flink SQL函数的相关内容

问答 2023-12-06 来自：开发者社区

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","c2"]'，而我期望返回的是ARRAY: ["c1","c2"]

问答 2023-12-03 来自：开发者社区

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","c2"]'，而我期望返回的是ARRAY: ["c1","c2"]所以期望的sql长这样select parse_json( JSON_QU...

阿里云文档 2023-11-08

SQL分析预置的函数类型及其使用相关说明,包括日期与时间函数、数学函数、窗口函数、聚合函数和字符串函数,以及除上述函数之外的支持其他业务场景的函数_物联网平台(IoT)

SQL分析自身预置了诸多函数，可以满足大部分业务场景的数据处理需求。本文为您介绍SQL分析提供的函数类型及函数使用相关说明。

问答 2023-10-18 来自：开发者社区

异步io 可以作为自定义函数在flink sql 中注册作为函数正常使用吗？

异步io 可以作为自定义函数在flink sql 中注册作为函数正常使用吗？官网没找到具体说明

问答 2023-09-12 来自：开发者社区

flink sql 有类似汇总获取一个字段明细的函数吗？

flink sql 有类似mysql里的GROUP_CONCAT这样汇总获取一个字段明细的函数吗？

阿里云文档 2023-08-31

这是一篇关于SQL分析提供的常见其他函数的文档

SQL分析提供了开发过程中常见的其他函数，您可以根据实际需要选择合适的函数。本文为您提供SQL分析支持的CAST、DECODE、LEAST等函数的命令格式、参数说明及示例。

问答 2023-08-29 来自：开发者社区

使用内置的flink SQL 函数 FROM_unixtime 报错这种一般是什么问题呀？

使用内置的flink SQL 函数 FROM_unixtime 报错这种一般是什么问题呀？No match found for function signature FROM_UNIXTIME

问答 2023-08-28 来自：开发者社区

Flink CDC sql中有实现类似collect_set的函数吗？

问答 2023-08-28 来自：开发者社区

在Flink SQL中向Doris表插入数据时，sql中可以直接使用Doris中的函数吗？

问答 2023-08-28 来自：开发者社区

Flink sql 中怎么将bin函数转成的二进制数据转为数组？

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更新时间 2024-06-12 18:59:14

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