UpdatedAtListProvider.php

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<?php
namespace Magento\Sales\Model\ResourceModel\Provider;

use Magento\Framework\App\ResourceConnection;
use Magento\Framework\DB\Adapter\AdapterInterface;

class UpdatedAtListProvider implements NotSyncedDataProviderInterface
{
    private $resourceConnection;

    private $connection;

    public function __construct(ResourceConnection $resourceConnection)
    {
        $this->connection = $resourceConnection->getConnection('sales');
        $this->resourceConnection = $resourceConnection;
    }

    public function getIds($mainTableName, $gridTableName)
    {
        $mainTableName = $this->resourceConnection->getTableName($mainTableName);
        $gridTableName = $this->resourceConnection->getTableName($gridTableName);
        $select = $this->connection->select()
            ->from($mainTableName, [$mainTableName . '.entity_id'])
            ->joinInner(
                [$gridTableName => $gridTableName],
                sprintf(
                    '%s.entity_id = %s.entity_id AND %s.updated_at > %s.updated_at',
                    $mainTableName,
                    $gridTableName,
                    $mainTableName,
                    $gridTableName
                ),
                []
            );

        return $this->connection->fetchAll($select, [], \Zend_Db::FETCH_COLUMN);
    }
}