双解双树是什么

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select * from tbl_Articles_data WHERE ArticleID=1132237 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1132237 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1103905,1109262,1128004,1275474,1124971,1112240,1111154,1057483,1112510,1102869,1110972,1117351,1106064,1108536,1118436,1122839,1119508,1108393,1123154,1129809,1048068,1109619,1132327,1128345,1112452,1043770,1103650,1131575,1124267,1125333) ORDER BY field (ArticleID,1103905,1109262,1128004,1275474,1124971,1112240,1111154,1057483,1112510,1102869,1110972,1117351,1106064,1108536,1118436,1122839,1119508,1108393,1123154,1129809,1048068,1109619,1132327,1128345,1112452,1043770,1103650,1131575,1124267,1125333)