I am not able to fetch products for a loaded publisher.

migrations:

defmodule Catalog.Repo.Migrations.CreatePublisher do
  use Ecto.Migration

  def change do
    create table(:publishers, primary_key: false) do
      add :id, :uuid, primary_key: true, default: fragment("uuid_generate_v4()")
      add :name, :string, null: false
    end
  end
end

defmodule Catalog.Repo.Migrations.CreateVolume do
  use Ecto.Migration

  def change do
    create table(:products, primary_key: false) do
      add :id, :uuid, primary_key: true, default: fragment("uuid_generate_v4()")
      add :publisher_id, references(:publishers, type: :uuid)
      add :name, :string, null: false
    end
  end
end

models:

defmodule Catalog.Publisher do
  use Catalog.Web, :model

  @primary_key {:id, :binary_id, autogenerate: false}
  schema "publishers" do
    field :name, :string
    has_many :products, Catalog.Product
  end
end

defmodule Catalog.Product do
  use Catalog.Web, :model

  @primary_key {:id, :binary_id, autogenerate: false}
  schema "products" do
    field :name, :string
    belongs_to :publisher, Catalog.Publisher
  end
end

And loading publisher with products:

query = from _ in Catalog.Publisher, limit: 1
publisher = query |> Catalog.Repo.one |> Catalog.Repo.preload(:products)

Unfortunately there is something wrong because I am receiving error:

** (Ecto.Query.CastError) deps/ecto/lib/ecto/association.ex:399: value `"de397199-e3dc-4974-9924-4ce1fa93b1d6"` in `where` cannot be cast to type :id in query:

from v in Catalog.Product,
  where: v.publisher_id == ^"de397199-e3dc-4974-9924-4ce1fa93b1d6",
  order_by: [asc: v.publisher_id],
  select: {v.publisher_id, v}