什么叫查重

页面:/news/view-219671/ | 耗时:1.0215 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=219671 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=219671 LIMIT 0,1
select * from tbl_Articles_sphinx where id=219671 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1073407,1071243,1073588,990830,1053404,1078983,1084873,1065449,1090196,1070330,1070428,1070939,1080997,994629,1130246,1065107,1052807,1083419,1079277,1063463,1066872,2893193,1075907,1066498,1072290,1062580,1087439,1089684,1066526,1052073) ORDER BY field (ArticleID,1073407,1071243,1073588,990830,1053404,1078983,1084873,1065449,1090196,1070330,1070428,1070939,1080997,994629,1130246,1065107,1052807,1083419,1079277,1063463,1066872,2893193,1075907,1066498,1072290,1062580,1087439,1089684,1066526,1052073)