我想在一个包含group by语句的表中在Flink SQL中进行简单查询。但是在结果中，group by语句中指定的列存在重复的行。那是因为我使用的是流媒体环境并且它不记得状态吗？ final StreamExecutionEnvironment env = StreamExecutionEnvi...

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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