Error: Lost connection to MySQL server during query<br />Error No: 2013<br />
		INSERT INTO .product_viewed 
		(product_id, viewed) 
		VALUES (6473371, 1) 
		ON DUPLICATE KEY 
		UPDATE viewed = (viewed + 1)
		
		#UPDATE product_viewed 	SET viewed = (viewed + 1) 	WHERE product_id = '6473371'
		;