[Go] The numeric array MarshalJSON implementation always converts values to float64, missing precision #41156
Closed as not planned
Description
Describe the bug, including details regarding any error messages, version, and platform.
int64(-5474557666971701248) won't be correctly represented via MarshalJSON as the value is first converted to float64. See this gen line:
arrow/go/arrow/array/numeric.gen.go.tmpl
Line 137 in daa2efa
This is present since v12 at least.
It would be great to get this both fixed & maybe backported.
Component(s)
Go