DB_DataObject : prb with joinAdd since upgrade to 1.7.6

Something is wrong since I've updated my pear lib, I use joinAdd method and I get this notice : * Notice*: Undefined property: type in */usr/share/php/DB/DataObject.php* on line *2836* this line refere to this piece of code :

       $database_prefix = in_array($DB->type,array('mysql','mysqli')) ?
           $obj->_database . '.' : '';

I think it a change into PEAR::DB (I use laste stable version) which break DB_DataObject::joinAdd fonctuonality. The "type" attribut do not exists anymore in DB package. I hope this can help. best regards, -- Stéphane GULLY - http://www.zeitoun.net/