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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 (
    1624, 1625, 5299, 5300, 5301, 5302, 5303, 
    5304, 5305, 5306, 5307, 5308, 5309, 
    5310, 5311, 5312, 5313, 5314, 5315, 
    5316, 5317, 5318, 5319, 5320, 5321, 
    5322, 5323, 5324, 5325, 1627, 1628, 
    1629, 1630, 1631, 1632, 1633, 1634, 
    1635, 1636, 1637, 1638, 1639, 1640, 
    1641, 1642, 1643, 1644, 1645
  ) 
  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 0.00024

JSON explain

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