实时计算 Flink版自定义source 的相关内容

文章 2024-07-16 来自：开发者社区

实时计算 Flink版产品使用问题之在自定义RichSinkFunction中，如何获取source的schema

问题一：Flink SQL中有没有行转列的函数？ Flink SQL中有没有行转列的函数？参考答案：在Flink SQL中，你可以使用内置的聚合函数GROUP_CONCAT来实现行转列的功能。这个函数会将输入数据按照指定的列进行分组，并将每个分组中的其他列的值拼接成一个字符串。例如，假设你有一个包含姓名和科目的表，并希望按姓名分组，同时将每个分组中...

阿里云文档 2024-07-10

SQL变更的其他兼容性限制

本文为您介绍变更SQL除Query、Source和Sink之外的其他限制。

文章 2024-05-23 来自：开发者社区

实时计算 Flink版产品使用合集之实现自定义 Flink Source和控制数据的下发如何解决

问题一：请教个Flink问题：如果从历史某个时间点进行重新消费，是不是只能将kafka设置为单分区？请教个Flink问题：如果从历史某个时间点进行重新消费，要保证数据全局有序，是不是只能将kafka设置为单分区？参考回答：在Flink从历史某个时间点进行重新消费的情况下，要保证数据全局有序，并不一定要将Kafka设置为单分区。尽管在某些情况下，将...

文章 2023-12-29 来自：开发者社区

Flink自定义source、自定义sink

1.自定义source 继承RichSourceFunctionpublic class TestSource extends RichSourceFunction { private volatile boolean isRunning = true; @Override public void open(Configuration parameters) ...

问答 2023-12-11 来自：开发者社区

Flink CDC基于flink自定义opengauss的source，这里我该怎么去split？

Flink CDC基于flink自定义opengauss的source，这里我该怎么去split，应该查看opengauss哪些特性呢？

问答 2023-12-06 来自：开发者社区

flink 可以自定义source并行读取文件夹吗？因为我需要把文件名称加入到读取到内容里

问答 2023-09-28 来自：开发者社区

Flink自定义的Source从Http接口获取数据，为啥会频繁的FINISHED啊？

Flink自定义的Source从Http接口获取数据，为啥会频繁的FINISHED啊，有大佬遇到过么？

问答 2023-04-23 来自：开发者社区

flink 1.14.6自定义jdbc source 启动报这个,哪位知道原因啊?

Caused by: java.lang.IllegalStateException: Detected an UNBOUNDED source with the 'execution.runtime-mode' set to 'BATCH'. This combination is not allowed, please set the 'execution.runtime-mode' to ....

问答 2022-07-07 来自：开发者社区

请教各位大佬，flink kafka 自定义source 如何保证精准一次消费

问答 2022-06-21 来自：开发者社区

有没有大佬实现Flink自定义es source的

如题

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更新时间 2024-07-17 09:27:55

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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