From what I gathered from MySQL site and Dev blogs:
An important difference to note with the Foreign Key implementation in InnoDB is that MySQL Cluster does not support the updating of Primary Keys from within the Data Nodes themselves - instead the UPDATE is emulated with a DELETE followed by an INSERT operation. Therefore an UPDATE operation will return an error if the parent reference is using a Primary Key, unless using CASCADE action, in which case the delete operation will result in the corresponding rows in the child table being deleted. The Engineering team plans to change this behavior in a subsequent preview release.
- Foreign Keys in MySQL Cluster
- New MySQL Cluster 7.3 Previews
- MySQL Cluster 7.3 Labs Release – Foreign Keys Are In!
- Recent MySQL Cluster posts
Support for such operation is not yet confirmed.