实时计算 Flink版延迟join 的相关内容

[帮助文档] 维表JOIN语句

对于每条流式数据，可以关联一个外部维表数据源，为实时计算Flink版提供数据关联查询。

[帮助文档] 如何使用双流JOIN语句,有哪些语法和示例

Flink SQL支持对动态表进行复杂而灵活的连接操作，本文为您介绍如何使用双流JOIN语句。

实时数据分析：使用Flink实时发现最热Github项目

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实时数据接入：5分钟上手 Flink MySQL 连接器

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大数据知识图谱系列—基于ELK+Flink日志全观测最佳实践

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[帮助文档] Join修改的可兼容性和不可兼容性详情

本文为您介绍Regular Join、Interval Join、Temporal Join和Lookup Join修改的可兼容性和不可兼容性详情。

Flink 维表延迟join是什么回事呢？

大家好，请教一个问题，流表和维表在JOIN时，如果流表的数据没在维表中时，能否进行延迟join，比如，每10分钟进行match一下，连续match6次都没有match上的话，丢弃该数据。这个场景怎么通过flink SQL或UDF实现，目前是通过timer来实现的，感觉有些麻烦。 *来自志愿者整理的...

为什么Flink 维表延迟join？

我么生产环境同样遇到这种问题，因为上有流数据到了，但是维表数据未更新导致丢失部分数据，请问大家现在有好的解决方案去解决Flink SQL 维表延迟Join的问题了吗？有解决方案的小伙伴能分享下嘛？*来自志愿者整理的flink邮件归档

flink sql维表延迟join如何实现？

延迟join主要是为了解决维表数据后于事实表数据到达问题。java代码可以实现，那flink sql这块能否通过sql hint解决呢？有没有示例？*来自志愿者整理的flink邮件归档

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更新时间 2023-05-12 14:43:57

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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