Sandbox

SELECT 
  cscart_product_review_prepared_data.product_id AS product_id, 
  cscart_product_review_prepared_data.average_rating AS average_rating, 
  cscart_product_review_prepared_data.reviews_count AS reviews_count 
FROM 
  cscart_product_review_prepared_data 
WHERE 
  cscart_product_review_prepared_data.product_id IN (
    1504, 1494, 6209, 1499, 1489, 1433, 6614, 
    2268, 2269, 2270, 2271, 2336, 2337, 
    2338, 2339, 2412, 2413, 2414, 2415, 
    2416, 2417, 2418, 2419, 2420, 2514, 
    2515, 2516, 2517, 2518, 2604, 2605, 
    2606, 2607, 3840, 3841, 3842, 3843, 
    5867, 5868, 5869, 5870, 5871, 5935, 
    5936, 5937, 5938, 5939, 6012
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00025

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "Impossible WHERE noticed after reading const tables"
  }
}