MAX会影响查询的其他列吗？

Question

SELECT  WorkerId, MAX(  `TimeStamp` ) AS TimeStamp,  `Latitude` ,  `Longitude`
FROM  `workers_actions` 
JOIN worker_user w ON WorkerId = w.Id
WHERE  `ScannedTimestamp` >= DATE( NOW( ) ) 
        AND FarmerId=:farmer_id
        AND Longitude is not null 
        AND Longitude != 0 
        AND Latitude is not null 
        AND Latitude != 0 
GROUP BY WorkerId

我是否会获得具有最大时间戳的行的Latitude和Longitude，或者它是否不是garaunteed？