[GitHub] [iceberg] pvary commented on issue #5339: Adding the same file twice for the same table

[GitBox <gi...@apache.org>]

pvary commented on issue #5339:
URL: https://github.com/apache/iceberg/issues/5339#issuecomment-1193063396

   > Yea I think there was an old similar discussion here: #3064. I think we can do a per check of all files added in same transaction, but anything beyond that involves an expensive spark call to check for duplicates in the table itself?
   
   Thanks @szehon-ho, I was not aware of the old thread. It seems like a reasonable comprise to accept duplicated files, if we do not parse the whole table metadata anyway.
   What is the level of the data parsed when we have a `Table` object at hand? Which metadata files do we read when we commit something? Does anyone have a quick answer for this, or shall I check?
   
   Thanks everyone for the answers!
    


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