/**
* Returns a reference to the key fields of this table. If the table has
*/
function &keys()
{
if (isset($this->table)) {
$keys =& $this->table->keys();
} else {
$keys = array();
foreach (array_keys($this->fields) as $key) {
if (strtolower($this->fields[$key]['Key']) == 'pri') {
$keys[$key] =& $this->fields[$key];
}
}
}
return $keys;
}
