实时计算 Flink版去重的相关内容

阿里云文档 2026-06-02

Hologres+Flink如何进行实时UV精确去重

实时UV计算主要依赖Hologres与Flink结合完成，本文将为您介绍Hologres如何进行实时UV精确去重。

文章 2024-12-17 来自：开发者社区

Flink SQL Deduplication 去重以及如何获取最新状态操作

一、Flink SQL Deduplication 特性高效去重：Flink SQL 的 Deduplication 操作能够快速有效地去除重复数据，确保数据的唯一性。无论是在流处理还是批处理场景下，都能高效地完成去重任务。支持多种数据类型：可以对各种数据类型进行去重操作，包括整数、字符串、日期等。这使得它在处理不同类型的数据时具有很高的灵活性。可配...

问答 2024-07-26 来自：开发者社区

在Flink CDC中使用窗口去重然后进行累计求和计算，输出的求和结果会出现跳变，为什么？

在Flink CDC中使用窗口去重然后进行累计求和计算，输出的求和结果会出现跳变，为什么？请参考图片：

问答 2024-06-09 来自：开发者社区

Flink使用 jdbc_fixed 在同一批次中按照什么条件规则去重呢？

Flink使用 jdbc_fixed 在同一批次中按照什么条件规则去重呢？我们现在发现加了这个配置后，数据不准确。

问答 2023-11-22 来自：开发者社区

这里两个不同版本的FLink 中如果设置了jdbc_fixed模式都会去重吗？如

这里两个不同版本的FLink 中如果设置了jdbc_fixed模式都会去重吗？如果去重是按照什么条件规则去重呢？

问答 2023-10-07 来自：开发者社区

Flink的EXCEPT ALL 作用不是差集不去重吗？

Flink的EXCEPT ALL 作用不是差集不去重吗？这个案例在阿里云flink运行结果为什么有b呢，不应该是cc

问答 2023-09-05 来自：开发者社区

在Flink我用TOPN去重后的数据写到了view里，再用cumulate去累积计算就报错了为什么？

在Flink我使用TOPN去重之后的数据写到了view里面，再使用cumulate去累积计算就报错了，怎么回事？

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更新时间 2024-12-18 08:40:35

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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