edlp_d8/core/lib/Drupal/Core/Database/Driver/pgsql/Merge.php

<?php

namespace Drupal\Core\Database\Driver\pgsql;

use Drupal\Core\Database\Query\Merge as QueryMerge;

/**
 * PostgreSQL implementation of \Drupal\Core\Database\Query\Merge.
 */
class Merge extends QueryMerge {}