Combining three very similar queries? (Postgres) - postgresql

Question

So I have three queries. I'm trying to combine them all into one query. Here they are with their outputs:
Query 1:
SELECT distinct on (name) name, count(distinct board_id)
FROM tablea
INNER JOIN table_b on tablea.id = table_b.id
GROUP BY name
ORDER BY name ASC
Output:
A | 15
B | 26
C | 24
D | 11
E | 31
F | 32
G | 16
Query 2:
SELECT distinct on (name) name, count(board_id) as total
FROM tablea
INNER JOIN table_b on tablea.id = table_b.id
GROUP BY 1, board_id
ORDER BY name, total DESC
Output:
A | 435
B | 246
C | 611
D | 121
E | 436
F | 723
G | 293
Finally, the last query:
SELECT distinct on (name) name, count(board_id) as total
FROM tablea
INNER JOIN table_b on tablea.id = table_b.id
GROUP BY 1
ORDER BY name, total DESC
Output:
A | 14667
B | 65123
C | 87426
D | 55198
E | 80612
F | 31485
G | 43392
Is it possible to format it to be like this:
A | 15 | 435 | 14667
B | 26 | 246 | 65123
C | 24 | 611 | 87426
D | 11 | 121 | 55198
E | 31 | 436 | 80612
F | 32 | 723 | 31485
G | 16 | 293 | 43392
EDIT:
With #Clodoaldo Neto 's help, I combined the first and the third queries with this:
SELECT name, count(distinct board_id), count(board_id) as total
FROM tablea
INNER JOIN table_b on tablea.id = table_b.id
GROUP BY 1
ORDER BY description ASC
The only thing preventing me from combining the second query with this new one is the GROUP BY clause needing board_id to be in it. Any thoughts from here?

Answer 1

This is hard to get right without test data. But here is my try:
with s as (
select name, grouping(name, board_id) as grp,
count(distinct board_id) as dist_total,
count(*) as name_total,
count(*) as name_board_total
from
tablea
inner join
table_b on tablea.id = table_b.id
group by grouping sets ((name), (name, board_id))
)
select name, dist_total, name_total, name_board_total
from
(
select name, dist_total, name_total
from s
where grp = 1
) r
inner join
(
select name, max(name_board_total) as name_board_total
from s
where grp = 0
group by name
) q using (name)
order by name
https://www.postgresql.org/docs/current/static/queries-table-expressions.html#QUERIES-GROUPING-SETS