$sql='SELECT DISTINCT(n.nid), n.title, n.type, n.changed, n.uid, u.name, l.last_comment_timestamp AS last_post, l.comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {users} u ON n.uid = u.uid LEFT JOIN {comments} c ON n.nid = c.nid AND (c.status = %d OR c.status IS NULL) WHERE n.status = 1 AND (n.uid = %d OR c.uid = %d) ORDER BY last_post DESC';