aokolnychyi edited a comment on issue #2068:
URL: https://github.com/apache/iceberg/issues/2068#issuecomment-758850624


   > I'm also not sure what overwrite would do. Dynamic partition overwrite?
   
   Yeah, the use case for this may be as follows: the user imports a partition 
and then more files are added to that partition through a non-Iceberg path. So 
he/she may want to reimport the partition overriding the current set of files 
in that partition. 
   
   It may be used for snapshot tables or tables to which files are promoted 
after they are written. For example, we have a customer who writes Parquet 
files using Java and at some point registers them as a partition.


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