什么叫作二次调整法

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select * from tbl_Articles WHERE ArticleID=1936921 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1936921 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1936921 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1056514,1062959,1064977,1074177,1275335,1066438,1067017,1005452,1045471,1068973,1045659,1074340,1089550,1119560,1062138,1083164,1085318,1081441,1089078,156284,1072028,1052549,1067769,1078797,1077080,1083341,1079546,1052943,1070308,1065485) ORDER BY field (ArticleID,1056514,1062959,1064977,1074177,1275335,1066438,1067017,1005452,1045471,1068973,1045659,1074340,1089550,1119560,1062138,1083164,1085318,1081441,1089078,156284,1072028,1052549,1067769,1078797,1077080,1083341,1079546,1052943,1070308,1065485)