Error
Error Code:
1489
MariaDB Error 1489: Invalid Field List in Partitions
Description
This error indicates an attempt to define table partitioning using a list of fields in a `PARTITION BY` clause that is not of type `KEY`. MariaDB specifically restricts multiple field specifications to `KEY` partitioning, disallowing them in `HASH`, `RANGE`, or `LIST` partitioning types. It signifies a syntax mismatch between the chosen partitioning method and the column definition within the partitioning expression.
Error Message
List of fields is only allowed in KEY partitions
Known Causes
3 known causesMultiple Fields in HASH Partition
Attempting to use `PARTITION BY HASH(column1, column2)` which is not allowed. `HASH` partitioning requires a single column or expression.
Invalid Field List in RANGE/LIST
Defining `PARTITION BY RANGE(column1, column2)` or `PARTITION BY LIST(column1, column2)` where only single-column expressions are permitted.
Incorrect Partitioning Type Selection
Choosing a partitioning type (e.g., `HASH`) when the intention was to partition by multiple columns, which necessitates `KEY` partitioning.
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