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[jira] [Created] (ARROW-2521) [Rust] Review Array design before first release

Andy Grove created ARROW-2521:

             Summary: [Rust] Review Array design before first release
                 Key: ARROW-2521
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Rust
            Reporter: Andy Grove
            Assignee: Andy Grove
             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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