Error
Error Code:
1658
MySQL Error 1658: Row Expressions in Single-Field Partitioning
Description
This error indicates an attempt to use row expressions (e.g., `(col1, col2)`) within a `VALUES IN` clause for partition selection when the target table is partitioned by only a single column. MySQL requires multi-field column partitioning to support such row expressions in `VALUES IN` clauses.
Error Message
Row expressions in VALUES IN only allowed for multi-field column partitioning
Known Causes
3 known causesSingle-Column Partition Definition
The table's partitioning scheme is defined on a single column, which conflicts with a query attempting to use multi-field row expressions for partition selection.
Misuse of Row Constructors
A `VALUES IN` clause employs row constructors (e.g., `(col_a, col_b)`) for partition key comparisons against a table partitioned by a single field.
Schema-Query Discrepancy
The query expects or implies multi-field partitioning for its `VALUES IN` row expressions, but the actual table schema uses single-field 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