code: private function changeColumns(): void
  	{
  		$change = [];
  		foreach ($this->oldColumns as $name => $column) {
  			if ($this->columnExists($name)) {
  				$change[] = "[$name] $column";
  			}
  		}
  		if (!empty($change)) {
  			$this->connection->query("ALTER TABLE %table CHANGE " . implode(', CHANGE ', $change), $this->name);
  		}
  	}
docs: Zmeni nazvy sloupcu tabulky
  @throws QueryException