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https://issues.apache.org/jira/browse/ARROW-17318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved ARROW-17318.
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Fix Version/s: 10.0.0
Resolution: Fixed
Issue resolved by pull request 13804
[https://github.com/apache/arrow/pull/13804]
> [C++][Dataset] Support async streaming interface for getting fragments in
> Dataset
> ---------------------------------------------------------------------------------
>
> Key: ARROW-17318
> URL: https://issues.apache.org/jira/browse/ARROW-17318
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: C++
> Reporter: Pavel Solodovnikov
> Assignee: Pavel Solodovnikov
> Priority: Major
> Labels: c++, dataset, pull-request-available
> Fix For: 10.0.0
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> Add `GetFragmentsAsync()` and `GetFragmentsAsyncImpl()` functions to the
> generic `Dataset` interface, which allows to produce fragments in a streamed
> fashion.
> This is one of the prerequisites for making `FileSystemDataset` to support
> lazy fragment processing, which, in turn, can be used to start scan
> operations without waiting for the entire dataset to be discovered.
> To aid the transition process of moving to async implementation in
> `Dataset`/`AsyncScanner` code, a default implementation for
> `GetFragmentsAsyncImpl()` should be provided (yielding a VectorGenerator over
> the fragments vector, which is stored by every implementation of Dataset
> interface at the moment).
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