案例背景：想增加一个Flink(1.8)SQL 的UDF,解析如下json中的name字段，name的value是一个数组，想取数组第一个值（其他舍弃），并将其拉平（即没有嵌套，跟其他 (e.g.：appKey) 在同一级别）源json: {"appKey": "qq", "eventId": "18", "name" : [{"a":"jack","b":"mark","c":"tark"....

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更新时间 2024-08-27 09:10:45

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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