[ARROW-9140] [R] Zero-copy Arrow to R where possible

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: R
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25249
• Assignee: Romain Francois
• Reporter: Neal Richardson
• Created: 15/Jun/20 18:33
• Updated: 11/Jan/23 08:04
• Resolved: 23/Jun/21 15:12

Description

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 the data.

cc romainfrancois fsaintjacques

Issue Links

• is related to: ARROW-7798 [R] Refactor R <-> Array conversion
• links to: GitHub Pull Request #10445