[ARROW-13287] [C++] [Dataset] FileSystemDataset::Write should use an async scan

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Fix Version/s: 6.0.0
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/28965
• Assignee: Weston Pace
• Reporter: Weston Pace
• Created: 08/Jul/21 04:17
• Updated: 11/Jan/23 08:32
• Resolved: 08/Jul/21 14:58

Description

I was testing pulling a dataset from S3 and saving it to a local (possibly re partitioned) copy.  Ideally I would do this with an async scan but it fails with "This scanner does not support the legacy Scan() method" because FileSystemDataset::Write is still using Scan.

Issue Links

• duplicates: ARROW-12803 [C++] [Dataset] Write dataset with scanner does not support async scan