atk4\data\Persistence_SQL::setLimitOrder PHP Method

    protected function setLimitOrder($m, $q)
    {
        if ($m->limit && ($m->limit[0] || $m->limit[1])) {
            if ($m->limit[0] === null) {
                // This is max number which is allowed in MySQL server.
                // But be aware, that PDO will downgrade this number even lower probably because
                // in LIMIT it expects numeric value and converts string (we set float values as PDO_PARAM_STR)
                // back to PDO_PARAM_INT which is goes back to max int value specific server can have.
                // On my Win10,64-bit it is 2147483647, on Travis server 9223372036854775807 etc.
                $m->limit[0] = '18446744073709551615';
            }
            $q->limit($m->limit[0], $m->limit[1]);
        }
        if ($m->order) {
            foreach ($m->order as $o) {
                $q->order($m->getElement($o[0]), $o[1]);
            }
        }
    }