四个优先是指什么

页面:/news/view-1113516/ | 耗时:0.5628 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=1113516 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1113516 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1113516 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1125377,1103670,1103518,1111282,980999,1131195,1131789,1103753,1111430,1061836,1116825,1103766,1125303,1104457,1110652,1092044,1128935,1108924,1127629,1114118,1129311,1110822,1128409,1124001,1118969,1128779,1128265,1123403,1104653,1103101) ORDER BY field (ArticleID,1125377,1103670,1103518,1111282,980999,1131195,1131789,1103753,1111430,1061836,1116825,1103766,1125303,1104457,1110652,1092044,1128935,1108924,1127629,1114118,1129311,1110822,1128409,1124001,1118969,1128779,1128265,1123403,1104653,1103101)