Problem With Backup database with several table

[eluser]pengenbelajarCI[/eluser]
Hi, I'm using dbutil() to backup the database.

Code:

$this->load->dbutil();    
$prefs = array(
     'tables' => array('products','spesifications'),
     'format'      => 'zip'
);
$backup =& $this->dbutil->backup($prefs);

But even i declare that only 2 tables are backup, but it give all the table. And also, the file is on zip format, which make 'format' parameter on $prefs is work, but on on 'tables' parameter.

Anybody had an idea why this is happen?

[eluser]pengenbelajarCI[/eluser]
I try to change the format to txt, and now it work. Just 2 table is dumped.

But i still need the output file to be compressed

[eluser]pengenbelajarCI[/eluser]
Sorry, I've solved this..the problem is not on the dbutil...but my code after it ...