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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 (
    4011, 4012, 4066, 4067, 4068, 4069, 4070, 
    4071, 4072, 4073, 4074, 4075, 4076, 
    4077, 4078, 4079, 4110, 4111, 4112, 
    4113, 4114, 4115, 4116, 4149, 4150, 
    4151, 4152, 4153, 4154, 4155, 4202, 
    4203, 4204, 4205, 4206, 4207, 4208, 
    3109, 3123, 6671, 6676, 6684, 5, 6, 7, 
    8, 9, 10
  ) 
  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 0.00026

JSON explain

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