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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 (
    2096, 2097, 2098, 2099, 2100, 2101, 5722, 
    5723, 5724, 5725, 5726, 5727, 5728, 
    5729, 5730, 5731, 5732, 5733, 5734, 
    5735, 5736, 5737, 5738, 5739, 5740, 
    5741, 5742, 5743, 5744, 5745, 5746, 
    5747, 5748, 5749, 5750, 5751, 5752, 
    5753, 5754, 5755, 5756, 5757, 5758, 
    5759, 5760, 5761, 5762, 5763
  ) 
  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 0.00036

JSON explain

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