SELECT 
  jmj_products.*, 
  jmj_product_descriptions.*, 
  COALESCE(
    jmj_master_products_storefront_min_price.price, 
    MIN(
      IF(
        jmj_product_prices.percentage_discount = 0, 
        jmj_product_prices.price, 
        jmj_product_prices.price - (
          jmj_product_prices.price * jmj_product_prices.percentage_discount
        )/ 100
      )
    )
  ) as price, 
  GROUP_CONCAT(
    CASE WHEN (
      jmj_products_categories.link_type = 'M'
    ) THEN CONCAT(
      jmj_products_categories.category_id, 
      'M'
    ) ELSE jmj_products_categories.category_id END 
    ORDER BY 
      jmj_categories.storefront_id IN (0, 1) DESC, 
      (
        jmj_products_categories.link_type = 'M'
      ) DESC, 
      jmj_products_categories.category_position ASC, 
      jmj_products_categories.category_id ASC
  ) as category_ids, 
  popularity.total as popularity, 
  company_descr.i18n_company as company_name, 
  jmj_products.master_product_id, 
  jmj_products.master_product_status, 
  jmj_products.is_returnable, 
  jmj_products.return_period, 
  jmj_product_sales.amount as sales_amount, 
  jmj_discussion.type as discussion_type 
FROM 
  jmj_products 
  LEFT JOIN jmj_product_prices ON jmj_product_prices.product_id = jmj_products.product_id 
  AND jmj_product_prices.lower_limit = 1 
  AND jmj_product_prices.usergroup_id IN (0, 0, 1) 
  LEFT JOIN jmj_product_descriptions ON jmj_product_descriptions.product_id = jmj_products.product_id 
  AND jmj_product_descriptions.lang_code = 'en' 
  LEFT JOIN jmj_company_descriptions as company_descr ON company_descr.company_id = jmj_products.company_id 
  AND company_descr.lang_code = 'en' 
  LEFT JOIN jmj_companies as companies ON companies.company_id = jmj_products.company_id 
  INNER JOIN jmj_products_categories ON jmj_products_categories.product_id = jmj_products.product_id 
  INNER JOIN jmj_categories ON jmj_categories.category_id = jmj_products_categories.category_id 
  AND jmj_categories.storefront_id IN (0, 1) 
  AND (
    jmj_categories.usergroup_ids = '' 
    OR FIND_IN_SET(0, jmj_categories.usergroup_ids) 
    OR FIND_IN_SET(1, jmj_categories.usergroup_ids)
  ) 
  AND (
    jmj_products.usergroup_ids = '' 
    OR FIND_IN_SET(0, jmj_products.usergroup_ids) 
    OR FIND_IN_SET(1, jmj_products.usergroup_ids)
  ) 
  AND jmj_categories.status IN ('A', 'H') 
  AND jmj_products.status IN ('A', 'H') 
  LEFT JOIN jmj_product_popularity as popularity ON popularity.product_id = jmj_products.product_id 
  LEFT JOIN jmj_master_products_storefront_min_price ON jmj_master_products_storefront_min_price.product_id = jmj_products.product_id 
  AND jmj_master_products_storefront_min_price.storefront_id = 1 
  LEFT JOIN jmj_product_sales ON jmj_product_sales.product_id = jmj_products.product_id 
  AND jmj_product_sales.category_id = 20 
  LEFT JOIN jmj_discussion ON jmj_discussion.object_id = jmj_products.product_id 
  AND jmj_discussion.object_type = 'P' 
WHERE 
  jmj_products.product_id = 955 
  AND (
    companies.status IN ('A') 
    OR jmj_products.company_id = 0
  ) 
GROUP BY 
  jmj_products.product_id

Query time 0.00153

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.58"
    },
    "grouping_operation": {
      "using_filesort": false,
      "nested_loop": [
        {
          "table": {
            "table_name": "jmj_products",
            "access_type": "const",
            "possible_keys": [
              "PRIMARY",
              "status"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "product_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": [
              "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",
              "buy_now_url",
              "ab__stickers_manual_ids",
              "ab__stickers_generated_ids",
              "net_price",
              "hsn_number",
              "integer_in_full_description",
              "master_product_id",
              "master_product_status",
              "master_product_offers_count",
              "is_stock_split_by_warehouses",
              "brand_variant"
            ]
          }
        },
        {
          "table": {
            "table_name": "popularity",
            "access_type": "const",
            "possible_keys": [
              "PRIMARY",
              "total"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "product_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": "32"
            },
            "used_columns": [
              "product_id",
              "total"
            ]
          }
        },
        {
          "table": {
            "table_name": "jmj_master_products_storefront_min_price",
            "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": "16"
            },
            "used_columns": [
              "storefront_id",
              "product_id",
              "price"
            ]
          }
        },
        {
          "table": {
            "table_name": "jmj_product_sales",
            "access_type": "const",
            "possible_keys": [
              "PRIMARY",
              "pa"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id",
              "product_id"
            ],
            "key_length": "6",
            "ref": [
              "const",
              "const"
            ],
            "rows_examined_per_scan": 0,
            "rows_produced_per_join": 1,
            "filtered": "0.00",
            "unique_row_not_found": true,
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.20",
              "prefix_cost": "0.00",
              "data_read_per_join": "16"
            },
            "used_columns": [
              "category_id",
              "product_id",
              "amount"
            ]
          }
        },
        {
          "table": {
            "table_name": "jmj_discussion",
            "access_type": "const",
            "possible_keys": [
              "object_id"
            ],
            "key": "object_id",
            "used_key_parts": [
              "object_id",
              "object_type"
            ],
            "key_length": "6",
            "ref": [
              "const",
              "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": "24"
            },
            "used_columns": [
              "object_id",
              "object_type",
              "type"
            ]
          }
        },
        {
          "table": {
            "table_name": "jmj_products_categories",
            "access_type": "ref",
            "possible_keys": [
              "PRIMARY",
              "pt"
            ],
            "key": "pt",
            "used_key_parts": [
              "product_id"
            ],
            "key_length": "3",
            "ref": [
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 1,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.00",
              "eval_cost": "0.20",
              "prefix_cost": "1.20",
              "data_read_per_join": "16"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "link_type",
              "category_position"
            ]
          }
        },
        {
          "table": {
            "table_name": "jmj_categories",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "c_status",
              "p_category_id"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id"
            ],
            "key_length": "3",
            "ref": [
              "jmj_test.jmj_products_categories.category_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "5.00",
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.01",
              "prefix_cost": "1.40",
              "data_read_per_join": "198"
            },
            "used_columns": [
              "category_id",
              "usergroup_ids",
              "status",
              "storefront_id"
            ],
            "attached_condition": "((`jmj_test`.`jmj_categories`.`storefront_id` in (0,1)) and ((`jmj_test`.`jmj_categories`.`usergroup_ids` = '') or find_in_set(0,`jmj_test`.`jmj_categories`.`usergroup_ids`) or find_in_set(1,`jmj_test`.`jmj_categories`.`usergroup_ids`)) and (`jmj_test`.`jmj_categories`.`status` in ('A','H')))"
          }
        },
        {
          "table": {
            "table_name": "jmj_product_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": [
              "const"
            ],
            "rows_examined_per_scan": 2,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.10",
              "eval_cost": "0.02",
              "prefix_cost": "1.52",
              "data_read_per_join": "2"
            },
            "used_columns": [
              "product_id",
              "price",
              "percentage_discount",
              "lower_limit",
              "usergroup_id"
            ],
            "attached_condition": "<if>(is_not_null_compl(jmj_product_prices), ((`jmj_test`.`jmj_product_prices`.`lower_limit` = 1) and (`jmj_test`.`jmj_product_prices`.`usergroup_id` in (0,0,1))), true)"
          }
        },
        {
          "table": {
            "table_name": "jmj_product_descriptions",
            "access_type": "const",
            "possible_keys": [
              "PRIMARY",
              "product_id"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "product_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "const",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.02",
              "prefix_cost": "1.54",
              "data_read_per_join": "390"
            },
            "used_columns": [
              "product_id",
              "lang_code",
              "product",
              "shortname",
              "short_description",
              "full_description",
              "meta_keywords",
              "meta_description",
              "search_words",
              "page_title",
              "age_warning_message",
              "promo_text"
            ]
          }
        },
        {
          "table": {
            "table_name": "company_descr",
            "access_type": "const",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "company_id",
              "lang_code"
            ],
            "key_length": "10",
            "ref": [
              "const",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.02",
              "prefix_cost": "1.56",
              "data_read_per_join": "176"
            },
            "used_columns": [
              "company_id",
              "lang_code",
              "i18n_company"
            ]
          }
        },
        {
          "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": 0,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.02",
              "prefix_cost": "1.58",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "company_id",
              "status"
            ],
            "attached_condition": "<if>(found_match(companies), ((`jmj_test`.`companies`.`status` = 'A') or 0), true)"
          }
        }
      ]
    }
  }
}