$dbh->do('UPDATE last_picture_cache SET last_update=CURRENT_TIMESTAMP WHERE vhost=? AND event=?', undef, $r->get_server_name, $event)
or dberror($r, "Cache invalidation failed");
$dbh->do('UPDATE last_picture_cache SET last_update=CURRENT_TIMESTAMP WHERE vhost=? AND event=?', undef, $r->get_server_name, $event)
or dberror($r, "Cache invalidation failed");