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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 (
    2849, 2850, 2851, 2852, 2853, 2854, 2855, 
    2856, 2857, 2858, 2859, 2860, 2861, 
    2862, 2942, 2943, 2944, 2945, 2946, 
    2947, 2948, 2949, 2950, 3037, 3038, 
    3039, 3040, 3041, 3042, 3043, 3044, 
    3045, 3853, 5790, 5791, 5792, 5793, 
    5794, 5795, 5796, 5797, 5798, 6307, 
    6308, 6309, 6310, 6311, 6357, 6358, 
    6359, 6360, 6361, 6362, 6363, 6364, 
    6365, 6431, 6432, 6433, 6434, 6435, 
    6436, 6437, 6438, 6439, 6440, 6441, 
    6442, 6443, 6444, 6445, 6446, 6447, 
    6526, 6527, 6528, 6529, 6530, 6531, 
    6532, 6533, 6534, 6615, 6616, 6617, 
    6618, 6619, 6620, 6621, 6622, 2272, 
    2273, 2274, 2275, 2276, 2340
  ) 
  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 0.00028

JSON explain

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