[jira] [Commented] (ARROW-8205) [Rust] [DataFusion] DataFusion should enforce unique field names in a schema

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

    [ https://issues.apache.org/jira/browse/ARROW-8205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17206836#comment-17206836 ] 

Andy Grove commented on ARROW-8205:
-----------------------------------

Yes, there is still time if we want to do this. I think the goal is to cut RC at the end of this coming week. This might be a nice one to get in.

> [Rust] [DataFusion] DataFusion should enforce unique field names in a schema
> ----------------------------------------------------------------------------
>
>                 Key: ARROW-8205
>                 URL: https://issues.apache.org/jira/browse/ARROW-8205
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Rust, Rust - DataFusion
>    Affects Versions: 0.16.0
>            Reporter: Andy Grove
>            Priority: Major
>             Fix For: 2.0.0
>
>
> There does not seem to be any validation to avoid schemas being created with duplicate field names. We should add this along with unit tests.
> This will require changing the signature of the constructors to try_new with a Result return type.



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