WordPress数据库错误: [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 ') and wtt.taxonomy='category'' at line 1] select wtr.term_taxonomy_id, wtr.object_id from wp_term_relationships wtr join wp_term_taxonomy wtt on wtr.term_taxonomy_id=wtt.term_taxonomy_id where wtr.object_id in () and wtt.taxonomy='category'