alamb opened a new issue, #7660:
URL: https://github.com/apache/arrow-rs/issues/7660
It's hard to pass around the content of tuple/struct enum variants with
multiple members -- you have to unpack them and pass scalar values around,
which is bulky and error-prone (**). Should we consider creating a struct or
family of structs for representing scalar decimal values?
<details>
<summary>(**)</summary>
It would be lovely if `Variant::Decimal4` were an actual type in rust. It
actually _is_ a type under the hood, but the language doesn't expose it as
such, because the enum discriminant has to be stored somewhere and rust usually
embeds it in the variant itself to save space. See
https://rust-lang.github.io/rfcs/2195-really-tagged-unions.html#guide-level-explanation
for gory details.
</details>
_Originally posted by @scovich in
https://github.com/apache/arrow-rs/pull/7644#discussion_r2142968689_
I believe the high level proposal is somethin
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