postgresql 7.1 select p.product_id, p.product_name, p.dirname, r.recommendation_text, o.offer_code from ec_product_recommendations r, ec_products_displayable p left outer join ec_user_session_offer_codes o on (p.product_id = o.product_id and user_session_id = :user_session_id) where p.product_id = r.product_id and r.${sub}category_id=:${sub}category_id and r.active_p='t' and (r.user_class_id is null or r.user_class_id in (select user_class_id from ec_user_class_user_map m where user_id=:user_id $user_class_approved_p_clause)) order by p.product_name select p.product_id, p.product_name, p.one_line_description, o.offer_code, p.dirname from $product_map($sub) m, ec_products_searchable p left outer join ec_user_session_offer_codes o on (p.product_id = o.product_id and user_session_id = :user_session_id) where p.product_id = m.product_id and m.${sub}category_id = :${sub}category_id $exclude_subproducts order by p.product_name