trigger this error.
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