WordPress database error: [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 meta.meta_value = 'feed' AND post.post_type IN ('page','post')' at line 3]SELECT post.* FROM wp_posts AS post
INNER JOIN wp_postmeta AS meta ON (post.ID = meta.post_id)
WHERE meta.meta_key IN () AND meta.meta_value = 'feed' AND post.post_type IN ('page','post')
