I wrote this module a couple of years ago for a Drupal 5.x site that had to run several bulk updates on nodes tens of thousands of nodes and hundreds of thousands of comments. Drupal 5.x didn't yet have the nice bulk operations API that Drupal 6.x does, so I wrote this module to provide some pseudo-batch API functionality for performing the following operations: - Rebuild the node access table - Rebuild the node comment statistics table