[jira] [Created] (ARROW-10219) [C++] csv::TableReader column names, Read() arguments

["Neal Richardson (Jira)" <ji...@apache.org>]

Neal Richardson created ARROW-10219:
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             Summary: [C++] csv::TableReader column names, Read() arguments
                 Key: ARROW-10219
                 URL: https://issues.apache.org/jira/browse/ARROW-10219
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Neal Richardson
             Fix For: 3.0.0


Some feature requests:

* csv::TableReader {{column_names}} method, and/or {{schema}} method. This will (in most cases) require IO to get these from the file, but that's fine. There are use cases (we've seen in R) where it would help to be able to get the names from the file (e.g. when you specify column types, it's a map of column name to type, so you can't currently specify types without also specifying names)
* Add Read(std::vector<int>) like how feather (and parquet?) have so that you don't have to parse and allocate columns you don't want.

cc [~apitrou] [~romainfrancois]



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