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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 (
    1637, 1638, 1639, 1640, 1641, 1642, 1643, 
    1644, 1645, 1646, 1647, 1648, 1649, 
    1650, 1651, 1652, 5326, 5327, 5328, 
    5329, 5330, 5331, 5332, 5333, 5334, 
    5335, 5336, 5337, 5338, 5339, 5340, 
    5341, 5342, 5343, 5344, 5345, 5346, 
    5347, 5348, 5349, 5350, 5351, 5352, 
    2832, 2833, 2834, 2835, 6417, 6418, 
    6419, 6420, 6421, 2823, 2824, 2825, 
    2826, 6408, 6409, 6410, 6411, 6412, 
    2827, 2828, 2829, 2830, 2831, 6413, 
    6414, 6415, 6416, 2928, 2929, 2930, 
    2931, 2932, 6513, 6514, 6515, 6516, 
    3032, 6609, 3028, 3029, 3030, 3031, 
    6605, 6606, 6607, 6608, 6610, 6611, 
    6612, 6613, 3024, 3025, 3026
  ) 
  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 0.00023

JSON explain

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