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...

问答 2022-02-15 来自：开发者社区

flink cdc stream api想自定义schema解析，有定义接口吗？#Flink

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更新时间 2024-07-17 09:14:06

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作业自动调优