问题一：Flink CDC里flink-sql 中json_array 类型怎么转成 array类型？ Flink CDC里flink-sql 中 json_array 类型怎么转成 array 类型？参考答案：自定义udf函数。关于本问题的更多回答可点击进行查看： https://developer.al...

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SQL Server CDC是否支持抽取SQL Server视图

问题一：Flink sql有没有函数支持解析一个json string并转成期望的数据类型呢？ Flink sql有没有函数支持解析一个json string并转成期望的数据类型呢？ JSON_QUERY('{"a":[{"c":"c1"},{"c":"c2"}]}', 'lax $.a[*].c') 这个内置函数返回的是string: '["c1","...

文章 2024-05-16 来自：开发者社区

实时计算 Flink版产品使用合集之flink-connector-mysql-cdc 和 flink-connector-sqlserver-cdc 这两个CDC连接器只能选择其中一个使用吗

问题一：flink 官网好慢，有其他查看flink操作文档的地方没？ flink 官网好慢，有其他查看flink操作文档的地方没，兄弟们？尤其是flinksql，得看文档，不然写不出？参考回答：如果你觉得访问 Apache Flink 官方网站的速度较慢，你可以尝试以下方法来获取 Flink 操作文档：镜像网站：有时...

文章 2024-05-16 来自：开发者社区

实时计算 Flink版产品使用合集之当 SQL Server 源数据库中的数据更新后，CDC 吐出的操作（op）是怎样的

问题一：Flink CDC为啥sqlserver的数据更新了，我没有捕捉到u的op呢？ Flink CDC为啥sqlserver的数据更新了，我没有捕捉到u的op呢？之前有遇到过这类问题么？参考回答： ...

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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