<!-- testing -->SELECT SQL_CALC_FOUND_ROWS t.* FROM(
              
                SELECT
                image.path,
                (SELECT MAX(timestamp) FROM product_attribute WHERE product.id=product_attribute.product_id AND product_attribute.timestamp > 0) AS expires,
                brand.brand_name AS brand_name,
                brand.show_on_auckscuba,
                product.*
                
                FROM product
                JOIN brand ON brand.id=product.brand_id
                LEFT JOIN image ON product.id=image.product_id AND image.position=0
                WHERE brand.brand_name='mares' AND brand.id=product.brand_id  AND product.status=1 AND brand.show_on_auckscuba=1
                AND (product.enable_stock_control=0 OR product.current_stock > 0 OR (product.enable_stock_control=1 AND (product.display_stock_sold=0 OR ( product.display_stock_sold=1 AND product.last_sold > 1540993737 )) ) )

                GROUP BY product.id
								ORDER BY brand.brand_name ASC
         ) t
         WHERE t.expires IS NULL OR t.expires > 1542203337
         ORDER BY t.product_name ASC, brand.brand_name ASC
         
         LIMIT 0,100
       

<br /><br />


Unknown column 'brand.brand_name' in 'order clause'