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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2019/06/11 19:58:00 UTC
[jira] [Resolved] (ARROW-5428) [C++] Add option to set "read
extent" in arrow::io::BufferedInputStream
[ https://issues.apache.org/jira/browse/ARROW-5428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney resolved ARROW-5428.
---------------------------------
Resolution: Fixed
Nope. I did it
> [C++] Add option to set "read extent" in arrow::io::BufferedInputStream
> -----------------------------------------------------------------------
>
> Key: ARROW-5428
> URL: https://issues.apache.org/jira/browse/ARROW-5428
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Assignee: Wes McKinney
> Priority: Major
> Fix For: 0.14.0
>
>
> I'm looking at simplifying libparquet to use common IO interfaces rather than its own custom ones
> The {{parquet::BufferedInputStream}} interface has an option to not read beyond a particular number of bytes. For example, if we were reading a 32MB block with 1MB buffering, then we will not consume more than 32MB from the raw InputStream.
> This seems like a fairly trivial addition to {{arrow::io::BufferedInputStream}} to track total read bytes and do not read beyond the configured extent. We'll have to add a method like {{set_read_extent}}
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