Re: FW: BUG in trigger and foreign keys - Mailing list pgsql-general

"Jefim Matskin" <JefimM@sphera.com> writes:
> If try it with the same  script - but without the constraints - you will see the difference.
> And there should not be any since the data is the same in the tables.

No, it's not the same.  Consider the implications of the constraint
you added:

ALTER TABLE reseller ADD CONSTRAINT FK_reseller_parent
FOREIGN KEY (parent_id) REFERENCES reseller(reseller_id)
ON DELETE CASCADE ON UPDATE CASCADE;
^^^^^^^^^^^^^^^^^

This will cause the delete of reseller_id 1338 to propagate to the rows
in which 1338 appears as parent_id.  Which sure looks to me like it's
the behavior you're complaining of.

            regards, tom lane