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Building

You can build this project using gradle:

gradle build

Running

The build produces a shaded Jar that can be run using the hadoop command:

hadoop jar parquet-cli-0.2.0.jar org.apache.parquet.cli.Main

For a shorter command-line invocation, add an alias to your shell like this:

alias parquet="hadoop jar /path/to/parquet-cli-0.2.0.jar org.apache.parquet.cli.Main --dollar-zero parquet"

Help

The parquet tool includes help for the included commands:

parquet help

Usage: parquet [options] [command] [command options]

  Options:

    -v, --verbose, --debug
        Print extra debugging information

  Commands:

    help
        Retrieves details on the functions of other commands
    meta
        Print a Parquet file's metadata
    pages
        Print page summaries for a Parquet file
    dictionary
        Print dictionaries for a Parquet column
    check-stats
        Check Parquet files for corrupt page and column stats (PARQUET-251)
    schema
        Print the Avro schema for a file
    csv-schema
        Build a schema from a CSV data sample
    convert-csv
        Create a file from CSV data
    convert
        Create a Parquet file from a data file
    to-avro
        Create an Avro file from a data file
    cat
        Print the first N records from a file
    head
        Print the first N records from a file

  Examples:

    # print information for create
    parquet help create

  See 'parquet help <command>' for more information on a specific command.

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.