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https://issues.apache.org/jira/browse/ARROW-6764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou updated ARROW-6764:
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    Description: 
This could replace the current ad-hoc ReadaheadSpooler, at least for JSON.
CSV currently uses non-zero padding, but it could switch to the same strategy 
as JSON (i.e. keep track of partial / completion blocks).


  was:
The current implementation is very ad-hoc and allows unused padding arguments.

We could refactor it using the Iterator facility.


> [C++] Add readahead iterator
> ----------------------------
>
>                 Key: ARROW-6764
>                 URL: https://issues.apache.org/jira/browse/ARROW-6764
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Major
>
> This could replace the current ad-hoc ReadaheadSpooler, at least for JSON.
> CSV currently uses non-zero padding, but it could switch to the same strategy 
> as JSON (i.e. keep track of partial / completion blocks).



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