akkoma/priv/repo/migrations/20170415141210_add_unique_index_to_email_and_nickname.exs

defmodule Pleroma.Repo.Migrations.AddUniqueIndexToEmailAndNickname do
  use Ecto.Migration

  def change do
    create_if_not_exists(unique_index(:users, [:email]))
    create_if_not_exists(unique_index(:users, [:nickname]))
  end
end