[GitHub] [arrow] ExpandingMan commented on issue #35797: help debugging thrift issue?

["ExpandingMan (via GitHub)" <gi...@apache.org>]

ExpandingMan commented on issue #35797:
URL: https://github.com/apache/arrow/issues/35797#issuecomment-1565085895

   Ok, so I have found that the best way to debug this issue was to work with the C++ implementation of thrift directly.
    
   It turns out that what was happening was that I was varint and zigzag encoding `Int8` values, when the thrift spec explicitly states that they are special cased.  Of course I now find myself wishing that this special case was mentioned in the spec in gigantic red letters, but I can't exactly blame the spec authors for that can I.
   
   Anyway, only commentary in regards to `pyarrow` is that it would be nice if metadata failures were not so incredibly opaque.


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