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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 (
    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, 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
  ) 
  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 0.00029

JSON explain

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