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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 (
    6963, 6952, 6953, 3484, 3487, 3485, 3486, 
    6969, 3434, 6947, 3424, 3911, 3422, 
    3910, 3421, 3909, 3420, 3423, 3912, 
    3430, 3429, 3437, 3436, 3438, 6959, 
    3425, 6958, 6960, 6968, 6961, 6964, 
    6957, 6956, 6954, 6955, 3500, 3501, 
    3431, 6948, 3499, 3914, 3913, 3455, 
    3466, 3454, 3456, 3449, 3461
  ) 
  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"
  }
}