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https://issues.apache.org/jira/browse/ARROW-8112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17058703#comment-17058703
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Antoine Pitrou commented on ARROW-8112:
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Is it reasonably possible to pass the Status code on the side, e.g. as a custom
HTTP header? Or is that impossible/too much work?
> [FlightRPC][C++] Some status codes don't round-trip through gRPC
> ----------------------------------------------------------------
>
> Key: ARROW-8112
> URL: https://issues.apache.org/jira/browse/ARROW-8112
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, FlightRPC
> Affects Versions: 0.16.0
> Reporter: David Li
> Assignee: David Li
> Priority: Major
>
> KeyError and AlreadyExists don't fully round-trip, instead becoming UNKNOWN.
> There are others, but we don't attempt to map all the Arrow status to a gRPC
> status, only the ones that closely correspond to a gRPC error.
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