CSV to Arrow

This repo is archived and the code moved to Arrow CLI Tools.

Convert CSV files to Apache Arrow. You may also be interested in json2arrow, csv2parquet, or json2parquet.

Installation

Download prebuilt binaries

You can get the latest releases from https://github.com/domoritz/csv2arrow/releases/.

With Cargo

cargo install csv2arrow

Usage

Usage: csv2arrow [OPTIONS] <CSV> [ARROW]

Arguments:
  <CSV>    Input CSV file
  [ARROW]  Output file, stdout if not present

Options:
  -s, --schema-file <SCHEMA_FILE>
          File with Arrow schema in JSON format
  -m, --max-read-records <MAX_READ_RECORDS>
          The number of records to infer the schema from. All rows if not present. Setting max-read-records to zero will stop schema inference and all columns will be string typed
      --header <HEADER>
          Set whether the CSV file has headers [possible values: true, false]
  -d, --delimiter <DELIMITER>
          Set the CSV file's column delimiter as a byte character [default: ,]
  -p, --print-schema
          Print the schema to stderr
  -n, --dry
          Only print the schema
  -h, --help
          Print help information
  -V, --version
          Print version information

The --schema-file option uses the same file format as --dry and --print-schema.