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https://issues.apache.org/jira/browse/ARROW-7798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques reassigned ARROW-7798:
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Assignee: (was: Francois Saint-Jacques)
> [R] Refactor R <-> Array conversion
> -----------------------------------
>
> Key: ARROW-7798
> URL: https://issues.apache.org/jira/browse/ARROW-7798
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Reporter: Francois Saint-Jacques
> Priority: Major
> Fix For: 1.0.0
>
>
> There's a bit of technical debt accumulated in array_to_vector and
> vector_to_array:
> * Mix of conversion *and* casting, ideally we'd move casting out of there (at
> the cost of more memory copy). The rationale is that the conversion logic
> will differ from the CastKernels, e.g. when to raise errors, benefits from
> complex conversions like timezone... The current implementation is fast, e.g.
> it fuses the conversion and casting in a single loop at the cost of code
> clarity and divergence.
> * There should be 2 paths, zero-copy, non zero-copy. The non-zero copy should
> use the newly introduced VectorToArrayConverter which will work with complex
> nested types.
> * The in array_to vector, Converter should work primarily with Array and not
> ArrayVector
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