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 (
    3538, 3947, 3948, 3949, 3950, 3951, 3952, 
    3953, 3992, 3993, 3994, 3995, 3996, 
    3997, 3998, 4052, 4053, 4054, 4055, 
    4056, 4057, 4058, 4135, 4136
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00038

JSON explain

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