Implements hook_install().
function node_install() {
// Populate the node access table.
db_insert('node_access')
->fields(array(
'nid' => 0,
'gid' => 0,
'realm' => 'all',
'grant_view' => 1,
'grant_update' => 0,
'grant_delete' => 0,
))
->execute();
}