add(:user_id, references(:users, type: :uuid, on_delete: :delete_all))
add(:conversation_id, references(:conversations, on_delete: :delete_all))
add(:read, :boolean, default: false)
add(:user_id, references(:users, type: :uuid, on_delete: :delete_all))
add(:conversation_id, references(:conversations, on_delete: :delete_all))
add(:read, :boolean, default: false)