SHOW FULL COLUMNS FROM `tp_course_category` [ RunTime:0.001339s ]
SELECT `id`,`name`,`icon` FROM `tp_course_category` WHERE `merchant_id` = 0 AND `is_nav` = 1 AND `status` = 1 ORDER BY `sort` ASC,`id` ASC LIMIT 8 [ RunTime:0.000411s ]
SHOW FULL COLUMNS FROM `tp_course` [ RunTime:0.001280s ]
SELECT `id`,`title`,`subtitle`,`cover`,`price`,`market_price`,`price_negotiable`,`price_unit`,`course_type`,`age_groups`,`category_id`,`merchant_id`,`teacher_ids`,`view_count` FROM `tp_course` WHERE `status` = 2 AND `delete_time` IS NULL ORDER BY `is_recommend` DESC,`is_top` DESC,`sort` DESC,`id` DESC LIMIT 6 [ RunTime:0.000423s ]
SHOW FULL COLUMNS FROM `tp_merchant` [ RunTime:0.001166s ]
SELECT `short_name`,`name`,`id` FROM `tp_merchant` WHERE `id` = 1 [ RunTime:0.000293s ]
SELECT `name`,`id` FROM `tp_course_category` WHERE `id` = 1 [ RunTime:0.000221s ]