SELECT 
  category_id, 
  parent_id 
FROM 
  cscart_categories 
WHERE 
  parent_id IN(
    565, 589, 590, 466, 587, 622, 386, 453, 
    1052, 409, 408, 471, 711, 410, 529, 463
  )

Query time 0.00041

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_categories",
          "access_type": "range",
          "possible_keys": ["parent"],
          "key": "parent",
          "key_length": "3",
          "used_key_parts": ["parent_id"],
          "rows": 18,
          "filtered": 100,
          "index_condition": "cscart_categories.parent_id in (565,589,590,466,587,622,386,453,1052,409,408,471,711,410,529,463)"
        }
      }
    ]
  }
}