0.25中的2表示什么意思

页面:/news/view-422995/ | 耗时:0.4886 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=422995 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=422995 LIMIT 0,1
select * from tbl_Articles_sphinx where id=422995 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(596214,2961117,2555994,3259887,2248892,1789787,3367073,1452426,1745480,701756,3245376,630837,2260085,434284,647881,3454126,458873,520643,693341,2169942,438610,697547,1067650,1031973,964369,3376050,701069,389985,3190654,3428764) ORDER BY field (ArticleID,596214,2961117,2555994,3259887,2248892,1789787,3367073,1452426,1745480,701756,3245376,630837,2260085,434284,647881,3454126,458873,520643,693341,2169942,438610,697547,1067650,1031973,964369,3376050,701069,389985,3190654,3428764)