SELECT 
  MIN(prices.price) as ab__min_price, 
  MAX(prices.price) as ab__max_price 
FROM 
  cscart_products as products 
  LEFT JOIN cscart_product_descriptions as descr1 ON descr1.product_id = products.product_id 
  AND descr1.lang_code = 'en' 
  LEFT JOIN cscart_product_prices as prices ON prices.product_id = products.product_id 
  AND prices.lower_limit = 1 
  LEFT JOIN cscart_companies AS companies ON companies.company_id = products.company_id 
  INNER JOIN cscart_products_categories as products_categories ON products_categories.product_id = products.product_id 
  INNER JOIN cscart_categories ON cscart_categories.category_id = products_categories.category_id 
  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_categories.status IN ('A', 'H') 
  AND cscart_categories.storefront_id IN (0, 3) 
  LEFT JOIN cscart_warehouses_sum_products_amount as war_sum_amount ON war_sum_amount.product_id = products.product_id 
WHERE 
  prices.price > 0 
  AND (
    companies.status IN ('A', 'S') 
    OR products.company_id = 0
  ) 
  AND products.company_id = 137 
  AND (
    products.usergroup_ids = '' 
    OR FIND_IN_SET(0, products.usergroup_ids) 
    OR FIND_IN_SET(1, products.usergroup_ids)
  ) 
  AND products.status IN ('A') 
  AND prices.usergroup_id IN (0, 0, 1) 
  AND products.company_id = 137 
  AND products.master_product_status IN ('A')

Query time 0.37153

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "32363.20"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "war_sum_amount",
          "access_type": "system",
          "possible_keys": [
            "PRIMARY"
          ],
          "rows_examined_per_scan": 0,
          "rows_produced_per_join": 1,
          "filtered": "0.00",
          "const_row_not_found": true,
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "0.10",
            "prefix_cost": "0.00",
            "data_read_per_join": "16"
          },
          "used_columns": [
            "product_id"
          ]
        }
      },
      {
        "table": {
          "table_name": "products",
          "access_type": "ALL",
          "possible_keys": [
            "PRIMARY",
            "status"
          ],
          "rows_examined_per_scan": 270845,
          "rows_produced_per_join": 2622,
          "filtered": "0.97",
          "cost_info": {
            "read_cost": "31389.00",
            "eval_cost": "262.29",
            "prefix_cost": "31651.29",
            "data_read_per_join": "19M"
          },
          "used_columns": [
            "product_id",
            "status",
            "company_id",
            "usergroup_ids",
            "master_product_status"
          ],
          "attached_condition": "((`s2cart`.`products`.`company_id` = 137) and ((`s2cart`.`products`.`usergroup_ids` = '') or (0 <> find_in_set(0,`s2cart`.`products`.`usergroup_ids`)) or (0 <> find_in_set(1,`s2cart`.`products`.`usergroup_ids`))) and (`s2cart`.`products`.`status` = 'A') and (`s2cart`.`products`.`master_product_status` = 'A'))"
        }
      },
      {
        "table": {
          "table_name": "companies",
          "access_type": "const",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "company_id"
          ],
          "key_length": "4",
          "ref": [
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 749,
          "filtered": "28.57",
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "74.94",
            "prefix_cost": "31913.57",
            "data_read_per_join": "6M"
          },
          "used_columns": [
            "company_id",
            "status"
          ],
          "attached_condition": "<if>(found_match(companies), (`s2cart`.`companies`.`status` in ('A','S')), true)"
        }
      },
      {
        "table": {
          "table_name": "descr1",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY",
            "product_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "product_id",
            "lang_code"
          ],
          "key_length": "9",
          "ref": [
            "s2cart.products.product_id",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 749,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "74.94",
            "prefix_cost": "31988.51",
            "data_read_per_join": "5M"
          },
          "used_columns": [
            "product_id",
            "lang_code"
          ]
        }
      },
      {
        "table": {
          "table_name": "prices",
          "access_type": "ref",
          "possible_keys": [
            "usergroup",
            "product_id",
            "lower_limit",
            "usergroup_id"
          ],
          "key": "product_id",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "3",
          "ref": [
            "s2cart.products.product_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 249,
          "filtered": "33.33",
          "cost_info": {
            "read_cost": "187.35",
            "eval_cost": "24.98",
            "prefix_cost": "32250.80",
            "data_read_per_join": "5K"
          },
          "used_columns": [
            "product_id",
            "price",
            "lower_limit",
            "usergroup_id"
          ],
          "attached_condition": "((`s2cart`.`prices`.`lower_limit` = 1) and (`s2cart`.`prices`.`price` > 0.00) and (`s2cart`.`prices`.`usergroup_id` in (0,0,1)))"
        }
      },
      {
        "table": {
          "table_name": "products_categories",
          "access_type": "ref",
          "possible_keys": [
            "PRIMARY",
            "pt"
          ],
          "key": "pt",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "3",
          "ref": [
            "s2cart.products.product_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 249,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "62.44",
            "eval_cost": "24.98",
            "prefix_cost": "32338.22",
            "data_read_per_join": "3K"
          },
          "used_columns": [
            "product_id",
            "category_id"
          ]
        }
      },
      {
        "table": {
          "table_name": "cscart_categories",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY",
            "c_status",
            "p_category_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "category_id"
          ],
          "key_length": "3",
          "ref": [
            "s2cart.products_categories.category_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 12,
          "filtered": "5.00",
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "1.25",
            "prefix_cost": "32363.20",
            "data_read_per_join": "44K"
          },
          "used_columns": [
            "category_id",
            "usergroup_ids",
            "status",
            "storefront_id"
          ],
          "attached_condition": "(((`s2cart`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`s2cart`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`s2cart`.`cscart_categories`.`usergroup_ids`))) and (`s2cart`.`cscart_categories`.`status` in ('A','H')) and (`s2cart`.`cscart_categories`.`storefront_id` in (0,3)))"
        }
      }
    ]
  }
}