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  1. Apache Arrow
  2. ARROW-5492

[R] Add "col_select" argument to read_* functions to read subset of columns

Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 0.14.0
    • R

    Description

      read_feather, read_parquet, read_csv_arrow (and read_json, when it exists) should take a `col_select` argument, following the model of vroom (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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            romainfrancois Romain Francois
            wesm Wes McKinney
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