[jira] [Resolved] (ARROW-9749) [C++][Dataset] Extract format-specific scan options from FileFormat

["Ben Kietzman (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-9749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ben Kietzman resolved ARROW-9749.
---------------------------------
    Resolution: Fixed

Issue resolved by pull request 9686
[https://github.com/apache/arrow/pull/9686]

> [C++][Dataset] Extract format-specific scan options from FileFormat
> -------------------------------------------------------------------
>
>                 Key: ARROW-9749
>                 URL: https://issues.apache.org/jira/browse/ARROW-9749
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 1.0.0
>            Reporter: Ben Kietzman
>            Assignee: David Li
>            Priority: Major
>              Labels: dataset, pull-request-available
>             Fix For: 4.0.0
>
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> Currently format specific scan options are embedded as members of the corresponding subclass of FileFormat. Extracting these to an options struct would provide better separation of concerns; currently the only way to scan a parquet formatted dataset with different options is to reconstruct it in a differently optioned format from its component files.
> CsvFileFormat could retain ParseOptions as a member, since (for example) tab-separated vs comma-separated values can justifiably be considered different formats.



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