[jira] [Resolved] (ARROW-5492) [R] Add "col_select" argument to read_* functions to read subset of columns

["Antoine Pitrou (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-5492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou resolved ARROW-5492.
-----------------------------------
    Resolution: Fixed

Issue resolved by pull request 4627
[https://github.com/apache/arrow/pull/4627]

> [R] Add "col_select" argument to read_* functions to read subset of columns 
> ----------------------------------------------------------------------------
>
>                 Key: ARROW-5492
>                 URL: https://issues.apache.org/jira/browse/ARROW-5492
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: R
>            Reporter: Wes McKinney
>            Assignee: Romain François
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.14.0
>
>          Time Spent: 3.5h
>  Remaining Estimate: 0h
>
> read_feather, read_parquet, read_csv_arrow (and read_json, when it exists) should take a `col_select` argument, following the model of [vroom|http://vroom.r-lib.org/articles/vroom.html#column-selection] (readr and base R file readers also support this feature, just much more awkwardly).
> Currently, read_feather has a "columns" argument and none of the other readers expose it. Parquet can certainly support it; cf. {{pyarrow.parquet.read_table.}}
>  



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