public function getRowCountsAndSizeByBlobName($forceCache = false)
    {
        $extraSelects = array("SUM(OCTET_LENGTH(value)) AS 'blob_size'", "SUM(LENGTH(name)) AS 'name_size'");
        $extraCols = array('blob_size', 'name_size');
        return $this->getRowCountsByArchiveName(
            $this->getAllBlobArchiveStatus(), 'getEstimatedBlobArchiveRowSize', $forceCache, $extraSelects,
            $extraCols);
    }