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Summary
本周合并 Pull requests 18 个，新增 Pull requests 9 个，敞开 Issues 10 个，新增 Issues 26 个。总计 94 个文件批改，新增 1502 行代码，删除 7764 行代码。公布 Release 版本 v0.2.3。理解 OpenMLDB
Merged Pull Requests
• docs: add the demo link in readme#305
• docs: add a new logo#364
• refactor: refact AppendEntries in log replicator#327
• fix: sql and ns client desc result#341
• docs: add compile doc#346
• docs: new shilds#355 merged
• docs: added new shields#348
• fix: importer fix and doc#328
• build(deps): bump hive-exec from 3.0.0 to 3.1.1 in /java/openmldb-import#307
• update the blog link#299
• refactor: remove unused scripts#343
• fix: revert spark and hadoop version#344
• build(deps-dev): bump junit from 4.11 to 4.13.1 in /java/openmldb-import#308
• feat: update spark and hadoop version#332
• feat: update openmldb version#310
• feat: add offline update for changelog#326
• build(hybridse): prepare version to 0.2.3#325
• feat: build nearline tablet framework#246
Open Pull Requests
• feat: add java common lib#347
• feat: support column query with the same name in window skew optimization#349
• feat: enhance plan optimization for group and filter#350
• feat: add batchjob module#359
• feat: add task manager module#361
• ci: openmldb java deploy workflow#366
• feat: add openmldb jmh#367
• test: modify test case#368
• update readme_add ai pipeline#370
Close Issues
• docs: Add a new OpenMLDB logo#363
• bug: sql client desc result#331
• Add compile doc#345
• 在 readme 里增加知乎、oschina 等媒体链接 #298
• Support reading and write tables in hive metastore catalog#202
• Remove unused scripts#337
• Update Spark version to 3.1.2#333
• TestWindowUnion failed: 20 did not equal 10 (TestWindowUnion.scala:58)#122
• Update the verison of openmldb-jdbc, openmldb-native and openmldb-import before auto release#324
• Build NearLineTablet framework#218
Open Issues
• feat: support and validate query table with multiple-levels path#365
• feat: refactor of sql query router#362
• Add TaskManager service to submit OpenMLDB Batch jobs#360
• ut: so many unit test have memory leak, we should use sanitizer to check#358
• bug: cicd build failed but report ok#357
• Multiple columns with the same name can’t execute when last join and over window#356
• bug: cicd python test#354
• bug: create index can’t set ttl with no units#353
• Add OpenMLDB docs#352
• Add module for OpenMLDB Batch to run custom SQL and submit by TaskManager#351
• Add java common lib#342
• Replace rtidb to openmldb in some files#340
• Enable the unit test of TestWindowUnion#339
• Test and register the iceberg tables without using default Spark catalog#338
• Enable UnsafeRowOpt by default and resolve the related issues#336
• Enable WindowSkewOpt by default and resolve the running issues#335
• Add the unit test for physical nodes like GroupByAgg for offline#334
• Add deployment script#330
• Reduce the size of docker image#329
• Automatic packaging openmldb-import after tag creation#323
• Add exit command for sql_client#322
• Not able to find out SQL syntax docs from readme.#321
• feat: support distributed query on BatchMode under some restrictions#318
• feat: engine plan optimization for where and group with the same partition#317
• feat: support integration test for java/python sdk and offline batch#316
• enable python style check via pylint#315
Contributors
• aceforeverd(teapot@aceforeverd.com)
• dependabotbot
• dl239(dl239@126.com)
• HuangWei(huangwei@apache.org)
• imotai(codego.me@gmail.com)
• Lucifer(63491234+ashish-patwal@users….)
• luyuxiao211(79981940+luyuxiao211@users.no…)
• Rohan Sharma(rhnsharma5113@gmail.com)
• tobe(tobeg3oogle@gmail.com)
• Wang ZeKai(1290561498@qq.com)
• wuyou10206(zw1020688@163.com)
• xuman2019(52193163+xuman2019@users.nore…)
Highlights
本周公布 Release v0.2.3 版本，在性能个性、性能稳定性上都在稳步晋升。在线存储引擎数据导入工具反对批量导出（Bulk load），在线计算引擎批处理模式（Batch mode）反对带参数的 SQL 查问，离线存储引擎反对数仓元数据服务（Hive metastore）以及数据湖存储格局（Apache Iceberg），数据分析能力反对 Trino 计算集群，离线计算引擎反对全局排序节点（SortByNode）。修复大量性能和性能相干的 Bug，如端到端离线计算引擎测试时应用雷同 SQL 导致的谬误，在线存储引擎增加索引应用 desc 来展现 TTL 值有误等等。SQL 语法也有拓展反对 nvl、nvl2 等函数，反对”&”、“|”、“^”、“~“等位操作函数，反对 Between 谓词逻辑等。具体 Release 日志请参考 Release OpenMLDB v0.2.3 · 4paradigm/OpenMLDB。
OpenMLDB 整体架构也在降级重构中，全新的近实时存储服务 Nearline Tablet 和批处理工作治理服务 TaskManager 也在初步设计和实现中，新增模块在 OpenMLDB 的易用性和可拓展性上有进一步加强，置信在不久的 v0.3.0 正式版中能够与开发者见面。
欢送更多开发者关注和参加 OpenMLDB 开源我的项目。
