$f[] = array_shift($v);

function db_all($q)
{
        if (function_exists('pg_fetch_all_columns')) {
                return pg_fetch_all_columns(q($q));
        }

        if (!($r = pg_fetch_all(q($q)))) {
                return array();
        }
        $f = array();
        foreach ($r as $v) {
                $f[] = array_shift($v);
        }
        return $f;
}