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Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/11/03 14:52:00 UTC

[jira] [Commented] (ARROW-14577) [C++] Enable fine grained IO for async IPC reader

    [ https://issues.apache.org/jira/browse/ARROW-14577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17438115#comment-17438115 ] 

David Li commented on ARROW-14577:
----------------------------------

We should also combine it with the I/O coalescer.

CC [~westonpace] who I believe is looking into this already.

> [C++] Enable fine grained IO for async IPC reader 
> --------------------------------------------------
>
>                 Key: ARROW-14577
>                 URL: https://issues.apache.org/jira/browse/ARROW-14577
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 6.0.0
>            Reporter: Yue Ni
>            Priority: Major
>
> The IPC reader operates at the granularity of an entire record batch; even if you're loading only a few columns, the entire record batch is read. ARROW-12683 partially addressed this issue by enabling this capability for sync read API, however, async read API still lacks of this capability.



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