如何将wordpress用户表中的display\\u名称添加到此查询中以获取帮助
SELECT a.post_title, b.meta_key, b.meta_value as level, c.meta_value as intro
FROM wp_posts a
LEFT JOIN wp_postmeta b ON a.ID = b.post_id
LEFT JOIN wp_postmeta c ON a.ID = c.post_id
WHERE b.meta_key = \'level\'
AND c.meta_key = \'_post_main_intro\'