mysql left join sum dwa tabele z rollup

Oto szczegółowy scenariusz:

Z podanymi danymi:

select a.title_id,  sum(revenue), sum(cost),sum(interest) from
(select a.title_id,  sum(revenue) as revenue, sum(cost) as cost from
(select  1 title_id, 10 revenue , 5 cost UNION all
select 2,   10,  5 UNION all
select 3,   10,  5 UNION all
select 4,   10,  5 UNION all
select 1,   20,  6 UNION all
select 2,   20,  6 UNION all
select 3,   20,  6 UNION all
select 4,   20,  6) as a
GROUP BY title_id) as a

left JOIN

(select title_id, sum(interest) as interest from
(select 1 as title_id, 10 as interest UNION all
select 2,   10 UNION all
select 3,  10 UNION all
select 4,   10 UNION all
select 1,  20 UNION all
select 2,  20 UNION all
select 3, 20 UNION all
select 4,  20) as b
GROUP BY title_id ) as b
on a.title_id = b.title_id 
GROUP BY a.title_id
with ROLLUP

wynik:

1   30  11  30
2   30  11  30
3   30  11  30
4   30  11  30
    120 44  120

ostateczna struktura zapytania:

select a.title_id,  sum(revenue), sum(cost),sum(interest) from
(select a.title_id,  sum(revenue) as revenue, sum(cost) as cost from
(select * from revenue) as a
GROUP BY title_id) as a

left JOIN

(select title_id, sum(interest) as interest from
(select * from fund) as b
GROUP BY title_id ) as b
on a.title_id = b.title_id 
GROUP BY a.title_id
with ROLLUP