zanmato1984 commented on PR #39685:
URL: https://github.com/apache/arrow/pull/39685#issuecomment-2044425913

   > 64-bit here should be fine. This is the defect I was thinking of 
originally: #34474
   > 
   > As long as we are only changing `uint32_t` to `int64_t` and all the tests 
pass then I don't think we need to worry about breaking large memory support.
   
   Hi @westonpace , sorry about coming back to this late. In the quoted 
comment, are you suggesting keeping the row-offsets/byte-offsets unsigned and 
only changing the number of rows/bytes to signed 64-bit? Or changing both the 
offsets and numbers to signed 64-bit? Please help to confirm and I'll keep 
working on this. Thank you.


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