Delete.php

<?php

namespace Drupal\Core\Database\Driver\pgsql;

use Drupal\Core\Database\Query\Delete as QueryDelete;

/**
 * PostgreSQL implementation of \Drupal\Core\Database\Query\Delete.
 */
class Delete extends QueryDelete {
    
    /**
     * {@inheritdoc}
     */
    public function execute() {
        $this->connection
            ->addSavepoint();
        try {
            $result = parent::execute();
        } catch (\Exception $e) {
            $this->connection
                ->rollbackSavepoint();
            throw $e;
        }
        $this->connection
            ->releaseSavepoint();
        return $result;
    }

}