[GitHub] [arrow] zeroshade commented on issue #35310: Incorrect value when creating decimal128 from string (golang)

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

zeroshade commented on issue #35310:
URL: https://github.com/apache/arrow/issues/35310#issuecomment-1520806180

   Well this is just interesting. If I use precision <= 34 with the same value, then I get the expected `211233`. But if you use `35 <= prec <= 38` then you end up with this rounding issue. I'm not quite sure why it's happening yet, though it's likely something to do with the `SetPrec` call in the `FromString` function along with attempting to represent this value as a float. I'll see if i can try to figure out a way to fix this without breaking other cases.


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