Ошибка БД

Error Number: 1052

Column 'type' in where clause is ambiguous

SELECT SQL_CALC_FOUND_ROWS pd.id, p.id as my_new_id, p.category_id as my_cat_id, p.producer_id, p.alias, p.name_0 as name, pd.image, p.price, p.type, pd.short_0 as short, pd.body_0 as body, p.nice_alias, p.store, pd.rank, pd.marker, pd.marker_delivery, pd.marker_discount, pd.marker_iq, pd.marker_partpay, pd.marker_is_restoration, p.store_count, p.price_for_rozetka, pd.bar_code FROM (prod p) LEFT JOIN prod_description pd ON p.alias=pd.alias WHERE `p`.`active` = 'true' AND `type` = 'boilers' ORDER BY p.name_0 asc