RussellSpitzer edited a comment on issue #1635:
URL: https://github.com/apache/iceberg/issues/1635#issuecomment-712918616


   Ok just fixing the nonnull check is not sufficient because the min and max 
values cannot be serialized correctly either. I wrote a quick test to just 
manual check for nonnull s and when you do that it crashes attempting to check 
the min and max bounds.
   
   This makes me think we need to make a backup isEmpty check. This would see 
whether nullcount is 0 and min/max are undefined. In this case we should also 
treat the stats as empty


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