SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    47613, 49164, 47024, 37096, 27357, 5612, 
    2963, 3917, 2131, 26912, 796, 4857, 
    46160, 2044, 47353, 48239, 49151
  )

Query time 0.00103

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_products",
          "access_type": "range",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "rows": 17,
          "filtered": 100,
          "index_condition": "cscart_products.product_id in (47613,49164,47024,37096,27357,5612,2963,3917,2131,26912,796,4857,46160,2044,47353,48239,49151)"
        }
      }
    ]
  }
}