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Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/04/21 15:08:00 UTC

[jira] [Commented] (ARROW-12496) [C++][Dataset] Ensure Scanner tests fully cover async

    [ https://issues.apache.org/jira/browse/ARROW-12496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17326608#comment-17326608 ] 

David Li commented on ARROW-12496:
----------------------------------

It turns out AsyncScanner::ScanBatches(Unordered) doesn't report errors; it just ends the iterator early.

> [C++][Dataset] Ensure Scanner tests fully cover async
> -----------------------------------------------------
>
>                 Key: ARROW-12496
>                 URL: https://issues.apache.org/jira/browse/ARROW-12496
>             Project: Apache Arrow
>          Issue Type: Improvement
>            Reporter: David Li
>            Assignee: David Li
>            Priority: Major
>              Labels: dataset, datasets
>
> Some of the tests for scanners don't fully cover the async scanner as they scan a single fragment, which isn't supported by AsyncScanner.



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