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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 (
    13314, 13316, 13315, 13317, 13318, 1654, 
    1655, 1656, 1657, 1658, 1659, 1660, 
    1661, 1662, 1663, 1664, 1665, 1666, 
    1667, 1668, 1669, 1670, 1671, 2220, 
    2221, 2222, 2223, 5353, 5354, 5355, 
    5356, 5357, 5358, 5359, 5360, 5361, 
    5362, 5363, 5364, 5365, 5366, 5367, 
    5368, 5369, 5370, 5820, 5821, 5822, 
    5823, 12916, 12921, 12956, 12958, 13014, 
    13028, 13040, 13052, 12960, 12974, 
    12988, 13000, 12926, 12942, 12876, 
    12896, 12900, 12909
  ) 
  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 0.00032

JSON explain

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