实时计算 Flink版union all 的相关内容

阿里云文档 2024-06-05

UnionAll变更兼容性

本文为您介绍Union All变更的可兼容性和不可兼容性详情。

问答 2023-10-18 来自：开发者社区

实时计算 Flink版 sql retract流和lookup维表流union all会是什么情况？

实时计算 Flink版 sql retract流和lookup维表流union all会是什么情况？都会把数据保存下来？

问答 2023-05-09 来自：开发者社区

在 ASCM上使用 flink sql 时，对视图做union all ，出现数据错误输出的情况

场景如下，在使用flink sql 时，使用一张流表(Stream_Test)和一张维表(Dim_Test)进行关联；表结构： Stream_Test(cust_id, cust_name, eventTime) Dim_Test (pk, Time_Flag) 根据业务场景，需要以不同的条件进行关联得到结果，再进行合并； --该视图可以关联上，并得到结果（假设得到结果为1条） CRAETE.....

问答 2021-12-09 来自：开发者社区

Flink 中的UNION 和 UNION ALL有什么区别？

问答 2021-12-08 来自：开发者社区

Flink SQL中的UNION 和 UNION ALL的作用是什么？

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更新时间 2024-04-30 03:22:20

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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