Re: [PR] [FLINK-38244][hotfix] Fix the full snapshot phase, the field case is adjusted based on isTableIdCaseInsensitive [flink-cdc]

["yunhaoww (via GitHub)" <gi...@apache.org>]

yunhaoww commented on PR #4284:
URL: https://github.com/apache/flink-cdc/pull/4284#issuecomment-4386281180

   @sd4324530 
   
   你好, 这次的 PR 引入了新的 BUG
   
   --------
   
     Flink CDC 3.6.0 在跑 MySQL → 下游的 pipeline 任务时，如果同时满足:                  
                                                                                       
     - 源 MySQL 的 lower_case_table_names != 0（即 1 或 2，macOS / Windows 默认；部分云上
      RDS 也这么配）                                                                   
     - 源表 DDL 里有非全小写的列名（大写 / 驼峰均可）                                    
     - YAML pipeline 配了 transform 块，且 projection / primary-keys 按 DDL              
     原大小写引用了这些列                                                                
                                                                                         
     任务在 INITIAL snapshot 阶段就崩，0 行入库，错误堆栈是 Column 'XXX' not found in any
      table，且故障 CreateTableEvent 的 schema 是空列 columns={} 但 primaryKeys        
     是有值的。任务进入崩溃循环，自动重启也不会自愈。


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