Mrart commented on PR #3950:
URL: https://github.com/apache/flink-cdc/pull/3950#issuecomment-2826466768

   > > specific-offsets: Create a replication slot starting from a 
user-specified LSN. pg_waldump can get specific lsn
   > 
   > Hi @Mrart, thank you for sharing the idea. However I think from postgresql 
[doc](https://www.postgresql.org/docs/current/protocol-replication.html#PROTOCOL-REPLICATION-CREATE-REPLICATION-SLOT)
 , it doesn't support creating replication slot from a specific LSN. If you're 
aware of any syntax from postgresql to support this, please let me know.
   
    if the replication slot exist, we can start flink cdc job from a specific 
LSN use exist slotname?


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