Re: Combining two queries

Robert DiFalco wrote
> For 2 arbitrary ids, I need a query to get two pieced of data:
>    * Are the two users friends?

This seems easy...ROW(u_id, f_id) = ROW(n1, n2)


>    * How many friends do the two users have in common.

SELECT f_id FROM [...] WHERE u_id = n1
INTERSECT
SELECT f_id FROM [...] WHERE u_id = n2

Put those into WITH/CTE and use the main query to combine them in whatever
way seems appropriate.

David J.




--
View this message in context: http://postgresql.nabble.com/Combining-two-queries-tp5831378p5831391.html
Sent from the PostgreSQL - general mailing list archive at Nabble.com.