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Posted to jira@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2021/03/30 09:42:00 UTC

[jira] [Resolved] (ARROW-12056) [C++] Create sequencing AsyncGenerator

     [ https://issues.apache.org/jira/browse/ARROW-12056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou resolved ARROW-12056.
------------------------------------
    Fix Version/s: 4.0.0
       Resolution: Fixed

Issue resolved by pull request 9779
[https://github.com/apache/arrow/pull/9779]

> [C++] Create sequencing AsyncGenerator
> --------------------------------------
>
>                 Key: ARROW-12056
>                 URL: https://issues.apache.org/jira/browse/ARROW-12056
>             Project: Apache Arrow
>          Issue Type: Sub-task
>          Components: C++
>            Reporter: Weston Pace
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>          Time Spent: 3h 50m
>  Remaining Estimate: 0h
>
> ARROW-7001 needs a sequencing operator to reorder fragments & scan tasks that arrive out of order.  This AsyncGenerator would poll source and buffer results until the "next" result arrives.  For example, given a source of 6,2,1,3,4,5 the operator would return 1,2,3,4,5,6 and would need to buffer 2 items (6 & 2 at the beginning).
> The Next(T t) will be configurable via function.



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