Hello,

I am trying to make a query which will flatten pg_auth_members into a table 
with two columns "user" and "group" which will recurse inherited roles so that 
each login role is associated once with any inherited roles (assuming all 
associated roles are inherited).

This query does not do what I want, but I can't quite wrap my head around the 
recursion part:

WITH RECURSIVE usergroups(user_id,group_id) AS (
        SELECT am.member AS user_id,am.roleid AS group_id FROM pg_auth_members 
AS am
        UNION
        SELECT am.member AS user_id,am.roleid AS group_id FROM usergroups AS 
u,pg_auth_members AS am WHERE am.roleid=u.group_id
)
SELECT r.user_id,r.group_id FROM usergroups AS r;

For a role inheritance tree of "bob (1)"->"manager(2)"->"employee(3)", I would 
like to see:

user | group
1 | 2
1 | 3

Thanks for any assistance,
M



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