[jira] [Updated] (ARROW-2521) [Rust] Refactor Rust API to use traits and generics

["Andy Grove (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-2521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Grove updated ARROW-2521:
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    Summary: [Rust] Refactor Rust API to use traits and generics  (was: [Rust] Review Array design before first release)

> [Rust] Refactor Rust API to use traits and generics
> ---------------------------------------------------
>
>                 Key: ARROW-2521
>                 URL: https://issues.apache.org/jira/browse/ARROW-2521
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Rust
>            Reporter: Andy Grove
>            Assignee: Andy Grove
>            Priority: Major
>             Fix For: 0.10.0
>
>
> Early on, [~kszucs] and I worked on two different designs for how to represent Arrow arrays in Rust, each with their pros and cons.
> Krisztian started out with a generics approach e.g. Array<T> which was great until we tried to implement structs, which can contain mixed types so we ended up using enum to represent arrays, which was great until I got to the list types ... I don't think I can implement nested lists with this approach.
> I am reviewing this again now that I am more familiar with Arrow and also my Rust skills have improved greatly since I started working on all of this.
> I will be prototyping in a separate repo, and will update this Jira once I have something concrete to share, but I feel it is important to address this before the first official release of the Rust version. Also, if we are going to consider a refactor like this, it is better to do it now while the codebase is tiny.
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