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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 (
    5388, 5389, 5390, 5391, 5392, 5393, 5394, 
    5395, 5396, 5397, 5398, 5399, 5400, 
    5401, 5402, 5403, 5404, 5405, 5406, 
    5407, 5408, 5409, 5410, 5411, 5412, 
    5413, 5414, 6728, 515, 3156, 3676, 5131, 
    3834, 3833, 2130, 2131, 2132, 2133, 
    2134, 2135, 2136, 2137, 2138, 2139, 
    2140, 2141, 2142, 2143
  ) 
  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 0.00047

JSON explain

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