How can I make a simple "SELECT *" with DB_QueryTool_Query

Hi all Im using DB_QueryTool_Query to make my sql strings, Ive make some experiments but one thing that I can't do is to put a simple "SELECT * FROM foo" , using $baa->setSelect('*'); dont work, I have achieved to do this with $baa->setSelect(' *') but I want to know if there is other less "tricky" way , more official to do it. Adding other fields to select that aren't '*' is easy. Thanks in advance and sorry for my bad english.