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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 (
    3715, 3716, 3717, 3718, 3708, 3152, 25, 
    1365, 3138, 3149, 6719, 3146, 3150, 
    1345, 1346, 1347, 1348, 1349, 1350, 
    1351, 1352, 1353, 1354, 3698, 3699, 
    3700, 3701, 3702, 3703, 3704, 3705, 
    3706, 3707, 6723, 6717, 6720, 3151, 
    3864, 3145, 6721, 3863, 3148, 6718, 
    6722, 3144, 3147, 3096, 339
  ) 
  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 0.00031

JSON explain

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