什么是成本倒挤法具体怎么计算

页面:/news/view-2712476/ | 耗时:0.6064 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=2712476 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2712476 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2712476 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1067027,1087893,1062062,1057076,1049836,1084083,1297501,1072268,1096993,1041283,1077525,1073698,1078717,1089450,1088870,1100667,1084249,1045655,1077080,1071607,1074290,1121170,1090310,1063981,1093513,1112919,1068258,1042765,1084777,1094825) ORDER BY field (ArticleID,1067027,1087893,1062062,1057076,1049836,1084083,1297501,1072268,1096993,1041283,1077525,1073698,1078717,1089450,1088870,1100667,1084249,1045655,1077080,1071607,1074290,1121170,1090310,1063981,1093513,1112919,1068258,1042765,1084777,1094825)