pvary commented on PR #15337:
URL: https://github.com/apache/iceberg/pull/15337#issuecomment-3911030888

   If there are multiple updates for the same key then the CDC stream should 
contain multiple DELETE + INSERT pairs.
   It should create a single equality delete, and every consecutive delete 
should be converted to a position delete instead which removes the newly 
inserted row of the previous update.
   The decision happens here:
   
https://github.com/apache/iceberg/blob/ebaafdeb35ed892e95f1d9b4666a18d393c95876/core/src/main/java/org/apache/iceberg/io/BaseTaskWriter.java#L234-L241


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