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https://issues.apache.org/jira/browse/ARROW-501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16594020#comment-16594020
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Wes McKinney commented on ARROW-501:
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Makes sense. In the case of CSV reading, we would want to arrange so that the
abstraction does not incur much or any overhead when being used locally with
memory-mapped files (so the OS manages IO from the filesystem even if we are
dealing semantically with {{arrow::Buffer}} objects in the C++ code)
> [C++] Implement concurrent / buffering InputStream for streaming data use
> cases
> -------------------------------------------------------------------------------
>
> Key: ARROW-501
> URL: https://issues.apache.org/jira/browse/ARROW-501
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Labels: csv
> Fix For: 0.13.0
>
>
> Related to ARROW-500, when processing an input data stream, we may wish to
> continue buffering input (up to an maximum buffer size) in between
> synchronous Read calls
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