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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 (
    2422, 2423, 2424, 2425, 2426, 2427, 2428, 
    2429, 2430, 2431, 2432, 2433, 2434, 
    2435, 2436, 2437, 2438, 2519, 2520, 
    2521, 2522, 2523, 2524, 2525, 2526, 
    2527, 2608, 2609, 2610, 2611, 2612, 
    2613, 2614, 2615, 2616, 5872, 5873, 
    5874, 5875, 5940, 5941, 5942, 5943, 
    5944, 5945, 5946, 5947, 5948
  ) 
  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 0.00042

JSON explain

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