2026

Category

Description

New features & optimizations

Added off-heap memory management for primary key indexes.

Added support for the 2-core, 8 GB specification for columnar nodes.

Optimized synchronization performance.

Optimized columnar index synchronization performance.

Optimized purge cleanup mechanism.

Optimized the transaction-too-large error when deleting columnar indexes.

Bug fixes

Fixed an issue where residual files were left behind after a compaction failure.

Fixed an issue where the columnar engine caused high CPU usage due to idle spinning.

Fixed an issue where Major Compaction was not executed when the columnar engine experienced excessive latency.

Fixed an issue where CSV files in the columnar engine were not cleaned up in time.

Fixed a lock leak issue caused by deadlocks in the columnar engine.

Fixed a primary key index purge failure.

Fixed an error that occurred when the DEL file length exceeded the INT range.

Fixed DDL support issues for online modify column (OMC) in the columnar engine.

Fixed a slow SQL issue during full data retrieval.

Category

Description

New features & optimizations

Optimized the purge method.

Optimized CCI data synchronization performance.

Fixed an issue where failed compactions left residual files.

Category

Description

New features & optimizations

Added off-heap memory management for the primary key index.

Optimized CCI data synchronization performance.

Optimized the CCI deletion process to prevent "transaction too large" errors.

Bug fixes

Fixed an error where the length of a .del file exceeded the integer range.

Fixed a deadlock that caused a lock leak on column store nodes.

Fixed high CPU utilization caused by idle spinning on a column store node.

Improved the cleanup of SV files on column store nodes.

Fixed an issue that prevented a major compaction on a column store node during periods of excessively high latency.

Category

Description

New features & optimizations

Added support for the 2-core, 8 GB specification for column store nodes.

Bug fixes

Fixed a DDL issue on column store nodes for the online modify column (OMC) feature.

Fixed an issue that caused slow SQL queries during a full data fetch.

Category

Description

New features & optimizations

You can now create a new CCI on an archived table.

The SPLIT PARTITION command now supports multiple partitions.

Optimized CCI data synchronization performance.

Bug fixes

Fixed an issue where a DDL statement that contains a comment could cause a parsing error.

Fixed a CCI synchronization failure caused by the incorrect detection of auxiliary options for ALTER TABLE operations.

Category

Description

New features & optimizations

You can now create a new CCI on an archived table.

The SPLIT PARTITION command now supports multiple partitions.

Extended the data purge retention period for the primary key index to 7 days.

Added a CSV file caching feature for CCI.

Optimized full data synchronization to address long-tail issues.

Optimized the performance of CCI delete operations for large tables.

Optimized CCI data synchronization performance.

Optimized the cache performance of the primary key index.

Bug fixes

Fixed an issue where a DDL statement that contains a comment could cause a parsing error.

Fixed an issue where the columnar store index (CCI) failed to correctly recognize auxiliary options of the ALTER TABLE operation, which resulted in a synchronization failure.

Fixed an issue where processing an empty data file caused a "file not found" error.

Fixed a computation error for TIMESTAMP type partitions.