how to define the return type for order_by?

[videni]

I read composing-application and schema-in-depth several times, still no idea to define the return type for order by.

pub fn by_customer<'a>(customer_id: Uuid) -> diesel::helper_types::Order<?, ?>
    {
        table
            .select(subscription_link_access::all_columns)
            .filter(columns::customer_id.eq(customer_id))
            .order_by(columns::subscriped_at.desc())
    }

pub type BoxedQuery<'a> = subscription_link_access::BoxedQuery<'a, Pg>;

I have tried the BoxedQuery, no lucky, the BoxedQuery seems only suitable for select statement, not order by. please help.

[weiznich]

As this question is missing essential information like a minimal reproducible example I can only point to the documentation and state that your function will return the same type as QueryDsl::order_by.