On Thu, 2009-01-22 at 02:33 +0300, Igor Katson wrote: > So to say, give me the list of friends (not only their ID's, but all the > needed columns!) of given individual, which are in a given group. That > seems ok without plproxy, but with using it, I can't imagine how can I > form a nice query, or a function (or a set of plpgsql + plproxy > functions) to do the job.
You need to do it in two steps - first run a query on the partition the user is in to get list of friends ids, then run a second RUN ON ALL query with WHERE f.friend.id in (list of ids from f1) AND f.group_id = $2 to gather all friend info in parallel -- ------------------------------------------ Hannu Krosing http://www.2ndQuadrant.com PostgreSQL Scalability and Availability Services, Consulting and Training -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
