Release Date: August 11, 2025
Feature Enhancements
- Lake Compaction adds Segment write time statistics. #60891
- Disable inline mode for Data Cache writes to avoid performance degradation. #60530
- Iceberg metadata scan supports shared file I/O. #61012
- Support termination of all PENDING ANALYZE tasks. #61118
- Force reuse when there are too many CTE nodes to avoid excessive optimization time. #60983
- Added
BALANCEtype to cluster balance results. #61081 - Optimized materialized view rewrite for external tables. #61037
- Default value of system variable
enable_materialized_view_agg_pushdown_rewriteis changed totrue, enabling aggregation pushdown for materialized view queries by default. #60976 - Optimized partition statistics lock competition. #61041
Bug Fixes
The following issues have been fixed:
- Inconsistent Chunk column size after column pruning. #61271
- Synchronous execution of partition statistics loading may cause deadlocks. #61300
- Crash when
array_mapprocesses constant array columns. #61309 - Setting an auto-increment column to NULL results in the system mistakenly rejecting valid data within the same Chunk. #61255
- The actual number of JDBC connections may exceed the
jdbc_connection_pool_sizelimit. #61038 - FQDN mode did not use IP addresses as cache map keys. #61203
- Array column cloning error during array comparison. #61036
- Deploying serialized thread pool blockage led to query performance degradation. #61150
- OK hbResponse not synchronized after heartbeat retry counter reset. #61249
- Incorrect result for the
hour_from_unixtimefunction. #61206 - Conflicts between ALTER TABLE jobs and partition creation. #60890
- Cache does not take effect after upgrading from v3.3 to v3.4 or later. #60973
- Vector index metric
hit_countis not set. #61102 - Stream Load transactions fail to find the coordinator node. #60154
- BE crashes when loading OOM partitions. #60778
- INSERT OVERWRITE failed on manually created partitions. #60750
- Partition creation failed when partition names matched case-insensitively but had different values. #60909
- The system does not support PostgreSQL UUID type. #61021
- Case sensitivity issue with column names when loading Parquet data via
FILES(). #61059