DbMerger logic fails to fix invalid complex FKs
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Key: CAY-1099
URL: https://issues.apache.org/cayenne/browse/CAY-1099
Project: Cayenne
Issue Type: Bug
Components: Cayenne Core Library
Affects Versions: 3.0
Environment: 3.0 M4, Derby
Reporter: Scott Anderson
Assignee: Andrus Adamchik
The merger tries to do the following:
ALTER TABLE mail ADD FOREIGN KEY (sentto) REFERENCES account (id)
Which fails with the error:
Foreign Key 'SQL080826163049030' is invalid because 'The table cannot be
defined as a dependent of table APP.ACCOUNT because of delete rule
restrictions. (The relationship causes the table to be delete-connected to the
indicated table through multiple relationships and the delete rule of the
existing relationship is SET NULL.). '.
mail has a 'sentto' and 'sentfrom' field, in the style of REFERENCES account
(id) ON DELETE SET NULL
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