Improvements
- Multi-table materialized views created based on external catalogs support query rewrite. #11116 #15791
- Allows users to specify a collection period for automatic CBO statistics collection, which prevents cluster performance jitter caused by automatic full collection. #14996
- Added Thrift server queue. Requests that cannot be processed immediately during INSERT INTO SELECT can be pending in the Thrift server queue, preventing requests from being rejected. #14571
- Deprecated the FE parameter default_storage_medium. If storage_medium is not explicitly specified when users create a table, the system automatically infers the storage medium of the table based on BE disk type. #14394
Bug Fixes
The following bugs are fixed:
- Null pointer exception (NPE) caused by SET PASSWORD. #15247
- JSON data with empty keys cannot be parsed. #16852
- Data of invalid types can be successfully converted into ARRAY data. #16866
- Nested Loop Join cannot be interrupted when an exception occurs. #16875
Behavior Change
- Deprecated the FE parameter default_storage_medium. The storage medium of a table is automatically inferred by the system. #14394