flink SQL格式的相关内容

阿里云文档 2025-05-09

VVP Flink SQL对接DLF Paimon Catalog

本文为您介绍如何在阿里云实时计算Flink版（以下简称VVP）上通过自定义Paimon Catalog JAR包实现Flink SQL与DLF Paimon Catalog的对接。

阿里云文档 2025-04-22

阿里云Flink SQL如何基于SPL实现弱结构化分析

本文介绍Flink SQL基于SPL实现弱结构化分析的操作步骤。

阿里云文档 2025-04-22

阿里云Flink SQL如何基于SPL实现行过滤与列裁剪

本文介绍Flink SQL用SPL完成行过滤与列裁剪的操作步骤。

阿里云文档 2025-02-25

Flink SQL Join快速入门

Flink SQL支持在动态表上进行复杂的连接操作，提供多种查询语义和join类型。使用时需避免引发笛卡尔积，因为Flink SQL不支持这种操作，会导致查询失败。默认情况下，join顺序未优化。为提高性能，可在FROM子句中调整表顺序，将更新频率最低的表放在前面，最高的放在后面。

阿里云文档 2025-01-21

Flink Hive SQL作业快速入门

实时计算Flink版支持使用Hive方言创建批处理作业，通过兼容Hive SQL语法增强与Hive互操作性，便于从现有Hive作业平滑迁移至实时计算管理控制台。

文章 2024-05-19 来自：开发者社区

实时计算 Flink版操作报错合集之Flink sql-client 针对kafka的protobuf格式数据建表，报错：java.lang.ClassNotFoundException 如何解决

问题一：flink的历史服务historyserver起来之后，看页面请求有一个404是什么情况啊? flink的历史服务historyserver起来之后，页面没有内容，看页面请求有一个404是什么情况啊? ...

文章 2024-05-17 来自：开发者社区

实时计算 Flink版操作报错合集之Flink sql-client 针对kafka的protobuf格式数据建表，报错：java.lang.ClassNotFoundException 如何解决

问题一：Flink CDC我task的这个内存满了在申请资源命令的时候有没有参数可以指定？ Flink CDC我task的这个内存满了除了在flink-conf.yaml中配置在申请资源命令的时候有没有参数可以指定？./bin/yarn-session.sh -jm 2048 -s 2 -tm 16384 我是这么创建集群有没有参数能单独指定这个managed memo...

问答 2024-05-03 来自：开发者社区

实时计算 Flink版sql如何接受kafka中value是[{},{}]格式的数据？

实时计算 Flink版sql如何接受kafka中value是[{},{}]格式的数据？目前找到的全是{}，一条的数据格式

问答 2024-01-17 来自：开发者社区

Flink中sql作业发送json格式到kafka，可以指定json里的key值吗？

问答 2023-11-16 来自：开发者社区

Flink CDC中sql-client针对kafka的protobuf格式数据建表，有人遇到过吗？

Flink CDC中sql-client 针对kafka的protobuf格式数据建表，老是找不到pb类名，报java.lang.ClassNotFoundException 有人遇到过吗？求给点思路，不知道如何解决了？

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更新时间 2024-05-20 13:31:02

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