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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 (
    6308, 6309, 6310, 6311, 6357, 6358, 6359, 
    6360, 6361, 6362, 6363, 6364, 6365, 
    6431, 6432, 6433, 6434, 6435, 6436, 
    6437, 6438, 6439, 6440, 6441, 6442, 
    6443, 6444, 6445, 6446, 6447, 6526, 
    6527, 6528, 6529, 6530, 6531, 6532, 
    6533, 6534, 6615, 6616, 6617, 6618, 
    6619, 6620, 6621, 6622, 2272
  ) 
  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"
  }
}