Не могу выполнить запрос: SELECT id, name, article, unit, price, hit, new, availability_product, description_name, lokis_name, group_id, visible, sort_order FROM products, products_state WHERE id=product_xetra_ruchka_rollerovaya_dizain_giloshirovanie_chernii_lak_b_f AND id=product_id GROUP BY id. Ошибка: Unknown column 'product_xetra_ruchka_rollerovaya_dizain_giloshirovanie_chernii_lak_b_f' in 'where clause'