SELECT 
  status 
FROM 
  cscart_menus 
WHERE 
  menu_id = 2

Query time 0.00023

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "0.90"
    },
    "table": {
      "table_name": "cscart_menus",
      "access_type": "ALL",
      "rows_examined_per_scan": 4,
      "rows_produced_per_join": 1,
      "filtered": "25.00",
      "cost_info": {
        "read_cost": "0.80",
        "eval_cost": "0.10",
        "prefix_cost": "0.90",
        "data_read_per_join": "16"
      },
      "used_columns": [
        "menu_id",
        "status"
      ],
      "attached_condition": "(`mobikul_delivery_boy_livedemo`.`cscart_menus`.`menu_id` = 2)"
    }
  }
}