SELECT * FROM k4_users WHERE user_id=49 GROUP BY user_id LIMIT 1

SELECT t.tag_name, COUNT(tt.tag_id) AS tag_count FROM k4_tags t, k4_thread_users tu JOIN k4_thread_tags tt USING (thread_id) WHERE t.tag_id=tt.tag_id AND tu.thread_id=tt.thread_id AND tu.user_id=49 GROUP BY t.tag_id ORDER BY tag_count DESC, t.tag_name ASC LIMIT 0,50

SELECT DISTINCT t.thread_id, t.*, ts.tag_name, GROUP_CONCAT(ts.tag_name SEPARATOR ',') AS tags, u.name AS user_name, uu.name AS edit_user_name FROM k4_thread_tags tt, k4_tags ts, k4_threads t, k4_users u, k4_users uu WHERE t.user_id=49 AND t.thread_id=tt.thread_id AND ts.tag_id=tt.tag_id AND t.user_id=u.user_id AND t.edit_user_id=uu.user_id GROUP BY t.thread_id ORDER BY created DESC LIMIT 10

SELECT wp.*, u.name AS poster_name FROM k4_wall_posts wp LEFT JOIN k4_users u ON wp.poster_id=u.user_id WHERE wp.user_id=49 AND (wp.private < 1 OR wp.private=1 AND wp.poster_id=1) GROUP BY wp.post_id ORDER BY created DESC LIMIT 10