<?php 

$query = db_rewrite_sql('SELECT n.nid, n.body FROM {node} n WHERE nid > 1');
$result = db_query($query);

while ($node = db_fetch_array($result)) {

db_query("insert into node_comment_statistics (nid) values(".$node['nid'].")");

_comment_update_node_statistics($node['nid']);

echo $node['nid']."\n";

}
?>