图乘法的应用条件是什么啊

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select * from tbl_Articles WHERE ArticleID=206037 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=206037 LIMIT 0,1
select * from tbl_Articles_sphinx where id=206037 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1080663,1119464,1061744,156284,1113790,1047767,1049174,1073076,1096993,1112824,1106136,1097069,1121170,1073399,1053404,3449156,1057674,1110858,1075881,1077525,1086480,1066704,1057028,1086902,1049836,1049170,1070650,1097097,1106994,1072314) ORDER BY field (ArticleID,1080663,1119464,1061744,156284,1113790,1047767,1049174,1073076,1096993,1112824,1106136,1097069,1121170,1073399,1053404,3449156,1057674,1110858,1075881,1077525,1086480,1066704,1057028,1086902,1049836,1049170,1070650,1097097,1106994,1072314)