SELECT 
  MIN(prices.price) as ab__min_price, 
  MAX(prices.price) as ab__max_price 
FROM 
  cscart_products as products 
  LEFT JOIN cscart_product_features_values as var_val_18 ON var_val_18.product_id = products.product_id 
  AND var_val_18.lang_code = 'ru' 
  AND var_val_18.feature_id = 18 
  LEFT JOIN cscart_product_descriptions as descr1 ON descr1.product_id = products.product_id 
  AND descr1.lang_code = 'ru' 
  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, 1) 
  LEFT JOIN cscart_ult_product_descriptions shared_descr ON shared_descr.product_id = products.product_id 
  AND shared_descr.company_id = 1 
  AND shared_descr.lang_code = 'ru' 
WHERE 
  prices.price > 0 
  AND (
    var_val_18.variant_id IN (89)
  ) 
  AND cscart_categories.category_id IN (237) 
  AND companies.status IN ('A') 
  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.parent_product_id = 0

Query time 0.00082

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "54.57"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "companies",
          "access_type": "system",
          "possible_keys": [
            "PRIMARY"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "0.20",
            "prefix_cost": "0.00",
            "data_read_per_join": "5K"
          },
          "used_columns": [
            "company_id",
            "status"
          ]
        }
      },
      {
        "table": {
          "table_name": "cscart_categories",
          "access_type": "const",
          "possible_keys": [
            "PRIMARY",
            "c_status",
            "p_category_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "category_id"
          ],
          "key_length": "3",
          "ref": [
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.00",
            "eval_cost": "0.20",
            "prefix_cost": "0.00",
            "data_read_per_join": "4K"
          },
          "used_columns": [
            "category_id",
            "storefront_id",
            "usergroup_ids",
            "status"
          ]
        }
      },
      {
        "table": {
          "table_name": "products_categories",
          "access_type": "ref",
          "possible_keys": [
            "PRIMARY",
            "pt"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "category_id"
          ],
          "key_length": "3",
          "ref": [
            "const"
          ],
          "rows_examined_per_scan": 19,
          "rows_produced_per_join": 19,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "1.45",
            "eval_cost": "3.80",
            "prefix_cost": "5.25",
            "data_read_per_join": "304"
          },
          "used_columns": [
            "product_id",
            "category_id"
          ],
          "attached_condition": "(`44mm_ru`.`products_categories`.`product_id` is not null)"
        }
      },
      {
        "table": {
          "table_name": "var_val_18",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY",
            "fl",
            "variant_id",
            "lang_code",
            "product_id",
            "fpl",
            "idx_product_feature_variant_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "feature_id",
            "product_id",
            "variant_id",
            "lang_code"
          ],
          "key_length": "15",
          "ref": [
            "const",
            "44mm_ru.products_categories.product_id",
            "const",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 19,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "19.00",
            "eval_cost": "3.80",
            "prefix_cost": "28.05",
            "data_read_per_join": "14K"
          },
          "used_columns": [
            "feature_id",
            "product_id",
            "variant_id",
            "lang_code"
          ]
        }
      },
      {
        "table": {
          "table_name": "products",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY",
            "status",
            "idx_parent_product_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "product_id"
          ],
          "key_length": "3",
          "ref": [
            "44mm_ru.products_categories.product_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "9.82",
          "cost_info": {
            "read_cost": "19.00",
            "eval_cost": "0.37",
            "prefix_cost": "50.85",
            "data_read_per_join": "12K"
          },
          "used_columns": [
            "product_id",
            "status",
            "company_id",
            "usergroup_ids",
            "parent_product_id"
          ],
          "attached_condition": "((`44mm_ru`.`products`.`company_id` = '1') and (`44mm_ru`.`products`.`parent_product_id` = 0) and ((`44mm_ru`.`products`.`usergroup_ids` = '') or find_in_set(0,`44mm_ru`.`products`.`usergroup_ids`) or find_in_set(1,`44mm_ru`.`products`.`usergroup_ids`)) and (`44mm_ru`.`products`.`status` = 'A'))"
        }
      },
      {
        "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": [
            "44mm_ru.products_categories.product_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 0,
          "filtered": "33.06",
          "cost_info": {
            "read_cost": "1.87",
            "eval_cost": "0.12",
            "prefix_cost": "53.09",
            "data_read_per_join": "14"
          },
          "used_columns": [
            "product_id",
            "price",
            "lower_limit",
            "usergroup_id"
          ],
          "attached_condition": "((`44mm_ru`.`prices`.`lower_limit` = 1) and (`44mm_ru`.`prices`.`price` > 0) and (`44mm_ru`.`prices`.`usergroup_id` in (0,0,1)))"
        }
      },
      {
        "table": {
          "table_name": "shared_descr",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY",
            "product_id",
            "company_id"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "product_id",
            "lang_code",
            "company_id"
          ],
          "key_length": "13",
          "ref": [
            "44mm_ru.products_categories.product_id",
            "const",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 0,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "0.62",
            "eval_cost": "0.12",
            "prefix_cost": "53.83",
            "data_read_per_join": "3K"
          },
          "used_columns": [
            "product_id",
            "lang_code",
            "company_id"
          ]
        }
      },
      {
        "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": [
            "44mm_ru.products_categories.product_id",
            "const"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 0,
          "filtered": "100.00",
          "using_index": true,
          "cost_info": {
            "read_cost": "0.62",
            "eval_cost": "0.12",
            "prefix_cost": "54.57",
            "data_read_per_join": "4K"
          },
          "used_columns": [
            "product_id",
            "lang_code"
          ]
        }
      }
    ]
  }
}