SHOW FULL COLUMNS FROM `course` [ RunTime:0.020465s ]
SHOW FULL COLUMNS FROM `lesson` [ RunTime:0.021070s ]
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` = 592 LIMIT 1 [ RunTime:0.019612s ]
SHOW FULL COLUMNS FROM `level` [ RunTime:0.021151s ]
SELECT * FROM `level` WHERE `id` = 5 [ RunTime:0.019629s ]
SELECT `id`,`name`,`type`,`course_id`,`free` FROM `lesson` WHERE `status` = 1 AND `course_id` = 592 ORDER BY `sort`,`id` [ RunTime:0.020010s ]
SELECT * FROM `course` WHERE `cate_id` = 15 LIMIT 6 [ RunTime:0.019704s ]
