On 12/05/2010 05:57 PM, Mario Splivalo wrote:
The issue in both approaches is that if I have two product_ids that are viewed same number of times and share the first place as most viewed products by that user, I'll get only one of them (LIMIT 1 OR MAX() can only return one row :).
And then, to jump again into my own mouth - your approach, Jayadevan, correctly gives me both product_id's if they're viewed the same number of times.
Mario -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql