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https://issues.apache.org/jira/browse/ARROW-6398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-6398:
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Labels: dataset pull-request-available (was: dataset)
> [C++] consolidate ScanOptions and ScanContext
> ---------------------------------------------
>
> Key: ARROW-6398
> URL: https://issues.apache.org/jira/browse/ARROW-6398
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Benjamin Kietzman
> Assignee: Benjamin Kietzman
> Priority: Minor
> Labels: dataset, pull-request-available
>
> Currently ScanOptions has two distinct responsibilities: it contains the data
> selector (and eventually projection schema) for the current scan and it
> serves as the base class for format specific scan options.
> In addition, we have ScanContext which holds the memory pool for the current
> scan.
> I think these classes should be rearranged as follows: ScanOptions will be
> removed and FileScanOptions will be the abstract base class for format
> specific scan options. ScanContext will be a concrete struct and contain the
> data selector, projection schema, a vector of FileScanOptions, and any other
> shared scan state.
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