alamb commented on issue #5770:
URL: https://github.com/apache/arrow-rs/issues/5770#issuecomment-2113697968

   One idea would be to create a dataset with `1000` columns, `2000` columns , 
`5000` columns and `10000` columns with say 10 row groups of 1M rows
   
   Measure the size of the metadata with
   1.  default writer settings
   2. "minimal" settings (no statistics, disable everything possible)
   3. 


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