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文章 2022-02-16 来自：开发者社区

跟传统的关系型数据库类似，Flink提供了优化器“hint”（提示）以告诉优化器选择一些执行策略。目前优化提示主要针对批处理中的连接（join）。在批处理中共有三个跟连接有关的转换函数： join：默认为等值连接（Equi-join），维基百科将其归类为内连接（inner join）的一种 https://en.wikipedia.org/wiki/Join_(SQL)； outerJoin：.....

问答 2021-12-09 来自：开发者社区

Flink中的Join 批处理优化具体是什么？

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跳转至： GO

更新时间 2025-04-01 12:39:24

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实时计算Flink版

阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，完全兼容开源的Apache Flink，比开源性能提升2～3倍，提供了完整的告警、监控、日志的解决方案、提升开发效率且无运维成本，并有社区专家提供技术支持。

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MySQL 到 Hologres

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功能对比

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作业自动调优