OpenMLDB Weekly：修复集成测试中 SQL 优化过程重复优化子节点的问题

内容简介：OpenMLDB Summary 本周合并 Pull requests 5个，新增Pull requests 6个，关闭 Issues 1个，新增 Issues 5个。总计150个文件修改，新增531行代码，删除432行代码。 Merged Pull Requests fix: remove dup apply p...

OpenMLDB

Summary

本周合并 Pull requests 5个，新增Pull requests 6个，关闭 Issues 1个，新增 Issues 5个。总计150个文件修改，新增531行代码，删除432行代码。

Merged Pull Requests

• fix: remove dup apply pass on the same physical op#453 merged 5 days ago
• feat: revert hadoop common version to 2.7.1 for batch#482 merged 6 days ago
• feat: add taskmanager as java submodule#481 merged 6 days ago
• style: update hybridse header guard style#470 merged 6 days ago
• fix: fix bug in integration-test-src#479 merged 7 days ago 

Open Pull Requests

• fix: create index parse and desc#480 opened 7 days ago
• feat: java sdk add api getTableSchema#483 opened 7 days ago
• feat: rm zk dependency in standalone mode#486 opened 6 days ago
• fix: fix concat join fail#489 opened 6 days ago
• fix: fix can't use broadcast join when open window skew optimization#490 opened 5 days ago
• feat: support plan explain#491 opened 5 days ago

Close Issues

• Bug: fail to compile and run some SQL statements with OpenMLDB-batch when enable batch_window_parallelization#437 closed 5 days ago 

Open Issues

• Feat: Support explain for dataframe in openmldb-batch#488 opened 6 days ago
• Bug: Can't use broadcast join automatically when genAddColumnsDf#487 opened 6 days ago
• Bug: Cannot resolve column name "__CONCATJOIN_INDEX__"#485 opened 6 days ago
• Bug: Failed to merge incompatible data types string and int#484 opened 6 days ago
• `create table` and `create index` should use the same logic to avoid more mistakes.#478 opened 7 days ago 

Contributors

• Chen22 (jingchen2222@gmail.com)
• HuangWei (huangwei@apache.org)
• Kanekanekane (1290561498@qq.com)
• tobe (tobeg3oogle@gmail.com)

Highlights

本周恰逢中国国庆节，预祝大家国庆快乐，OpenMLDB相关的代码修改和Pull-request比同期较少，但仍有重要的bugfix。包括OpenMLDB Batch模块现在可以同时开启窗口并行优化和窗口倾斜优化，同时修复集成测试中发现的SQL优化过程重复优化子节点的情况。本周新增外部开发者参与，在Gitee悬赏Issue中修复了C++ header style重构问题，更多悬赏任务请参考 【 悬赏】第四范式悬赏计划第一期来啦… 。 

欢迎更多开发者关注和参与OpenMLDB开源项目。

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