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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2021/01/05 19:45:00 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: 3.0.0)
4.0.0
> [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: 4.0.0
>
>
> 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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