SELECT 
  tmall_products.*, 
  tmall_product_descriptions.*, 
  COALESCE(
    tmall_master_products_storefront_min_price.price, 
    MIN(
      IF(
        tmall_product_prices.percentage_discount = 0, 
        tmall_product_prices.price, 
        tmall_product_prices.price - (
          tmall_product_prices.price * tmall_product_prices.percentage_discount
        )/ 100
      )
    )
  ) as price, 
  GROUP_CONCAT(
    CASE WHEN (
      tmall_products_categories.link_type = 'M'
    ) THEN CONCAT(
      tmall_products_categories.category_id, 
      'M'
    ) ELSE tmall_products_categories.category_id END 
    ORDER BY 
      tmall_categories.storefront_id IN (0, 1) DESC, 
      (
        tmall_products_categories.link_type = 'M'
      ) DESC, 
      tmall_products_categories.category_position ASC, 
      tmall_products_categories.category_id ASC
  ) as category_ids, 
  popularity.total as popularity, 
  company_descr.i18n_company as company_name, 
  tmall_products.master_product_id, 
  tmall_products.master_product_status, 
  tmall_product_sales.amount as sales_amount, 
  tmall_discussion.type as discussion_type, 
  tmall_product_review_prepared_data.average_rating average_rating, 
  tmall_product_review_prepared_data.reviews_count product_reviews_count 
FROM 
  tmall_products 
  LEFT JOIN tmall_product_prices ON tmall_product_prices.product_id = tmall_products.product_id 
  AND tmall_product_prices.lower_limit = 1 
  AND tmall_product_prices.usergroup_id IN (0, 0, 1) 
  LEFT JOIN tmall_product_descriptions ON tmall_product_descriptions.product_id = tmall_products.product_id 
  AND tmall_product_descriptions.lang_code = 'en' 
  LEFT JOIN tmall_company_descriptions as company_descr ON company_descr.company_id = tmall_products.company_id 
  AND company_descr.lang_code = 'en' 
  LEFT JOIN tmall_companies as companies ON companies.company_id = tmall_products.company_id 
  INNER JOIN tmall_products_categories ON tmall_products_categories.product_id = tmall_products.product_id 
  INNER JOIN tmall_categories ON tmall_categories.category_id = tmall_products_categories.category_id 
  AND tmall_categories.storefront_id IN (0, 1) 
  AND (
    tmall_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, tmall_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, tmall_categories.usergroup_ids
    )
  ) 
  AND (
    tmall_products.usergroup_ids = '' 
    OR FIND_IN_SET(0, tmall_products.usergroup_ids) 
    OR FIND_IN_SET(1, tmall_products.usergroup_ids)
  ) 
  AND tmall_categories.status IN ('A', 'H') 
  AND tmall_products.status IN ('A', 'H') 
  LEFT JOIN tmall_product_popularity as popularity ON popularity.product_id = tmall_products.product_id 
  LEFT JOIN tmall_master_products_storefront_min_price ON tmall_master_products_storefront_min_price.product_id = tmall_products.product_id 
  AND tmall_master_products_storefront_min_price.storefront_id = 1 
  LEFT JOIN tmall_product_sales ON tmall_product_sales.product_id = tmall_products.product_id 
  AND tmall_product_sales.category_id = 221 
  LEFT JOIN tmall_discussion ON tmall_discussion.object_id = tmall_products.product_id 
  AND tmall_discussion.object_type = 'P' 
  LEFT JOIN tmall_product_review_prepared_data ON tmall_product_review_prepared_data.product_id = tmall_products.product_id 
  AND tmall_product_review_prepared_data.storefront_id = 0 
WHERE 
  tmall_products.product_id = 44 
  AND (
    companies.status IN ('A') 
    OR tmall_products.company_id = 0
  ) 
GROUP BY 
  tmall_products.product_id

Query time 0.00840

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.011784126,
    "nested_loop": [
      {
        "table": {
          "table_name": "tmall_master_products_storefront_min_price",
          "access_type": "system",
          "possible_keys": ["PRIMARY"],
          "rows": 0,
          "filtered": 0,
          "const_row_not_found": true
        }
      },
      {
        "table": {
          "table_name": "tmall_products",
          "access_type": "const",
          "possible_keys": ["PRIMARY", "status"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "ref": ["const"],
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "popularity",
          "access_type": "const",
          "possible_keys": ["PRIMARY", "total"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "ref": ["const"],
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "tmall_product_sales",
          "access_type": "const",
          "possible_keys": ["PRIMARY", "pa"],
          "key": "PRIMARY",
          "key_length": "6",
          "used_key_parts": ["category_id", "product_id"],
          "ref": ["const", "const"],
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "tmall_discussion",
          "access_type": "const",
          "possible_keys": ["object_id"],
          "key": "object_id",
          "key_length": "6",
          "used_key_parts": ["object_id", "object_type"],
          "ref": ["const", "const"],
          "rows": 1,
          "filtered": 100,
          "unique_row_not_found": true
        }
      },
      {
        "table": {
          "table_name": "tmall_product_review_prepared_data",
          "access_type": "const",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "7",
          "used_key_parts": ["product_id", "storefront_id"],
          "ref": ["const", "const"],
          "rows": 1,
          "filtered": 100,
          "unique_row_not_found": true
        }
      },
      {
        "table": {
          "table_name": "tmall_product_prices",
          "access_type": "ref",
          "possible_keys": [
            "usergroup",
            "product_id",
            "lower_limit",
            "usergroup_id"
          ],
          "key": "product_id",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "ref": ["const"],
          "loops": 1,
          "rows": 1,
          "cost": 0.002024411,
          "filtered": 97.28681946,
          "attached_condition": "trigcond(tmall_product_prices.lower_limit = 1 and tmall_product_prices.usergroup_id in (0,0,1))"
        }
      },
      {
        "table": {
          "table_name": "tmall_product_descriptions",
          "access_type": "const",
          "possible_keys": ["PRIMARY", "product_id"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["product_id", "lang_code"],
          "ref": ["const", "const"],
          "loops": 1,
          "rows": 1,
          "cost": 0.001933826,
          "filtered": 100,
          "attached_condition": "trigcond(tmall_product_descriptions.lang_code = 'en')"
        }
      },
      {
        "table": {
          "table_name": "company_descr",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "10",
          "used_key_parts": ["company_id", "lang_code"],
          "ref": ["const", "const"],
          "loops": 1,
          "rows": 1,
          "cost": 0.001933826,
          "filtered": 100,
          "attached_condition": "trigcond(company_descr.lang_code = 'en')"
        }
      },
      {
        "table": {
          "table_name": "companies",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "4",
          "used_key_parts": ["company_id"],
          "ref": ["const"],
          "loops": 1,
          "rows": 1,
          "cost": 0.001933826,
          "filtered": 100,
          "attached_condition": "trigcond(companies.`status` = 'A')"
        }
      },
      {
        "table": {
          "table_name": "tmall_products_categories",
          "access_type": "ref",
          "possible_keys": ["PRIMARY", "pt"],
          "key": "pt",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "ref": ["const"],
          "loops": 1,
          "rows": 1,
          "cost": 0.002024411,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "tmall_categories",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY", "c_status", "p_category_id"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["category_id"],
          "ref": ["tmall.tmall_products_categories.category_id"],
          "loops": 1,
          "rows": 1,
          "cost": 0.001933826,
          "filtered": 100,
          "attached_condition": "tmall_categories.storefront_id in (0,1) and (tmall_categories.usergroup_ids = '' or find_in_set(0,tmall_categories.usergroup_ids) or find_in_set(1,tmall_categories.usergroup_ids)) and tmall_categories.`status` in ('A','H')"
        }
      }
    ]
  }
}