1. Statistics
A total of 12 authors submitted 30 Commits. Thanks to the contributions of the following authors: caoyang10, HaiBo Li, HappenLee, Lijia Liu, Mingyu Chen, xinghuayu007, xueyan.li, xy720, Yingchun Lai, Youngwb, ZhangYu0123, Zhengguo Yang 4 new features were added this week, 11 bugs were fixed, and 7 features were improved. 2. Main progress 2.1 New Features (Merged) https://github.com/apache/incubator-doris/pull/4428 BE added tablet-level monitoring indicators, including the amount of scanned data and the number of rows, and the amount of written data and the number of rows. Help locate hot tablet. https://github.com/apache/incubator-doris/pull/4330 Support SQL level and Partition level result Cache. https://github.com/apache/incubator-doris/pull/4256 For tables of the UniqueKey model, the Sequence column can be specified when importing. Doris will judge the order of the data according to the value of the Sequence column to ensure the order of the data when it is imported. https://github.com/apache/incubator-doris/pull/4504 Support to add Optimizer Hints of type SET_VAR in the Select statement to set session variables. 2.2 New Features (WIP) https://github.com/apache/incubator-doris/pull/4430 Implementation of related functions of ODBC external table building statement. 2.3 Bug fix https://github.com/apache/incubator-doris/pull/4486 Fix the problem that BE crashes when using Load Error Hub function when WITH_MYSQL compilation option is not added. https://github.com/apache/incubator-doris/pull/4484 Fix the problem of error reporting when using @@sql_mode environment variable in SQL https://github.com/apache/incubator-doris/pull/4491 Fix the problem of inconsistent splitting behavior in Spark Load and Broker Load that split the same column. https://github.com/apache/incubator-doris/pull/4511 Fix the problem of BE downtime caused by querying the information_schema.columns table. https://github.com/apache/incubator-doris/pull/4513 Fix some problems in the persistence of rowset metadata in historical versions. https://github.com/apache/incubator-doris/pull/4495 Fix the problem that the str_do_date() function has inconsistent behavior on the FE side and the BE side. https://github.com/apache/incubator-doris/pull/4526 Fix the issue of BE downtime caused by some historical data conversion when performing linked schema change. https://github.com/apache/incubator-doris/pull/4528 Fix the problem that Spark Load stays in the ETL stage after FE restart. https://github.com/apache/incubator-doris/pull/4531 Fixed an issue that caused unreadable data when the delete condition contained "\n". https://github.com/apache/incubator-doris/pull/4536 Fix the problem that the Spark Load job in PENDING state cannot be cancelled. https://github.com/apache/incubator-doris/pull/4536 Fix the problem of inconsistent behavior when splitting columns between Spark Load and other import methods. 2.4 Functional improvements https://github.com/apache/incubator-doris/pull/4482 Optimize query execution plan: When the bucket column of the table is a subset of the GroupBy column in SQL, reduce the data shuffle step. https://github.com/apache/incubator-doris/pull/4439 Optimize the checking process and error message of the rand() function in the query analysis stage. https://github.com/apache/incubator-doris/pull/4497 When SQL execution specifies the execution mode of join (Join Hint), the Colocation Join function will be disabled by default. https://github.com/apache/incubator-doris/pull/4429 Enhance the function of parse_url(), support lowercase, support parsing port. https://github.com/apache/incubator-doris/pull/4440 Optimized the use of threads on the BE side. https://github.com/apache/incubator-doris/pull/4514 Dynamic partition supports hour level. https://github.com/apache/incubator-doris/pull/4533 HTTP interface on BE side supports gzip compression 3. List of main features under development https://github.com/apache/incubator-doris/issues/4376 Support to access external tables through ODBC protocol. https://github.com/apache/incubator-doris/issues/4308 Support the separation of the front-end UI and back-end structure of the FE module, providing a more powerful UI interface https://github.com/apache/incubator-doris/issues/3926 Support large query order placement https://github.com/apache/incubator-doris/issues/4283 Support Result Cache function -- 此致！Best Regards 陈明雨 Mingyu Chen Email: chenmin...@apache.org
