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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 (
    6688, 6689, 6694, 6702, 6706, 6708, 6726, 
    6725, 3103, 3097, 3113, 6687, 6699, 
    36, 37, 38, 39, 40, 41, 42, 83, 84, 85, 
    86, 87, 88, 89, 147, 148, 149, 150, 151, 
    152, 153, 168, 169, 170, 171, 172, 173, 
    174, 250, 251, 252, 253, 254, 255, 256, 
    304, 305, 306, 307, 308, 309, 3532, 3533, 
    3534, 3535, 3536, 3537, 3538, 3947, 
    3948, 3949, 3950, 3951, 3952, 3953, 
    3992, 3993, 3994, 3995, 3996, 3997, 
    3998, 4052, 4053, 4054, 4055, 4056, 
    4057, 4058, 4135, 4136, 4137, 4138, 
    4139, 4140, 4141, 4188, 4189, 4190, 
    4191, 4192, 4193, 4194
  ) 
  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 0.00044

JSON explain

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