public function getChangeColumnDDL($fromColumn, $toColumn)
    {
        $pattern = "
ALTER TABLE %s CHANGE %s %s;
";

        return sprintf($pattern,
            $this->quoteIdentifier($fromColumn->getTable()->getName()),
            $this->quoteIdentifier($fromColumn->getName()),
            $this->getColumnDDL($toColumn)
        );
    }