Есть запрос
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						select * from shop_product_props where prop_id in (559, 799)  | 
					
А нужно сгруппировать результат по товару, и получить его значения
Запрос должен быть следующим (Запрос занял 0.0118 сек.)
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						select product_id,  MAX(if(prop_id=559,value,NULL)) as brand,  MAX(if(prop_id=799,value,NULL)) as mark  from shop_product_props where prop_id in (559, 799) GROUP BY 1  | 
					
Еще вариант (Запрос занял 0.2479 сек.)
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						select     spp.product_id,     spp1.value as brand,     spp2.value as mark from (     select distinct product_id     from shop_product_props     where prop_id in (559, 799) ) as spp     left join shop_product_props as spp1 on spp.product_id = spp1.product_id and spp1.prop_id = 559     left join shop_product_props as spp2 on spp.product_id = spp2.product_id and spp2.prop_id = 799  | 
					

