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Flink CDC这种在dws层sum(a)聚合，通过流读('read.streaming.enabled' = 'true')的方式，算的结果不对吧？+I -U +U 那么对于一个记录，修改后a的值三条，这种在dws聚合的时候怎样处理呢？

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更新时间 2024-04-09 11:29:47

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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。

立即开通

产品控制台

产品文档

实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优