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https://issues.apache.org/jira/browse/ARROW-9069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neal Richardson closed ARROW-9069.
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Resolution: Duplicate
> [C++] MakeArrayFromScalar can't handle struct
> ---------------------------------------------
>
> Key: ARROW-9069
> URL: https://issues.apache.org/jira/browse/ARROW-9069
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Neal Richardson
> Priority: Major
>
> The R bindings translate data to/from Scalars by using the Array methods
> already implemented: to go from R object to a Scalar, it creates a length-1
> Array and then slices out the 0th element with GetScalar(); to go from Scalar
> to R object, it calls MakeArrayFromScalar and then the as.vector method on
> that Array (in R, there is no scalar type anyway, only length-1 vectors).
> This generally works fine but if I get a Struct scalar (as the minmax compute
> function returns), I can't do anything with it because MakeArrayFromScalar
> doesn't work with structs.
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