The following bug has been logged on the website:
Bug reference: 6421
Logged by: Bartosz Dmytrak
Email address: bdmytrak@eranet.pl
PostgreSQL version: 9.1.2
Operating system: Mandriva 2011 64 bit
Description:=20=20=20=20=20=20=20=20
Cannot revoke column level privilages.
Scenario:
1. as =E2=80=9Epostgres=E2=80=9D user create a test table:
CREATE TABLE public."tblTest"
(
"RowId" serial NOT NULL,
"Column1" text,
"Column2" integer,
"Column3" integer,
CONSTRAINT "tblTest_pkey" PRIMARY KEY ("RowId")
)
WITH (
OIDS=3DFALSE
);
ALTER TABLE public."tblTest"
OWNER TO postgres;
GRANT ALL ON TABLE public."tblTest" TO postgres;
2. Grant privilages to different user, still using postgres acount:
GRANT UPDATE, INSERT, DELETE, REFERENCES, TRIGGER ON TABLE public."tblTest"
TO "otherUser";
GRANT SELECT ON TABLE public."tblTest" TO "otherUser" WITH GRANT OPTION;
3. Check privilages (assumption: there is the only one table named =E2=80=
=9CtblTest=E2=80=9D
in the database):
SELECT oid, relname, relacl FROM pg_class WHERE relname =3D 'tblTest';
oid | relname | relacl=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
-------+---------+--------------------------------------------------------
36385 | tblTest | {postgres=3DarwdDxt/postgres,otherUser=3Dar*wdxt/postgre=
s}
(1 row)
and also for columns:
SELECT attrelid, attname, attacl FROM pg_attribute a
INNER JOIN pg_class c ON (a.attrelid =3D c.oid)
WHERE c.relname =3D 'tblTest';
attrelid | attname | attacl=20
----------+----------+--------
36385 | tableoid |=20
36385 | cmax |=20
36385 | xmax |=20
36385 | cmin |=20
36385 | xmin |=20
36385 | ctid |=20
36385 | RowId |=20
36385 | Column1 |=20
36385 | Column2 |=20
36385 | Column3 |=20
(10 rows)
Everything looks good.
4. login as =E2=80=9CotherUser=E2=80=9D and add column level privilages
myDatabase=3D> GRANT ALL("Column1") ON public."tblTest" TO public;
GRANT
5. Check privilages again (as postgres)
myDatabase=3D# SELECT oid, relname, relacl FROM pg_class
WHERE relname =3D 'tblTest';
oid | relname | relacl=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
-------+---------+--------------------------------------------------------
36385 | tblTest | {postgres=3DarwdDxt/postgres,otherUser=3Dar*wdxt/postgre=
s}
(1 row)
myDatabase=3D# SELECT attrelid, attname, attacl FROM pg_attribute a
INNER JOIN pg_class c ON (a.attrelid =3D c.oid)
WHERE c.relname =3D 'tblTest';
attrelid | attname | attacl=20=20=20=20=20
----------+----------+----------------
36385 | tableoid |=20
36385 | cmax |=20
36385 | xmax |=20
36385 | cmin |=20
36385 | xmin |=20
36385 | ctid |=20
36385 | RowId |=20
36385 | Column1 | {=3Dr/otherUser}
36385 | Column2 |=20
36385 | Column3 |=20
(10 rows)
Still looks good.
6. REVOKE Column level privilages from public on table using =E2=80=9Cpostg=
res=E2=80=9D
account:
myDatabase=3D# REVOKE ALL("Column1") ON public."tblTest" FROM public;
REVOKE
7. Check column privilages (as postgres):
myDatabase=3D# SELECT attrelid, attname, attacl FROM pg_attribute a
INNER JOIN pg_class c ON (a.attrelid =3D c.oid)
WHERE c.relname =3D 'tblTest';
attrelid | attname | attacl=20=20=20=20=20
----------+----------+----------------
36385 | tableoid |=20
36385 | cmax |=20
36385 | xmax |=20
36385 | cmin |=20
36385 | xmin |=20
36385 | ctid |=20
36385 | RowId |=20
36385 | Column1 | {=3Dr/otherUser}
36385 | Column2 |=20
36385 | Column3 |=20
(10 rows)
or using \dp command:
myDatabase=3D# \dp public."tblTest"
Access privileges
Schema | Name | Type | Access privileges | Column access
privileges=20
--------+---------+-------+----------------------------+-------------------=
-------
public | tblTest | table | postgres=3DarwdDxt/postgres +| Column1:=20=20=
=20=20=20=20=20=20=20=20=20
+
| | | otherUser=3Dar*wdxt/postgres | =3Dr/otherUser
(1 row)
Looks like privilages has not been revoked.
regards,
Bartek
