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https://issues.apache.org/jira/browse/ARROW-8205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17087699#comment-17087699
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Wes McKinney commented on ARROW-8205:
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Correct, it should probably be the responsibility of application logic (e.g. in
DataFusion or other analytics applications) to assert the uniqueness of field
names
> [Rust] Arrow 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
> Affects Versions: 0.16.0
> Reporter: Andy Grove
> Priority: Major
> Fix For: 1.0.0
>
>
> 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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