Flink使用session 执行 select 语句的时候报以下这个错误是为啥？ Fetch preview data failed, no started flag file. ns:orange-flink2-default, session:select, queryId:9862fa6f...

Flink CDC sql中：select * from * 区别在哪里？

问题1:Flink CDC sql中：select from where 和 from where select 的区别在哪里？就比如查看表a，字段b等于1的数据，一种写法是：select from a where b=1 另一种写法是：from a where b=1 select ，这两种写法都...

Flink CDC创建副本表CREATE TABLE..SELECT AS ，有什么好的方式吗？

Flink CDC创建副本表CREATE TABLE..SELECT AS ，我是这种方式有影响生产数据库性能了，有什么好的方式吗？

Flink CDC中select a,b,c,d 你的这个SQL的意义是什么呢？

Flink CDC中select a,b,c,d from xxx group by a,b 你的这个SQL的意义是什么呢？

Flink CDC中select a,b,c,d 这种情况怎么搞呢？

Flink CDC中select a,b,c,d from xxx group by a,b这时候会提示c和d的is not being grouped，这种情况怎么搞呢？

Flink CDC从select开始时间那个位置的binlog开始增量读取是吧？

Flink CDC读取数据的时候在读取全量select的时候就开始记录select开始那会的binlog的位置,然后全量读完了，就从select开始时间那个位置的binlog开始增量读取是吧？

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更新时间 2024-04-16 10:51:19

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实时计算Flink版

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立即开通

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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