SELECT 
  option_type as type, 
  option_id 
FROM 
  cscart_product_options 
WHERE 
  option_id IN (264, 260, 271, 265, 266)

Query time 0.00049

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "3.51"
    },
    "table": {
      "table_name": "cscart_product_options",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "option_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 5,
      "rows_produced_per_join": 5,
      "filtered": "100.00",
      "index_condition": "(`cscartdb`.`cscart_product_options`.`option_id` in (264,260,271,265,266))",
      "cost_info": {
        "read_cost": "3.01",
        "eval_cost": "0.50",
        "prefix_cost": "3.51",
        "data_read_per_join": "11K"
      },
      "used_columns": [
        "option_id",
        "option_type"
      ]
    }
  }
}