A number of limitations and related issues that existed in earlier versions of NDB Cluster have been resolved in NDB Cluster 7.3. These are described briefly in the following list:
Support for foreign keys. Foreign key constraints are now supported for
NDB
tables, similar to how these are supported by theInnoDB
storage engine.NoteUnlike the case with user-partitioned
InnoDB
tables, foreign keys are supported forNDB
tables that are partitioned byKEY
orLINEAR KEY
.FOREIGN KEY Constraints, provides more information about foreign key support in MySQL. For more information about the syntax supported by MySQL for foreign keys, see FOREIGN KEY Constraints.