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https://issues.apache.org/jira/browse/ARROW-8763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17106256#comment-17106256
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Francois Saint-Jacques commented on ARROW-8763:
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[~lidavidm]
> [C++] Create RandomAccessFile::WillNeed-like API
> ------------------------------------------------
>
> Key: ARROW-8763
> URL: https://issues.apache.org/jira/browse/ARROW-8763
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Major
>
> We need to inform RandomAccessFile that we will need a given range or number
> of ranges.
> Also call that method from MemoryMappedFile::Read and friends.
> Also perhaps write specialized ReadAsync implementations?
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