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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 (
    2412, 2413, 2414, 2415, 2416, 2417, 2418, 
    2419, 2420, 2514, 2515, 2516, 2517, 
    2518, 2604, 2605, 2606, 2607, 3840, 
    3841, 3842, 3843, 5867, 5868, 5869, 
    5870, 5871, 5935, 5936, 5937, 5938, 
    5939, 6012, 6013, 6014, 6015, 6016, 
    6017, 6018, 6019, 6020, 6196, 6197, 
    6198, 6199, 6200, 6732, 2836, 2837, 
    2838, 2839, 2840, 6422, 6423, 6424, 
    6425, 2937, 2938, 2939, 2940, 2941, 
    6522, 6523, 6524, 6525, 1516, 2189, 
    2190, 2191, 2192, 2193, 2194, 2195, 
    2196, 2197, 2720, 2721, 2722, 2723, 
    2769, 2770, 2771, 2772, 2773, 2774, 
    2775, 2776, 2777, 2845, 2846, 2847, 
    2848, 2849, 2850, 2851, 2852
  ) 
  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 0.00027

JSON explain

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