spiral / components

            }

        }

        if ($behaviour & self::ALTER_COLUMNS) {

            foreach ($comparator->alteredColumns() as $pair) {

                /**

                 * @var AbstractColumn $initial

                 * @var AbstractColumn $current

                 */

                list($current, $initial) = $pair;

                $this->log('Altering column [{statement}] to [{new}] in table {table}.', [

                    'statement' => $initial->sqlStatement($this->driver),

                    'new'       => $current->sqlStatement($this->driver),

                    'table'     => $this->identify($table),

                ]);

                $this->alterColumn($table, $initial, $current);

            }

        }

        if ($behaviour & self::CREATE_INDEXES) {

            foreach ($comparator->addedIndexes() as $index) {

            }

        }

        if ($behaviour & self::ALTER_INDEXES) {

            foreach ($comparator->alteredIndexes() as $pair) {

                /**

                 * @var AbstractIndex $initial

                 * @var AbstractIndex $current

                 */

                list($current, $initial) = $pair;

                $this->log('Altering index [{statement}] to [{new}] in table {table}.', [

                    'statement' => $initial->sqlStatement($this->driver),

                    'new'       => $current->sqlStatement($this->driver),

                    'table'     => $this->identify($table),

                ]);

                $this->alterIndex($table, $initial, $current);

            }

        }

        if ($behaviour & self::CREATE_FOREIGNS) {

            foreach ($comparator->addedForeigns() as $foreign) {

            }

        }

        if ($behaviour & self::ALTER_FOREIGNS) {

            foreach ($comparator->alteredForeigns() as $pair) {

                /**

                 * @var AbstractReference $initial

                 * @var AbstractReference $current

                 */

                list($current, $initial) = $pair;

                $this->log('Altering foreign key [{statement}] to [{new}] in {table}.', [

                    'statement' => $initial->sqlStatement($this->driver),

                    'table'     => $this->identify($table),

                ]);

                $this->alterForeign($table, $initial, $current);

            }

        }

    }

    /**