David Li created ARROW-12231:
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Summary: [C++][Dataset] Separate datasets backed by readers from
InMemoryDataset
Key: ARROW-12231
URL: https://issues.apache.org/jira/browse/ARROW-12231
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Affects Versions: 4.0.0
Reporter: Weston Pace
Assignee: David Li
>From ARROW-10882/[https://github.com/apache/arrow/pull/9802]
* Backing an InMemoryDataset with a reader is misleading. Let's split that out
into a separate class.
* Dataset scanning can then use an I/O thread for the new class.
* Longer-term, we should interface with Python's async.
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