[fw-db] Zend_Db::insertSelect() / INSERT INTO ... SELECT ?

Is there a method like this planned in Zend_Db?

Would be great, and isn't too hard. Something like

public function insertSelect($tableName, Zend_Db_Select $select, array
$fields = array()) {
$fieldString = '';
if (count($fields))
{
foreach($fields as $fieldKey => $field)
{
$fields[$fieldKey] = $this->quoteIdentifier($field);
}

$fieldString = ' (' . implode(',', $fields) . ')';
}

$query = "INSERT INTO ".$this->quoteIdentifier($tableName) .
$fieldString . " ";
$query .= $select;

$this->_db->query($query);
}

I have several places in my app that need an INSERT INTO ... SELECT
statement, right this is the only place where I haven't got database
independent code...

Bye,
Stephan