[GENERAL] Are multiple array_aggs going to be in the same order?

[Guyren Howe]

If I do a SELECT with a GROUP_BY and multiple ARRAY_AGGs, will the ARRAY_AGGs 
be guaranteed to have entries in the same (ie corresponding) order?

eg

SELECT
        u.name,
        ARRAY_AGG(o.order_date) AS order_dates,
        ARRAY_AGG(o.order_total) AS order_totals
FROM
        user u JOIN
        orders o USING (user_id)
GROUP BY
        u.user_id