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https://issues.apache.org/jira/browse/ARROW-8028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17084229#comment-17084229
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Wes McKinney commented on ARROW-8028:
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Here's an example from the wild
https://github.com/grafana/grafana-plugin-sdk-go/issues/137#issue-600431508
> [Go] Allow duplicate field names in schemas and nested types
> ------------------------------------------------------------
>
> Key: ARROW-8028
> URL: https://issues.apache.org/jira/browse/ARROW-8028
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Go
> Affects Versions: 0.16.0
> Reporter: Ben Kietzman
> Assignee: Sebastien Binet
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.17.0
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> Go's implementation of Schema panics if field names are duplicated within a
> schema. This is not guaranteed by the standard, so Go will not be able to
> handle valid record batches produced by other implementations which contain
> these.
> https://github.com/apache/arrow/blob/084549a/go/arrow/schema.go#L117
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