Error
Error Code:
1499
MariaDB Error 1499: Too Many Table Partitions
Description
This error indicates that a CREATE TABLE or ALTER TABLE statement attempted to define more partitions (including subpartitions) than the maximum allowed by MariaDB. It typically occurs when designing very large tables with complex partitioning schemes that exceed system limits, preventing the table from being created or altered.
Error Message
Too many partitions (including subpartitions) were defined
Known Causes
4 known causesExceeding System Partition Limit
MariaDB has a hard limit on the total number of partitions and subpartitions a single table can have, often around 8192. Attempting to define more than this limit will trigger the error.
Overly Granular Partitioning Strategy
Designing a partitioning scheme with too many small partitions, especially when using complex expressions or a wide range of values for partitioning keys, can quickly exhaust the allowed partition count.
Complex Subpartitioning Configurations
When using subpartitioning, the total number of partitions is the product of top-level partitions and subpartitions. A large number of top-level partitions multiplied by several subpartitions can easily exceed the overall limit.
Inappropriate Partition Key Selection
Choosing a partitioning key with an extremely high cardinality for range or list partitioning, or an unsuitable key for hash/key partitioning, can inadvertently lead to an excessive number of partitions.
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