SHOW FULL COLUMNS FROM `course` [ RunTime:0.021834s ]
SHOW FULL COLUMNS FROM `lesson` [ RunTime:0.022304s ]
SELECT *,(SELECT COUNT(*) AS think_count FROM `lesson` `count_table` WHERE `status` = 1 AND ( `count_table`.`course_id` =course.id ) ORDER BY `sort`,`id`) AS `lesson_count` FROM `course` WHERE `id` = 878 LIMIT 1 [ RunTime:0.021584s ]
SHOW FULL COLUMNS FROM `level` [ RunTime:0.021876s ]
SELECT * FROM `level` WHERE `id` = 4 [ RunTime:0.020919s ]
SELECT `id`,`name`,`type`,`course_id`,`free` FROM `lesson` WHERE `status` = 1 AND `course_id` = 878 ORDER BY `sort`,`id` [ RunTime:0.021252s ]
SELECT * FROM `course` WHERE `cate_id` = 33 LIMIT 6 [ RunTime:0.021490s ]
