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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 (
    6009, 6010, 6011, 6192, 6193, 6194, 6195, 
    2595, 2596, 2597, 2598, 6187, 6188, 
    6189, 6190, 2730, 2731, 2732, 2733, 
    2734, 6318, 6319, 6320, 6321, 2726, 
    2727, 2728, 2729, 6313, 6314, 6315, 
    6316, 6317, 1573, 1574, 1575, 1576, 
    1577, 1578, 1579, 1580, 1581, 1582, 
    1583, 1584, 1585, 1586, 1587, 1588, 
    1589, 1590, 1591, 1592, 1593, 1594, 
    1595, 1596, 1597, 1598, 5272, 5273, 
    5274, 5275, 5276, 5277, 5278, 5279, 
    5280, 5281, 5282, 5283, 5284, 5285, 
    5286, 5287, 5288, 5289, 5290, 5291, 
    5292, 5293, 5294, 5295, 5296, 5297, 
    5298, 1546, 1547, 1548, 1549, 1550, 
    1551, 1552, 1553, 1554, 1555
  ) 
  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"
  }
}