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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 (
    15744, 15745, 15746, 15743, 15738, 15739, 
    15740, 15741, 15742, 15736, 15737, 
    10455, 10456, 10454, 10453, 10452, 
    10451, 10450, 10449, 10448, 10447, 
    12691, 12692, 12693, 12694, 12695, 
    12696, 12697, 12698, 12699, 10206, 
    10209, 10216, 10203, 10204, 10205, 
    10207, 10208, 10210, 10211, 10212, 
    10213, 10214, 10215, 10217, 10218, 
    10219, 10220, 10221, 10222
  ) 
  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 0.00039

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}