MySQL 9.4 Release Notes
A number of limitations and related issues that existed in earlier versions of NDB Cluster have been resolved in NDB 9.4. These are described briefly in the following list:
DEFAULT expressions. MySQL NDB Cluster 9.4.0 (and later) supports explicit default expressions for columns of
NDBtables, as described in Section 13.6, “Data Type Default Values”.This support applies only to tables existing in the MySQL server. Default column value expressions are visible only by using the MySQL server, and cannot be accessed by NDB API applications.