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https://issues.apache.org/jira/browse/FLINK-35474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17849936#comment-17849936
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stevedengzhi commented on FLINK-35474:
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First Question: Does the information in the checkpoint record the old table 
schema along with the binlog position?:)

> During the process of catching up after a restart, Flink CDC uses the latest 
> table information to parse old Mysql binlogs.
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-35474
>                 URL: https://issues.apache.org/jira/browse/FLINK-35474
>             Project: Flink
>          Issue Type: Bug
>          Components: Flink CDC
>    Affects Versions: 1.17.2
>            Reporter: stevedengzhi
>            Priority: Major
>         Attachments: image-2024-05-28-16-13-58-566.png
>
>
> !image-2024-05-28-16-13-58-566.png!
> IN FLINK CDC 2.3.0 VERSION:
> This DDL issue can prevent recovery from checkpoints, leading to infinite 
> restarts.
> How to reproduce this issue?(翻译by chatGPT,English not well )
> Step 1: Turn off Flink CDC.
> Step 2: Perform DDL operations on multiple tables, including deleting 
> columns, reducing columns, and adding columns.
> Step 3: Restore Flink CDC from the last checkpoint before it was turned off.
>  
>  
>  
>  



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