erezrokah opened a new pull request, #35950:
URL: https://github.com/apache/arrow/pull/35950
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### Rationale for this change
See [issue](https://github.com/apache/arrow/issues/35948).
Based on
https://github.com/apache/arrow/blob/9fb8697dcb442f63317c7d6046393fb74842e0ae/go/arrow/array/numeric.gen.go.tmpl#L120
it seems we should only do the casting for `unit8` and `int8` types.
### What changes are included in this PR?
This PR fixes the numeric template so it only casts `int8` and `unit8` to
`float64` when JSON marshaling arrays to avoid losing data for other types.
### Are these changes tested?
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Yes
### Are there any user-facing changes?
The user facing change is that if a user was JSON marshaling arrays that has
`uint64` or `int64` values they can now get different (more accurate) values
than before
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