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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 (
    2179, 2180, 2181, 2182, 2183, 2184, 3779, 
    3780, 3781, 3782, 3783, 3784, 3785, 
    3786, 3787, 3788, 3789, 3790, 3791, 
    3792, 3793, 3794, 3795, 3796, 3797, 
    3798, 3799, 3800, 3801, 3802, 3803, 
    3804, 3805, 3806, 3807, 3808, 3809, 
    3810, 3811, 3812, 3813, 3814, 3815, 
    3816, 3817, 3818, 3819, 3820
  ) 
  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 0.00022

JSON explain

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