alamb commented on PR #6181:
URL: https://github.com/apache/arrow-rs/pull/6181#issuecomment-2266111621

   > However, it made me wonder if the following behavior is correct:
   > I made 3 batches as
   
   It is somewhat tricky -- What really matters is how the rows are actually 
written into row groups as the min and maxes are computed per row group
   
   So if you fed three batches in to the writer but only created a single row 
group, I would expect only a single row in the min and max values that is the 
min/max value across al the rows in all the batches


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