请解释RV是什么意思

页面:/news/view-131056/ | 耗时:0.9866 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=131056 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=131056 LIMIT 0,1
select * from tbl_Articles_sphinx where id=131056 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1068734,1052549,1604244,1082928,1298900,1092712,1115087,2761506,1496365,1594529,1095508,1069083,1608737,2644343,1084873,1131827,1314321,2692556,2663223,1102222,1069505,1072921,1066438,1128505,1598636,1080997,2515961,1102710,1099175,2783036) ORDER BY field (ArticleID,1068734,1052549,1604244,1082928,1298900,1092712,1115087,2761506,1496365,1594529,1095508,1069083,1608737,2644343,1084873,1131827,1314321,2692556,2663223,1102222,1069505,1072921,1066438,1128505,1598636,1080997,2515961,1102710,1099175,2783036)