chenjunjiedada edited a comment on issue #359: Spec: Add file and position 
delete files
URL: 
https://github.com/apache/incubator-iceberg/issues/359#issuecomment-607330184
 
 
   Sorry for the confusion,  I just open 
https://github.com/apache/incubator-iceberg/pull/887. 
   
   No matter what column it sort with, we all need a processing engine to 
handle it, don't we? I 'm thinking of the case of the Spark `SupportsDelete` 
interface, with the given filter we have to call the spark to build the 
dataframe for deletion file. But Iceberg may have APIs to support deleting rows 
in file scope or partition scope in the future. That may not need the 
processing engine. 

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