Defines an embedded schema for the Cassandra table with the given field definitions.

In order to create a schema, you must define a @primary_key before the schema definition. Unlike Ecto.Schema, Cassandrax.Schema won't automatically generate a primary key which is named id. @primary_key configures the schema primary key and it expects a list of key(s). You can set a single primary key which is the partition key in Cassandra or a list of keys where the first key is the partition key and the rest are the clustering keys which are responsible for sorting data within the partition.

You can use Ecto's schema to leverage field definitions and metadata.

Example

  defmodule User do
    use Cassandrax.Schema

    @primary_key [:id]

    table "users" do
      field :id, :integer
      field :user_name, :string
    end
  end