ModifyTable.php

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<?php
namespace Magento\Framework\Setup\Declaration\Schema\Operations;

use Magento\Framework\Setup\Declaration\Schema\Db\DbSchemaWriterInterface;
use Magento\Framework\Setup\Declaration\Schema\Db\DefinitionAggregator;
use Magento\Framework\Setup\Declaration\Schema\Dto\Column;
use Magento\Framework\Setup\Declaration\Schema\Dto\Table;
use Magento\Framework\Setup\Declaration\Schema\ElementHistory;
use Magento\Framework\Setup\Declaration\Schema\OperationInterface;

class ModifyTable implements OperationInterface
{
    const OPERATION_NAME = 'modify_table';

    private $dbSchemaWriter;

    public function __construct(DbSchemaWriterInterface $dbSchemaWriter)
    {
        $this->dbSchemaWriter = $dbSchemaWriter;
    }

    public function getOperationName()
    {
        return self::OPERATION_NAME;
    }

    public function isOperationDestructive()
    {
        return false;
    }

    public function doOperation(ElementHistory $elementHistory)
    {
        $table = $elementHistory->getNew();
        $oldTable = $elementHistory->getOld();
        $oldOptions = $oldTable->getDiffSensitiveParams();
        $statements = [];

        foreach ($table->getDiffSensitiveParams() as $optionName => $optionValue) {
            if ($oldOptions[$optionName] !== $optionValue) {
                $statements[] = $this->dbSchemaWriter->modifyTableOption(
                    $table->getName(),
                    $table->getResource(),
                    $optionName,
                    $optionValue
                );
            }
        }

        return $statements;
    }
}