nssalian commented on PR #1478:
URL: https://github.com/apache/iceberg-go/pull/1478#issuecomment-5008774128

   Both the review items are addressed along with a few additional changes:
   - Incomplete row-group stats: a typed leaf with non-null values but no 
usable min/max is now invalidated and its bound dropped, only a provably 
all-null row group is skipped. 
   - Ancestor residuals: each leaf carries its full ancestor residual value 
chain and drops its bound if any ancestor/self 
   residual holds non-null data. 
   - I added new regression tests for both
   - I also fixed a mislabeled comment in DataFileFromMetadata and added the 
missing bound-correctness test on that recompute path. 
   - Rebased/merged onto latest main.


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