车上的max是什么意思

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select * from tbl_Articles WHERE ArticleID=3277498 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3277498 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3277498 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(902482,2958559,1031074,3419638,3326845,1027336,676545,833047,1918109,1503487,1088269,1054755,565276,366391,2116534,2429401,749746,1387247,2607585,755975,940921,3490829,585472,1173526,1837439,2164202,1833016,412152,2489176,385741) ORDER BY field (ArticleID,902482,2958559,1031074,3419638,3326845,1027336,676545,833047,1918109,1503487,1088269,1054755,565276,366391,2116534,2429401,749746,1387247,2607585,755975,940921,3490829,585472,1173526,1837439,2164202,1833016,412152,2489176,385741)