How to add a fixed row to the bottom of the Google visualization table

I am currently creating a Google visualization table that contains a bunch of data with a summary row at the bottom. I get an array of data using ajax from a PHP file that looks something like this:

myarray = array(
    0 => array(
        'cols' => array(0 => array('v' => 'data', 'p' => 'data')),
        'rows' => array(0 => array('v' => 'data', 'p' => 'data'))
    )
);

When heading columns are clicked on the sorting of data that is cool, but also the sorting of rows, which is not cool. I looked all over the Internet, trying to find the best solution for this, but I still don't know.