public static final function resetTableStructures()
    {
        //usunięcie struktrur z cache
        foreach (self::getAdapter()->tableList() as $tableName) {
            static::$_cache->remove('mmi-orm-structure-' . self::getAdapter()->getConfig()->name . '-' . $tableName);
        }
        //usunięcie lokalnie zapisanych struktur
        self::$_tableStructure = [];
        return true;
    }