marcin-krystianc commented on issue #5770:
URL: https://github.com/apache/arrow-rs/issues/5770#issuecomment-2117300694

   > How big are these files? At 1MB per page (the recommended size) this would 
come to 5TB?!
   
   I think file size depends on the number of rows per row group. With 100 row 
groups, 50k columns and single row per row group the file has 700MB (no 
compression, default page size, no stats).  
   We use files with tens of thousands rows per row group, and the files sizes 
about 1TB.


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