SELECT 
  cscart_products.*, 
  cscart_product_descriptions.*, 
  MIN(
    IF(
      cscart_product_prices.percentage_discount = 0, 
      cscart_product_prices.price, 
      cscart_product_prices.price - (
        cscart_product_prices.price * cscart_product_prices.percentage_discount
      )/ 100
    )
  ) as price, 
  GROUP_CONCAT(
    CASE WHEN (
      cscart_products_categories.link_type = 'M'
    ) THEN CONCAT(
      cscart_products_categories.category_id, 
      'M'
    ) ELSE cscart_products_categories.category_id END 
    ORDER BY 
      cscart_categories.company_id = 1 DESC, 
      (
        cscart_products_categories.link_type = 'M'
      ) DESC, 
      cscart_products_categories.category_position ASC, 
      cscart_products_categories.category_id ASC
  ) as category_ids, 
  popularity.total as popularity, 
  IF(
    shared_prices.product_id IS NOT NULL, 
    MIN(
      IF(
        shared_prices.percentage_discount = 0, 
        shared_prices.price, 
        shared_prices.price - (
          shared_prices.price * shared_prices.percentage_discount
        )/ 100
      )
    ), 
    MIN(
      IF(
        cscart_product_prices.percentage_discount = 0, 
        cscart_product_prices.price, 
        cscart_product_prices.price - (
          cscart_product_prices.price * cscart_product_prices.percentage_discount
        )/ 100
      )
    )
  ) as price, 
  companies.company as company_name, 
  cscart_seo_names.name as seo_name, 
  cscart_seo_names.path as seo_path, 
  cscart_discussion.type as discussion_type 
FROM 
  cscart_products 
  LEFT JOIN cscart_product_prices ON cscart_product_prices.product_id = cscart_products.product_id 
  AND cscart_product_prices.lower_limit = 1 
  AND cscart_product_prices.usergroup_id IN (0, 0, 1) 
  LEFT JOIN cscart_product_descriptions ON cscart_product_descriptions.product_id = cscart_products.product_id 
  AND cscart_product_descriptions.lang_code = 'ru' 
  LEFT JOIN cscart_ult_product_prices shared_prices ON shared_prices.product_id = cscart_products.product_id 
  AND shared_prices.company_id = 1 
  AND shared_prices.lower_limit = 1 
  AND shared_prices.usergroup_id IN (0, 0, 1) 
  LEFT JOIN cscart_companies as companies ON companies.company_id = cscart_products.company_id 
  INNER JOIN cscart_products_categories ON cscart_products_categories.product_id = cscart_products.product_id 
  INNER JOIN cscart_categories ON cscart_categories.category_id = cscart_products_categories.category_id 
  AND cscart_categories.company_id = 1 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND (
    cscart_products.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_products.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_products.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A', 'H') 
  AND cscart_products.status IN ('A', 'H') 
  LEFT JOIN cscart_product_popularity as popularity ON popularity.product_id = cscart_products.product_id 
  LEFT JOIN cscart_seo_names ON cscart_seo_names.object_id = 8216 
  AND cscart_seo_names.type = 'p' 
  AND cscart_seo_names.dispatch = '' 
  AND cscart_seo_names.lang_code = 'ru' 
  AND cscart_seo_names.company_id = 1 
  LEFT JOIN cscart_discussion ON cscart_discussion.object_id = cscart_products.product_id 
  AND cscart_discussion.object_type = 'P' 
  AND cscart_discussion.company_id = 1 
WHERE 
  cscart_products.product_id = 8216 
  AND (
    companies.status IN ('A') 
    OR cscart_products.company_id = 0
  ) 
GROUP BY 
  cscart_products.product_id

Query time 0.00128

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_products const PRIMARY,status PRIMARY 3 const 1
1 SIMPLE popularity const PRIMARY,total PRIMARY 3 const 1
1 SIMPLE cscart_product_prices ref usergroup,product_id,lower_limit,usergroup_id product_id 3 const 1 Using where
1 SIMPLE cscart_product_descriptions ref PRIMARY,product_id product_id 3 const 1 Using where
1 SIMPLE shared_prices ref usergroup,product_id,company_id,lower_limit,usergroup_id product_id 3 const 1 Using where
1 SIMPLE companies eq_ref PRIMARY PRIMARY 4 const 1 Using where
1 SIMPLE cscart_products_categories ref PRIMARY,pt pt 3 const 6
1 SIMPLE cscart_categories ref PRIMARY,c_status,p_category_id p_category_id 3 stroysan.cscart_products_categories.category_id 1 Using index condition; Using where
1 SIMPLE cscart_seo_names const PRIMARY,dispatch PRIMARY 210 const,const,const,const,const 1 Using where
1 SIMPLE cscart_discussion const object_id,company_id object_id 10 const,const,const 1 Using where

Result

product_id product_code product_type status company_id list_price amount weight length width height shipping_freight low_avail_limit timestamp updated_timestamp usergroup_ids is_edp edp_shipping unlimited_download tracking free_shipping zero_price_action is_pbp is_op is_oper is_returnable return_period avail_since out_of_stock_actions localization min_qty max_qty qty_step list_qty_count tax_ids age_verification age_limit options_type exceptions_type details_layout shipping_params facebook_obj_type parent_product_id __variation_code __variation_options __is_default_variation yml2_brand yml2_origin_country yml2_store yml2_pickup yml2_delivery yml2_adult yml2_delivery_options yml2_bid yml2_model yml2_sales_notes yml2_type_prefix yml2_offer_type yml2_market_category yml2_manufacturer_warranty yml2_expiry yml2_purchase_price yml2_description yml2_cpa buy_now_url external_id update_1c source_import_key cp_in_stock_status cp_in_stock_specific_status cp_out_of_stock_status cp_out_of_stock_specific_status ab__stickers_manual_ids ab__stickers_generated_ids lang_code product shortname short_description full_description meta_keywords meta_description search_words page_title age_warning_message promo_text price category_ids popularity company_name seo_name seo_path discussion_type
8216 3450 P A 1 0.00 7 0.000 0 0 0 0.00 0 1554661096 1756968235 0 N N N B N P N N N Y 10 0 B 0 0 0 0 N 0 P F a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} 0 N Политек Россия N 1 Фитинги для канализационных труб 1 0 Гарантия производителя Y Y 0 0 ru Переход 110+50 эксцентрический ПП Канализационный укороченный Переход 110+50 эксцентрический ПП Канализационный укороченный Переход 110+50 эксцентрический ПП Канализационный укороченный Переход 110+50 эксцентрический ПП Канализационный укороченный, Гарантия 1 год, покупайте по отличной цене в магазине Строй Сан, быстро комплектуем и доставляем по Нижнему Новгороду и области Переход 110+50 эксцентрический ПП Канализационный укороченный Канализационный Переход ПП эксцентр 110+50 укороченный, купить недорого в Нижнем Новгороде в магазине СтройСан - доставка по России <ul><li>- <strong>Самовывоз или Доставка</strong> по Нижнему Новгороду</li><li><strong>- Доставка по области и в другие регионы РФ от 700р, даже если в заказе несколько позиций</strong></li></ul> Переход 110+50 эксцентрический ПП Канализационный укороченный 94.000000 575M,576,2755 3304 Stroy-San perehod-pp-ekscentr.11050-ukorochennyy 573/575