[GitHub] [iceberg] ajantha-bhat commented on pull request #7105: Spec: Add partition stats spec

["ajantha-bhat (via GitHub)" <gi...@apache.org>]

ajantha-bhat commented on PR #7105:
URL: https://github.com/apache/iceberg/pull/7105#issuecomment-1540274093

   Hi @aokolnychyi and @rdblue, 
   
   I just created a single parquet file with a million sorted unique timestamp (partition value) and the same schema as expected partition stats. The file size turned out to be 12.6MB, Unsorted random file was around 30MB.
   
   https://gist.github.com/ajantha-bhat/3401f2a29ddfa6b2b42f9168461ce98b 
   
   I agree that rewriting the whole file is expensive once the data grows. But creating multiple small files for incremental updates will not sort whole data and may slow the look-up of partition values during query. 


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