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SELECT 
  cscart_ult_product_prices.product_id, 
  MIN(
    IF(
      cscart_ult_product_prices.percentage_discount = 0, 
      cscart_ult_product_prices.price, 
      cscart_ult_product_prices.price - (
        cscart_ult_product_prices.price * cscart_ult_product_prices.percentage_discount
      )/ 100
    )
  ) AS price 
FROM 
  cscart_ult_product_prices 
WHERE 
  cscart_ult_product_prices.product_id IN (
    4204, 4205, 4206, 4207, 4208, 3109, 3123, 
    6671, 6676, 6684, 5, 6, 7, 8, 9, 10, 11, 
    57, 58, 59, 60, 61, 62, 63, 111, 112, 113, 
    114, 115, 116, 117, 210, 211, 212, 213, 
    214, 215, 216, 217, 218, 219, 220, 221, 
    222, 223, 278, 279, 280
  ) 
  AND cscart_ult_product_prices.lower_limit = 1 
  AND cscart_ult_product_prices.company_id = 1 
  AND cscart_ult_product_prices.usergroup_id IN (0, 0, 1) 
GROUP BY 
  cscart_ult_product_prices.product_id

Query time 0.00035

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}