explain extended
SELECT 
	DISTINCT *,
	pd.name AS name, 
	p.image, 
	p.city as zone, 
	p.href as product_url, 
	p.product_id as product_id, 
	p.shipping_text as shipping_text, 
	p.payment_text as payment_text,
	p.sort_order, 
	p.shipping as shipping, 
	p.sort_order, 
	v.partner, 
	v.store_url as out_href, 
	co.name as country, 
	(SELECT price FROM product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '1' AND pd2.quantity = '1' 
		AND ((pd2.date_start = '0000-00-00' OR pd2.date_start < '2016-08-24 11:45:00') 
		AND (pd2.date_end = '0000-00-00' OR pd2.date_end > '2016-08-24 11:45:00')) 
		ORDER BY pd2.priority ASC, pd2.price ASC LIMIT 1) AS discount, 
	(SELECT price FROM product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '1' 
		AND ((ps.date_start = '0000-00-00' OR ps.date_start < '2016-08-24 11:45:00') 
		AND (ps.date_end = '0000-00-00' OR ps.date_end > '2016-08-24 11:45:00')) 
		ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special, 
	(SELECT points FROM product_reward pr WHERE pr.product_id = p.product_id AND pr.customer_group_id = '1') AS reward, 
	(SELECT ss.name FROM stock_status ss WHERE ss.stock_status_id = p.stock_status_id AND ss.language_id = '8') AS stock_status, 
	(SELECT wcd.unit FROM weight_class_description wcd WHERE p.weight_class_id = wcd.weight_class_id AND wcd.language_id = '8') AS weight_class, 
	(SELECT lcd.unit FROM length_class_description lcd WHERE p.length_class_id = lcd.length_class_id AND lcd.language_id = '8') AS length_class, 
	(SELECT AVG(rating) AS total FROM review r1 WHERE r1.product_id = p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating, 
	(SELECT COUNT(*) AS total FROM review r2 WHERE r2.product_id = p.product_id AND r2.status = '1' GROUP BY r2.product_id) AS reviews
FROM product p 
INNER JOIN product_description pd ON (p.product_id = pd.product_id) 
LEFT JOIN product_to_store p2s ON (p.product_id = p2s.product_id) 
INNER JOIN country co ON (p.country_id = co.country_id) 
INNER JOIN vendor vv ON (vv.vproduct_id = p.product_id) 
INNER JOIN vendors v ON (vv.vendor = v.vendor_id) 
WHERE p.product_id = '337388' 
	AND pd.language_id = '8' 
	AND p.status = '1' 
	AND p.date_available <= '2016-08-24 11:45:00';
SHOW warnings;