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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2020/09/25 23:15:00 UTC

[jira] [Updated] (ARROW-9140) [R] Zero-copy Arrow to R where possible

     [ https://issues.apache.org/jira/browse/ARROW-9140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neal Richardson updated ARROW-9140:
-----------------------------------
    Fix Version/s:     (was: 2.0.0)
                   3.0.0

> [R] Zero-copy Arrow to R where possible
> ---------------------------------------
>
>                 Key: ARROW-9140
>                 URL: https://issues.apache.org/jira/browse/ARROW-9140
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: R
>            Reporter: Neal Richardson
>            Assignee: Romain Francois
>            Priority: Major
>             Fix For: 3.0.0
>
>
> In a few cases, such as {{int32}} and {{float64}}, where there are no nulls (or nulls allowed, if ARROW-8348/ARROW-3263 happen), we should be able to ingest data from Arrow to R with zero copy. But from my reading of the source, we always allocate memory, and even in the simple cases, we always [transform|https://github.com/apache/arrow/blob/efb707a5438380dcef78418668b57c3f60592a23/r/src/array_to_vector.cpp#L130] the data.
> cc [~romainfrancois] [~fsaintjacques]



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