Implements hook_update_index().
function node_update_index() {
$limit = (int) variable_get('search_cron_limit', 100);
$result = db_query_range("SELECT n.nid FROM {node} n LEFT JOIN {search_dataset} d ON d.type = 'node' AND d.sid = n.nid WHERE d.sid IS NULL OR d.reindex <> 0 ORDER BY d.reindex ASC, n.nid ASC", 0, $limit, array(), array(
'target' => 'slave',
));
foreach ($result as $node) {
_node_index_node($node);
}
}