Restrictions on foreign keys. Support for foreign key constraints in MySQL Cluster NDB 7.3 is
comparable to that provided by InnoDB, subject to the following restrictions:
• ON UPDATE CASCADE is not supported when the reference is to the parent table's primary key.
• SET DEFAULT is not supported. (Also not supported by InnoDB.)
• The NO ACTION keywords are accepted but treated as RESCRICT. (Also the same as with
For more information, see Section 18.104.22.168, “Using FOREIGN KEY Constraints”, and
Section 22.214.171.124, “FOREIGN KEY Constraints”.
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