在 Apache Flink SQL 中，并没有内置的 GROUP_CONCAT 函数。但是，您可以通过以下两种方式实现类似的功能：自定义聚合函数：您可以编写一个自定义的聚合函数来实现 GROUP_CONCAT 功能。这个函数将根据需要，将每个组中的值连接为一个字符串。下面是一个简单的示例代码： import ...

问答 2024-02-01 来自：开发者社区

Flink CDC里flink sql 有啥内置函数可以这么做？

Flink CDC里flink sql 有啥内置函数可以将 51,51 变成 [51,52] 吗？

问答 2024-01-09 来自：开发者社区

spark和flink sql取hash的函数是什么啊？需要取完的值是一样的，这个自带的函数有吗？

请问在spark和flink sql中，是否有函数可以取hash值？并且需要取完的值是一样？

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更新时间 2024-07-31 09:10:35

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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。

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实时同步

MySQL 到 Hologres

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功能对比

开源Flink对比

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作业自动调优