Mismatch between node queue table and node table causes Invalid argument supplied for foreach() in taxonomy.module 1241 error

I'm not sure how the tables got mismatched. It could happen during a backup restore or something... But in any case, during cron the dreaded Invalid argument supplied for foreach() in /.../taxonomy.module on line 1241 error appears because of this code:

/**
 * Implementation of hook_cron().
 */
function fuzzysearch_cron() {
  $query = db_query_range("SELECT nid FROM {fuzzysearch_index_queue}", 0, variable_get('fuzzysearch_index_cron', 150));
  while ($result = db_fetch_object($query)) {
    fuzzysearch_index($result->nid);
  }
}

If there are nid's returned by this query, and they are not present in the node table, non-existent nid's get sent to node_load, thus causing the error.

Replacing with this heavier function works, but it might be better if the else clause were compiled into a cleaner compound query to improve performance..

/**
 * Implementation of hook_cron().
 */
function fuzzysearch_cron() {
  //build a list of nodes in the node table
  $query = db_query("SELECT nid FROM {node}");  
  $nodes = array();
  while ($result = db_fetch_object($query)) {
    $nodes[] = $result->nid;
  }

  //run through queued nodes, eliminating those no longer in node table
  $query = db_query_range("SELECT nid FROM {fuzzysearch_index_queue}", 0, variable_get('fuzzysearch_index_cron', 150));
  while ($result = db_fetch_object($query)) {
    if(in_array($result->nid,$nodes)){
		fuzzysearch_index($result->nid);
	}else{
		db_query("DELETE FROM {fuzzysearch_index} WHERE nid = %d", $result->nid);
		db_query("DELETE FROM {fuzzysearch_index_queue} WHERE nid = %d", $result->nid);
	}
  }
}