Discuz! Database Error

(1064) You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'where prov=310000' at line 1

select * from home_hospinfo right join home_fekeshi on home_hospinfo.id=home_fekeshi.hopid and home_fekeshi.ksid in where prov=310000

PHP Debug

No.	File	Line	Code
1	forum.php	268	require(%s)
2	source/module/forum/forum_docinqu.php	67	discuz_database::fetch_all(%s)
3	source/class/discuz/discuz_database.php	100	discuz_database::query(%s, Array, false, false)
4	source/class/discuz/discuz_database.php	136	db_driver_mysql->query(%s, false, false)
5	source/class/db/db_driver_mysql.php	153	db_driver_mysql->halt(%s, %d, %s)
6	source/class/db/db_driver_mysql.php	224	break()