SHOW FULL COLUMNS FROM `course` [ RunTime:0.058741s ]
SHOW FULL COLUMNS FROM `lesson` [ RunTime:0.057953s ]
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` = 644 LIMIT 1 [ RunTime:0.056926s ]
SHOW FULL COLUMNS FROM `level` [ RunTime:0.057886s ]
SELECT * FROM `level` WHERE `id` = 6 [ RunTime:0.056831s ]
SELECT `id`,`name`,`type`,`course_id`,`free` FROM `lesson` WHERE `status` = 1 AND `course_id` = 644 ORDER BY `sort`,`id` [ RunTime:0.056680s ]
SELECT * FROM `course` WHERE `cate_id` = 23 LIMIT 6 [ RunTime:0.057146s ]
