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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 (
    1206, 1384, 1389, 1393, 1404, 1403, 1402, 
    1401, 1398, 1400, 1394, 1399, 1397, 
    1396, 1395, 1340, 1337, 1338, 1339, 
    1347, 1390, 1342, 1341, 1016, 1381, 
    25, 1392, 1391, 1166, 1388, 1380, 1330, 
    1387, 1386, 1385, 1383, 1382, 1369, 
    1379, 1378, 1377, 1376, 1375, 1374, 
    1373, 1372, 1371, 1370
  ) 
  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 0.00064

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}