SHOW FULL COLUMNS FROM `d_categories` [ RunTime:0.001222s ]
SELECT * FROM `d_categories` WHERE `parent_id` IS NULL ORDER BY `sort` ASC [ RunTime:0.000381s ]
SELECT * FROM `d_categories` WHERE `parent_id` = 1 ORDER BY `sort` ASC [ RunTime:0.000341s ]
SHOW FULL COLUMNS FROM `d_exhibitions` [ RunTime:0.001230s ]
SELECT `a`.*,`b`.*,b.name as bname,a.name as aname,a.id as aid FROM `d_exhibitions` `a` INNER JOIN `d_exhibition_halls` `b` ON `a`.`venue`=`b`.`id` WHERE ( JSON_CONTAINS(a.industry, '253') ) AND `b`.`country` LIKE '%中国%' AND `a`.`ex_status` = '1' [ RunTime:0.011562s ]
