grub源码分析文档，讲的很详细，值得一看，对你看grub有很大的好处-grub-source analysis of documents, said very detailed and worth a visit, look for your grub has considerable benefits
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001375s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.112307s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001124s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001956s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001254s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003655s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001061s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003270s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014496s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001319s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 157632 [ RunTime:0.001293s ]
