/**
* Returns information about indexes on this collection
*
* @return array - This function returns an array in which each element
* describes an index. Elements will contain the values name for the
* name of the index, ns for the namespace (a combination of the
* database and collection name), and key for a list of all fields in
* the index and their ordering. Additional values may be present for
* special indexes, such as unique or sparse.
*/
public function getIndexInfo()
{
$indexes = $this->db->getIndexesCollection()->find(['ns' => $this->fqn]);
return iterator_to_array($indexes);
}
