Giuseppe Sacco (eppesuigoccas(at)libero(dot)it) reports a bug with a severity of 3
The lower the number the more severe it is.
bug in 7.0.3 related to triggers and field rename
I probably found a bug in PostgreSQL 7.0.3 running on Debian GNU/Linux potato. Kernel 2.2.19.
The problem is that I created a foreign key from table two to table one. After that I renamed the field target of the relation (on table one) expecting PostgreSQL to raise an error since the field is a target. Otherwise I espected an automatic change of the foreign key relation.
Instead PostgreSQL accept the field rename but then (of course) the foreign key trigger gives an error.
elmer3=# create table one (id int4 not null primary key);
NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'one_pkey' for table 'one'
elmer3=# create table two (one int4 not null);
elmer3=# alter table two add foreign key(one) references one;
NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
elmer3=# alter table one rename id to newid;
elmer3=# insert into one values (4);
INSERT 79419 1
elmer3=# insert into two values (5);
ERROR: constraint <unnamed>: table one does not have an attribute id
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