Hi, This query:
select c.id_currency,max(p.modified_on) from currency c left join price_line p using (id_currency) where p.id_line=1 group by c.id_currency; doesn't list all c.id_currency's, only those with a price_line. However this one does: select c.id_currency,max(p.modified_on) from currency c left join price_line p on (p.id_currency = c.id_currency and p.id_line=1) group by c.id_currency; How come? Thanks, -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
