sd4324530 commented on PR #4473:
URL: https://github.com/apache/flink-cdc/pull/4473#issuecomment-5750020305

   > Hi, @sd4324530.
   > 
   > I suggest adding a section to the route documentation that explains the 
behavior in Flink CDC 3.6.0, the corrected behavior introduced by this change, 
and the potential compatibility impact on existing jobs.
   > 
   > It would also be helpful to add a test that genuinely verifies 
multi-character capture groups. For example, use a sink pattern such as 
`new_db_6.table_$1_suffix`, where the old implementation produces 
`table_1_suffix3` for `table_13`, while the corrected implementation produces 
`table_13_suffix`.
   
   @lvyanquan Thank you very much for your review and suggestions. I have added 
compatibility information to the document, and add a test that genuinely 
verifies multi-character capture groups. Please take a look when you have time.


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