Elixir bindings for Arrow Database Connectivity (ADBC).

Adbc provides a standard database interface using the Apache Arrow format. See Adbc documentation for setting it up and the available drivers.

First, add :adbc as a dependency in your mix.exs:

{:adbc, "~> 0.6"}

Now, in your config/config.exs, configure the drivers you are going to use. Let's use sqlite3 as an example (see Adbc for all supported drivers):

config :adbc, :drivers, [:sqlite]

If you are using a notebook or scripting, you can also use Adbc.download_driver!/1 to dynamically download one.

Then start the database and the relevant connection processes in your supervision tree:

children = [
  {Adbc.Database,
   driver: :sqlite,
   process_options: [name: MyApp.DB]},
  {Adbc.Connection,
   database: MyApp.DB,
   process_options: [name: MyApp.Conn]}
]

Supervisor.start_link(children, strategy: :one_for_one)

In a notebook, the above would look like this:

{:ok, db} = Kino.start_child({Adbc.Database, driver: :sqlite})
{:ok, conn} = Kino.start_child({Adbc.Connection, database: db})

And now you can make queries with:

# For named connections
{:ok, _} = Adbc.Connection.query(MyApp.Conn, "SELECT 123")

# When using the conn PID directly
{:ok, _} = Adbc.Connection.query(conn, "SELECT 123")

Copyright 2023 Cocoa Xu, José Valim

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

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