SELECT
cscart_product_prices.product_id,
MIN(
IF(
cscart_product_prices.percentage_discount = 0,
cscart_product_prices.price,
cscart_product_prices.price - (
cscart_product_prices.price * cscart_product_prices.percentage_discount
)/ 100
)
) AS price
FROM
cscart_product_prices
WHERE
cscart_product_prices.product_id IN (
12664, 12667, 12666, 12751, 2641, 2642,
2635, 2636, 12691, 12690, 12692, 2199,
2200, 2237, 12678, 3238, 3237, 12656,
13107, 12672, 12671, 11136, 2772, 11808
)
AND cscart_product_prices.lower_limit = 1
AND cscart_product_prices.usergroup_id IN (0, 1)
GROUP BY
cscart_product_prices.product_id