SELECT 
  wk_seller_vacations.req_id, 
  wk_seller_vacations.company_id, 
  wk_seller_vacations.from, 
  wk_seller_vacations.to, 
  wk_seller_vacations.add_to_cart, 
  wk_seller_vacations.display_return_date, 
  wk_seller_vacations.status, 
  wk_seller_vacations_description.for_admin, 
  wk_seller_vacations_description.for_store 
FROM 
  wk_seller_vacations 
  LEFT JOIN wk_seller_vacations_description ON wk_seller_vacations_description.req_id = wk_seller_vacations.req_id 
  AND wk_seller_vacations_description.lang_code = 'en' 
WHERE 
  1 
  AND wk_seller_vacations.status = 'A' 
  AND wk_seller_vacations.company_id = 66 
ORDER BY 
  wk_seller_vacations.req_id asc

Query time 0.00130

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2122.59"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "1887.90"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "wk_seller_vacations",
            "access_type": "ALL",
            "rows_examined_per_scan": 434,
            "rows_produced_per_join": 4,
            "filtered": "1.00",
            "cost_info": {
              "read_cost": "43.72",
              "eval_cost": "0.43",
              "prefix_cost": "44.15",
              "data_read_per_join": "173"
            },
            "used_columns": [
              "req_id",
              "company_id",
              "from",
              "to",
              "add_to_cart",
              "display_return_date",
              "status"
            ],
            "attached_condition": "((`goimagine`.`wk_seller_vacations`.`company_id` = 66) and (`goimagine`.`wk_seller_vacations`.`status` = 'A'))"
          }
        },
        {
          "table": {
            "table_name": "wk_seller_vacations_description",
            "access_type": "ALL",
            "rows_examined_per_scan": 435,
            "rows_produced_per_join": 1887,
            "filtered": "100.00",
            "using_join_buffer": "hash join",
            "cost_info": {
              "read_cost": "1.75",
              "eval_cost": "188.79",
              "prefix_cost": "234.69",
              "data_read_per_join": "5M"
            },
            "used_columns": [
              "id",
              "req_id",
              "for_admin",
              "for_store",
              "lang_code"
            ],
            "attached_condition": "<if>(is_not_null_compl(wk_seller_vacations_description), ((`goimagine`.`wk_seller_vacations_description`.`req_id` = `goimagine`.`wk_seller_vacations`.`req_id`) and (`goimagine`.`wk_seller_vacations_description`.`lang_code` = 'en')), true)"
          }
        }
      ]
    }
  }
}