实时计算 Flink版设置主键的相关内容

阿里云文档 2025-03-10

如何通过DataStream的方式读写数据

本文为您介绍如何使用DataStream连接器，即通过DataStream的方式读写数据。

问答 2024-06-04 来自：开发者社区

Flink设置之后报错：仅能绑定要插入 LONG 列的 LONG 值主键必须是数字类型吗？

Flink设置之后报错：java.sql.BatchUpdateException: ORA-01461: 仅能绑定要插入 LONG 列的 LONG 值主键必须是数字类型吗？

问答 2023-08-09 来自：开发者社区

Flink CDC中Caused by: org.apache.flink.table.api.ValidationException: 'scan.incremental.snapshot.chunk.key-column' must be set when the table doesn't have primary keys. 这个值怎么设置？scan.incremental.snap...

问答 2023-06-29 来自：开发者社区

Flink CDC中·mysql监听整个库的时候，数据库里新增有一张表没有设置主键~会导致整个？

Flink CDC中·mysql监听整个库的时候，数据库里新增有一张表没有设置主键~会导致整个flink job挂掉··有什么办法可以忽略掉这个错误·让任务正常运行吗？监听整个数据库就是为了动态监听新增的表~ 做排除的话等于要设定table list··就不符合原先的想法了，mysql不设置的情况下~会有一个隐藏主键~所以有一些开发会某些表不做设置

问答 2023-06-29 来自：开发者社区

请教下大佬们，Flink CDC这个chunkKeyColumn不设置为主键会有什么问题呢？

问答 2023-06-29 来自：开发者社区

我现在遇到的Flink CDC问题就是，不设置主键历史数据读取的不对，只有设置了主键才对？

我现在遇到的Flink CDC问题就是，不设置主键历史数据读取的不对，只有设置了主键才对oracle cdc 读取oracle的表，不设置主键，读取的历史数据会有问题吗？这个是使用Flinksql 才有的问题，使用dataStreamApi 不设置主键也是对的

问答 2022-12-20 来自：开发者社区

在用flink cdc做etl插入的时候，出现ON CONFLICT跟我设置的主键字段不一致怎么排查

在用flink cdc做etl插入的时候，出现ON CONFLICT跟我设置的主键字段不一致的时候怎么排查问题呢？我的sink设置的主键是code。 Caused by: java.io.IOException: java.sql.BatchUpdateException: Batch entry 0 INSERT INTO airline(code, en_name, cn_name, sta....

问答 2021-12-03 来自：开发者社区

flink 1.11.1 使用flinksql，jdbc ，后台数据库设置主键的情况下，upsert

"请问使用mysql数据库时，使用flinksql，已经设置主键的情况下，相同主键的记录没有更新，而是越来越多，是目前不支持还是我使用的方法不对呢？版本：flink 1.11.1 关键的2个sql如下 create table open_and_close_terminal_minute_1 ( request_date varchar ,terminal_no varchar ,log...

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更新时间 2024-06-05 22:12:40

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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。

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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