SELECT 
  cscart_company_descriptions.*, 
  cscart_companies.*, 
  p.price, 
  p.periodicity, 
  p.commission, 
  p.products_limit, 
  p.revenue_limit, 
  p.vendor_store, 
  p.categories, 
  p.storefronts 
FROM 
  cscart_companies 
  LEFT JOIN cscart_company_descriptions ON cscart_company_descriptions.company_id = cscart_companies.company_id 
  AND cscart_company_descriptions.lang_code = 'en' 
  LEFT JOIN cscart_vendor_plans p ON p.plan_id = cscart_companies.plan_id 
WHERE 
  cscart_companies.company_id IN('621') 
ORDER BY 
  cscart_companies.company_id asc 
LIMIT 
  0, 1

Query time 0.00382

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.00"
    },
    "ordering_operation": {
      "using_filesort": false,
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_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": 1,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.20",
              "prefix_cost": "0.00",
              "data_read_per_join": "9K"
            },
            "used_columns": [
              "company_id",
              "status",
              "company",
              "lang_code",
              "address",
              "city",
              "state",
              "country",
              "zipcode",
              "email",
              "phone",
              "url",
              "storefront",
              "secure_storefront",
              "entry_page",
              "redirect_customer",
              "countries_list",
              "timestamp",
              "shippings",
              "logos",
              "request_user_id",
              "request_account_name",
              "request_account_data",
              "pre_moderation",
              "pre_moderation_edit",
              "pre_moderation_edit_vendors",
              "plan_id",
              "sd_vendor_helper",
              "identifier_facebook_pixel",
              "stripe_connect_account_id",
              "tax_number",
              "facebook_pixel_id",
              "facebook_api_token",
              "handling_time_us",
              "handling_time_uk",
              "handling_time_it",
              "handling_time_in",
              "handling_time_mx",
              "handling_time_es",
              "handling_time_de",
              "handling_time_fr",
              "handling_time_cn",
              "handling_time_ca",
              "handling_time_jp",
              "handling_time",
              "blocked_date",
              "booking_data",
              "stripe_connect_account_type",
              "registered_from_storefront_id",
              "ec_rfq_whatsapp_number",
              "ec_rfq_phone_number",
              "ec_rfq_bhf",
              "ec_rfq_bht",
              "sd_ga_tracking_code",
              "sd_ga_api_secret"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_company_descriptions",
            "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": 1,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.00",
              "eval_cost": "0.20",
              "prefix_cost": "0.00",
              "data_read_per_join": "3K"
            },
            "used_columns": [
              "company_id",
              "lang_code",
              "company_description",
              "terms",
              "meta_keywords",
              "meta_description",
              "page_title",
              "i18n_company",
              "i18n_address",
              "i18n_city"
            ]
          }
        },
        {
          "table": {
            "table_name": "p",
            "access_type": "const",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "plan_id"
            ],
            "key_length": "4",
            "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": "80"
            },
            "used_columns": [
              "plan_id",
              "price",
              "periodicity",
              "commission",
              "products_limit",
              "revenue_limit",
              "vendor_store",
              "categories",
              "storefronts"
            ]
          }
        }
      ]
    }
  }
}