我写了一个查询来从MySQL中选择产品：
这就是它的样子：
SELECT `products`.`id` AS `id`, `products`.`name` AS `name`, `products`.`slug` AS `slug`, `products`.`ord` AS `ord`,
SUBSTRING_INDEX(GROUP_CONCAT(products_photos.name ORDER BY products_photos.ord ASC SEPARATOR ","), ",", 1) AS `photo`,
SUBSTRING_INDEX(GROUP_CONCAT(products_attributes.price ORDER BY products_attributes.price ASC SEPARATOR ","), ",", 1) AS `price`
FROM `products`
LEFT JOIN `products_photos` ON `products`.`id` = `products_photos`.`product_id`
LEFT JOIN `products_attributes` ON `products`.`id` = `products_attributes`.`product_id`
LEFT JOIN `products_categories` ON `products`.`id` = `products_categories`.`product_id`
WHERE `products_categories`.`category_id` = '5' AND `products`.`status` = '1'
GROUP BY `products`.`id`
ORDER BY `ord` ASC
我想知道查询的照片和属性部分，是否有更好的方法从连接表中选择第一张照片和最小价格？ 我的桌子上会有很多产品，我担心未来的表现，因为我不擅长MySQL：）
任何指针都会受到赞赏：）