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 (
    5414, 6728, 515, 3156, 3676, 5131, 3834, 
    3833, 2130, 2131, 2132, 2133, 2134, 
    2135, 2136, 2137, 2138, 2139, 2140, 
    2141, 2142, 2143, 2144, 2145
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00023

JSON explain

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