SELECT SQL_CACHE DISTINCT products_id FROM products_ymm WHERE (products_car_make='jeep') and (products_car_model='Cherokee Xj' or products_car_model='') and ((products_car_year_bof <= '1990' and products_car_year_eof >= '1990') or (products_car_year_bof=0 and products_car_year_eof=0))
