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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 (
    6208, 3033, 3034, 3035, 3036, 3857, 3858, 
    3859, 3860, 2715, 2716, 2717, 2718, 
    2719, 6303, 6304, 6305, 6306, 1500, 
    1501, 1502, 1503, 3726, 5206, 5207, 
    5208, 5209, 6736, 1490, 1491, 1492, 
    1493, 3724, 5198, 5199, 5200, 5201, 
    6735, 1495, 1496, 1497, 1498, 3164, 
    3725, 5202, 5203, 5204, 5205, 1485, 
    1486, 1487, 1488, 3163, 3723, 5194, 
    5195, 5196, 5197, 1429, 1430, 1431, 
    1432, 3161, 3719, 3720, 5142, 5143, 
    5144, 6730, 6731, 3158, 3159, 3160, 
    2102, 2039, 1985, 1472, 1484, 5613, 
    1428, 1478, 1466, 1873, 1460, 1449, 
    3743, 1454, 1444, 1422, 1765, 3734, 
    1418, 3136, 2040, 2041, 2042
  ) 
  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 0.00046

JSON explain

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