Apache Parquet is a columnar storage format.

RedAmber is a data frame library inspired by Rover-df and powered by Red Arrow.

Groonga-command is a library that represents [Groonga](http://groonga.org/)'s command. You can write a program that handle Groonga's command by using groonga-command.

Red Arrow DuckDB is a library that provides Apache Arrow support to ruby-duckdb.

Red Arrow PyCall adds `#to_python` method to most Ruby objects for Apache Arrow such as `Arrow::Array`. Red Arrow PyCall adds `to_ruby` method to most Python objects for Apache Arrow such as `pyarrow.lib.Int8Array`.

Apache Arrow DataFusion is an extensible query execution framework that uses Apache Arrow as its in-memory format.

Apache Arrow formatter plugin for fluentd.

Extends the fluent-plugin-s3 compression algorithm to enable red-arrow compression.

ADBC (Apache Arrow Database Connectivity) is an API standard for database access libraries that uses Apache Arrow for data.

A Data Viewer for RedAmber. Opens a window and displays a spreadsheet-like table.

A library that provides conversion method between Apache Arrow and ActiveRecord

Apache Arrow CUDA is a common in-memory columnar data store on CUDA. It's useful to share and process large data.

Apache Arrow Dataset is one of Apache Arrow components to read and write semantic datasets stored in different locations and formats.

Apache Arrow Flight is a general-purpose client-server framework to simplify high performance transport of large datasets over network interfaces.

Red Arrow GDK Pixbuf adds `Arrow::Tensor#to_pixbuf` and `GdkPixbuf::Pixbuf#to_arrow`. `Arrow::Tensor#to_pixbuf` returns a `GdkPixbuf::Pixbuf`. `GdkPixbuf::Pixbuf#to_arrow` returns a `Arrow::Tensor`.

Apache Arrow GPU is a common in-memory columnar data store on GPU. It's useful to share and process large data.

Red Arrow GSL adds `Arrow::*Array#to_gsl`/`Arrow::Tensor#to_gsl` for Apache Arrow to GSL conversion. Red Arrow GSL adds `GSL::Vector#to_arrow`/`GSL::Vector::Int#to_arrow`/`GSL::Matrix::*#to_arrow` for GSL to Apache Arrow conversion.

Red Arrow NMatrix adds `Arrow::Tensor#to_nmatrix` for Apache Arrow to NMatrix conversion. Red Arrow NMatrix adds `NMatrix#to_arrow` for NMatrix to Apache Arrow conversion.

Red Arrow Numo::NArray adds `Arrow::Tensor#to_narray` and `#to_arrow`/`#to_arrow_array` to `Numo::NArray`'s numerical subclasses such as `Numo::Int8`. `Arrow::Tensor#to_narray` returns a `Numo::NArray`'s numerical subclass such as `Numo::Int8`. `#to_arrow` returns a `Arrow::Tensor`. `#to_arrow_array` returns an `Arrow::Array` instance if the original object is an 1 dimensional array.

Red Datasets Arrow adds `#to_arrow` method to each dataset in Red Datasets. You can get dataset as `Arrow::Table` object. `Arrow::Table` is provided by [Red Arrow](http://github.com/red-data-tools/red-arrow).