func existingFinal(tx *gorp.Transaction, id string) bool {
	var count int64
	_ = tx.SelectOne(&count, "SELECT count(*) FROM authz WHERE id = :id", map[string]interface{}{"id": id})
	return count > 0
}
func existingRegistration(tx *gorp.Transaction, id int64) bool {
	var count int64
	_ = tx.SelectOne(&count, "SELECT count(*) FROM registrations WHERE id = :id", map[string]interface{}{"id": id})
	return count > 0
}
func existingPending(tx *gorp.Transaction, id string) bool {
	var count int64
	_ = tx.SelectOne(&count, "SELECT count(*) FROM pendingAuthorizations WHERE id = :id", map[string]interface{}{"id": id})
	return count > 0
}