Re: Help me with this multi-table query

In response to Nilesh Govindarajan :
> Hi,
> 
> I want to find out the userid, nodecount and comment count of the userid.
> 
> I'm going wrong somewhere.
> 
> Check my SQL Code-

Check my example:

test=*# select * from u;id
---- 1 2 3
(3 rows)

test=*# select * from n;uid
-----  1  1  1  2  2  3
(6 rows)

test=*# select * from c;uid
-----  1  2  2  3  3  3
(6 rows)

test=*# select foo.id, foo.n_count, count(c) from (select u.id, count(n)
as n_count from u right join n on (n.uid=u.id) group by 1) foo left join
c on foo.id=c.uid group by id, n_count;id | n_count | count
----+---------+------- 1 |       3 |     1 2 |       2 |     2 3 |       1 |     3
(3 rows)


Andreas
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Andreas Kretschmer
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