Check if an Mview index is up-to-date

Mview.php

<?php

// Check if an Mview index is up-to-date
$connection = Mage::getSingleton('core/resource')->getConnection('core_read');
        $sub = $connection->select()->from(['cl' => $table], ['version_id'])->order('version_id DESC')->limit(1);
        $select = $connection->select()
            ->from(['m' => 'enterprise_mview_metadata'], ['version_id', 'latest_id' => $sub, 'status'])
            ->where('changelog_name = ?', $table)
            ->limit(1);
        $status = $connection->fetchRow($select);