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
NDBtables, similar to how these are supported by theInnoDBstorage engine.NoteUnlike the case with user-partitioned
InnoDBtables, foreign keys are supported forNDBtables that are partitioned byKEYorLINEAR KEY.Section 1.7.3.2, “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 Section 13.1.17.5, “Using FOREIGN KEY Constraints”.