Re: Constraint Trigger's referenced_table

Richard Broersma Jr <rabroersma@yahoo.com> writes:
> So is the purpose of knowing the reference_table OID, is that it helps to generalize the logic of the CONSTRAINT
TRIGGERS?

No, the purpose is to support foreign-key triggers.  FK constraints are
implemented via cooperating triggers on the two tables, and each trigger
has to be able to look at the other table.

            regards, tom lane