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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 (
    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, 3821, 3822, 3823, 3824, 
    3825, 3826, 3827, 3828, 3829, 3830, 
    3831, 3832, 3778, 2103, 2104, 2105, 
    2106, 2107, 2108, 2109, 2110, 2111, 
    2112, 2113, 2114, 2115, 2116, 2117, 
    2118, 2119, 2120, 2121, 2122, 2123, 
    2124, 2125, 2126, 2127, 2128, 2129, 
    3752, 3753, 3754, 3755, 3756, 3757, 
    3758, 3759, 3760, 3761, 3762, 3763, 
    3764, 3765, 3766, 3767, 3768, 3769, 
    3770, 3771, 3772, 3773, 3774
  ) 
  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 0.00032

JSON explain

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