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postgresql/src/test/regress/expected/rowsecurity.out
Tom Lane 8e7537261c Suppress less info in regression tests using DROP CASCADE. 
DROP CASCADE doesn't currently promise to visit dependent objects in
a fixed order, so when the regression tests use it, we typically need
to suppress the details of which objects get dropped in order to have
predictable test output.  Traditionally we've done that by setting
client_min_messages higher than NOTICE, but there's a better way:
we can "\set VERBOSITY terse" in psql.  That suppresses the DETAIL
message with the object list, but we still get the basic notice telling
how many objects were dropped.  So at least the test case can verify
that the expected number of objects were dropped.

The VERBOSITY method was already in use in a few places, but run
around and use it wherever it makes sense.

Discussion: https://postgr.es/m/10766.1501608885@sss.pgh.pa.us
2017-08-01 16:49:23 -04:00

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--
-- Test of Row-level security feature
--
-- Clean up in case a prior regression run failed
-- Suppress NOTICE messages when users/groups don't exist
SET client_min_messages TO 'warning';
DROP USER IF EXISTS regress_rls_alice;
DROP USER IF EXISTS regress_rls_bob;
DROP USER IF EXISTS regress_rls_carol;
DROP USER IF EXISTS regress_rls_dave;
DROP USER IF EXISTS regress_rls_exempt_user;
DROP ROLE IF EXISTS regress_rls_group1;
DROP ROLE IF EXISTS regress_rls_group2;
DROP SCHEMA IF EXISTS regress_rls_schema CASCADE;
RESET client_min_messages;
-- initial setup
CREATE USER regress_rls_alice NOLOGIN;
CREATE USER regress_rls_bob NOLOGIN;
CREATE USER regress_rls_carol NOLOGIN;
CREATE USER regress_rls_dave NOLOGIN;
CREATE USER regress_rls_exempt_user BYPASSRLS NOLOGIN;
CREATE ROLE regress_rls_group1 NOLOGIN;
CREATE ROLE regress_rls_group2 NOLOGIN;
GRANT regress_rls_group1 TO regress_rls_bob;
GRANT regress_rls_group2 TO regress_rls_carol;
CREATE SCHEMA regress_rls_schema;
GRANT ALL ON SCHEMA regress_rls_schema to public;
SET search_path = regress_rls_schema;
-- setup of malicious function
CREATE OR REPLACE FUNCTION f_leak(text) RETURNS bool
COST 0.0000001 LANGUAGE plpgsql
AS 'BEGIN RAISE NOTICE ''f_leak => %'', $1; RETURN true; END';
GRANT EXECUTE ON FUNCTION f_leak(text) TO public;
-- BASIC Row-Level Security Scenario
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE uaccount (
pguser name primary key,
seclv int
);
GRANT SELECT ON uaccount TO public;
INSERT INTO uaccount VALUES
('regress_rls_alice', 99),
('regress_rls_bob', 1),
('regress_rls_carol', 2),
('regress_rls_dave', 3);
CREATE TABLE category (
cid int primary key,
cname text
);
GRANT ALL ON category TO public;
INSERT INTO category VALUES
(11, 'novel'),
(22, 'science fiction'),
(33, 'technology'),
(44, 'manga');
CREATE TABLE document (
did int primary key,
cid int references category(cid),
dlevel int not null,
dauthor name,
dtitle text
);
GRANT ALL ON document TO public;
INSERT INTO document VALUES
( 1, 11, 1, 'regress_rls_bob', 'my first novel'),
( 2, 11, 2, 'regress_rls_bob', 'my second novel'),
( 3, 22, 2, 'regress_rls_bob', 'my science fiction'),
( 4, 44, 1, 'regress_rls_bob', 'my first manga'),
( 5, 44, 2, 'regress_rls_bob', 'my second manga'),
( 6, 22, 1, 'regress_rls_carol', 'great science fiction'),
( 7, 33, 2, 'regress_rls_carol', 'great technology book'),
( 8, 44, 1, 'regress_rls_carol', 'great manga'),
( 9, 22, 1, 'regress_rls_dave', 'awesome science fiction'),
(10, 33, 2, 'regress_rls_dave', 'awesome technology book');
ALTER TABLE document ENABLE ROW LEVEL SECURITY;
-- user's security level must be higher than or equal to document's
CREATE POLICY p1 ON document AS PERMISSIVE
USING (dlevel <= (SELECT seclv FROM uaccount WHERE pguser = current_user));
-- try to create a policy of bogus type
CREATE POLICY p1 ON document AS UGLY
USING (dlevel <= (SELECT seclv FROM uaccount WHERE pguser = current_user));
ERROR: unrecognized row security option "ugly"
LINE 1: CREATE POLICY p1 ON document AS UGLY
^
HINT: Only PERMISSIVE or RESTRICTIVE policies are supported currently.
-- but Dave isn't allowed to anything at cid 50 or above
-- this is to make sure that we sort the policies by name first
-- when applying WITH CHECK, a later INSERT by Dave should fail due
-- to p1r first
CREATE POLICY p2r ON document AS RESTRICTIVE TO regress_rls_dave
USING (cid <> 44 AND cid < 50);
-- and Dave isn't allowed to see manga documents
CREATE POLICY p1r ON document AS RESTRICTIVE TO regress_rls_dave
USING (cid <> 44);
\dp
Access privileges
Schema | Name | Type | Access privileges | Column privileges | Policies
--------------------+----------+-------+---------------------------------------------+-------------------+--------------------------------------------
regress_rls_schema | category | table | regress_rls_alice=arwdDxt/regress_rls_alice+| |
| | | =arwdDxt/regress_rls_alice | |
regress_rls_schema | document | table | regress_rls_alice=arwdDxt/regress_rls_alice+| | p1: +
| | | =arwdDxt/regress_rls_alice | | (u): (dlevel <= ( SELECT uaccount.seclv +
| | | | | FROM uaccount +
| | | | | WHERE (uaccount.pguser = CURRENT_USER)))+
| | | | | p2r (RESTRICTIVE): +
| | | | | (u): ((cid <> 44) AND (cid < 50)) +
| | | | | to: regress_rls_dave +
| | | | | p1r (RESTRICTIVE): +
| | | | | (u): (cid <> 44) +
| | | | | to: regress_rls_dave
regress_rls_schema | uaccount | table | regress_rls_alice=arwdDxt/regress_rls_alice+| |
| | | =r/regress_rls_alice | |
(3 rows)
\d document
Table "regress_rls_schema.document"
Column | Type | Collation | Nullable | Default
---------+---------+-----------+----------+---------
did | integer | | not null |
cid | integer | | |
dlevel | integer | | not null |
dauthor | name | | |
dtitle | text | | |
Indexes:
"document_pkey" PRIMARY KEY, btree (did)
Foreign-key constraints:
"document_cid_fkey" FOREIGN KEY (cid) REFERENCES category(cid)
Policies:
POLICY "p1"
USING ((dlevel <= ( SELECT uaccount.seclv
FROM uaccount
WHERE (uaccount.pguser = CURRENT_USER))))
POLICY "p1r" AS RESTRICTIVE
TO regress_rls_dave
USING ((cid <> 44))
POLICY "p2r" AS RESTRICTIVE
TO regress_rls_dave
USING (((cid <> 44) AND (cid < 50)))
SELECT * FROM pg_policies WHERE schemaname = 'regress_rls_schema' AND tablename = 'document' ORDER BY policyname;
schemaname | tablename | policyname | permissive | roles | cmd | qual | with_check
--------------------+-----------+------------+-------------+--------------------+-----+--------------------------------------------+------------
regress_rls_schema | document | p1 | PERMISSIVE | {public} | ALL | (dlevel <= ( SELECT uaccount.seclv +|
| | | | | | FROM uaccount +|
| | | | | | WHERE (uaccount.pguser = CURRENT_USER))) |
regress_rls_schema | document | p1r | RESTRICTIVE | {regress_rls_dave} | ALL | (cid <> 44) |
regress_rls_schema | document | p2r | RESTRICTIVE | {regress_rls_dave} | ALL | ((cid <> 44) AND (cid < 50)) |
(3 rows)
-- viewpoint from regress_rls_bob
SET SESSION AUTHORIZATION regress_rls_bob;
SET row_security TO ON;
SELECT * FROM document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my first manga
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great manga
NOTICE: f_leak => awesome science fiction
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
4 | 44 | 1 | regress_rls_bob | my first manga
6 | 22 | 1 | regress_rls_carol | great science fiction
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
(5 rows)
SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my first manga
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great manga
NOTICE: f_leak => awesome science fiction
cid | did | dlevel | dauthor | dtitle | cname
-----+-----+--------+-------------------+-------------------------+-----------------
11 | 1 | 1 | regress_rls_bob | my first novel | novel
44 | 4 | 1 | regress_rls_bob | my first manga | manga
22 | 6 | 1 | regress_rls_carol | great science fiction | science fiction
44 | 8 | 1 | regress_rls_carol | great manga | manga
22 | 9 | 1 | regress_rls_dave | awesome science fiction | science fiction
(5 rows)
-- try a sampled version
SELECT * FROM document TABLESAMPLE BERNOULLI(50) REPEATABLE(0)
WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first manga
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great manga
NOTICE: f_leak => awesome science fiction
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
4 | 44 | 1 | regress_rls_bob | my first manga
6 | 22 | 1 | regress_rls_carol | great science fiction
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
(4 rows)
-- viewpoint from regress_rls_carol
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => my science fiction
NOTICE: f_leak => my first manga
NOTICE: f_leak => my second manga
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great technology book
NOTICE: f_leak => great manga
NOTICE: f_leak => awesome science fiction
NOTICE: f_leak => awesome technology book
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 22 | 2 | regress_rls_bob | my science fiction
4 | 44 | 1 | regress_rls_bob | my first manga
5 | 44 | 2 | regress_rls_bob | my second manga
6 | 22 | 1 | regress_rls_carol | great science fiction
7 | 33 | 2 | regress_rls_carol | great technology book
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
10 | 33 | 2 | regress_rls_dave | awesome technology book
(10 rows)
SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => my science fiction
NOTICE: f_leak => my first manga
NOTICE: f_leak => my second manga
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great technology book
NOTICE: f_leak => great manga
NOTICE: f_leak => awesome science fiction
NOTICE: f_leak => awesome technology book
cid | did | dlevel | dauthor | dtitle | cname
-----+-----+--------+-------------------+-------------------------+-----------------
11 | 1 | 1 | regress_rls_bob | my first novel | novel
11 | 2 | 2 | regress_rls_bob | my second novel | novel
22 | 3 | 2 | regress_rls_bob | my science fiction | science fiction
44 | 4 | 1 | regress_rls_bob | my first manga | manga
44 | 5 | 2 | regress_rls_bob | my second manga | manga
22 | 6 | 1 | regress_rls_carol | great science fiction | science fiction
33 | 7 | 2 | regress_rls_carol | great technology book | technology
44 | 8 | 1 | regress_rls_carol | great manga | manga
22 | 9 | 1 | regress_rls_dave | awesome science fiction | science fiction
33 | 10 | 2 | regress_rls_dave | awesome technology book | technology
(10 rows)
-- try a sampled version
SELECT * FROM document TABLESAMPLE BERNOULLI(50) REPEATABLE(0)
WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first manga
NOTICE: f_leak => my second manga
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great manga
NOTICE: f_leak => awesome science fiction
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
4 | 44 | 1 | regress_rls_bob | my first manga
5 | 44 | 2 | regress_rls_bob | my second manga
6 | 22 | 1 | regress_rls_carol | great science fiction
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
(5 rows)
EXPLAIN (COSTS OFF) SELECT * FROM document WHERE f_leak(dtitle);
QUERY PLAN
----------------------------------------------------
Seq Scan on document
Filter: ((dlevel <= $0) AND f_leak(dtitle))
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
(5 rows)
EXPLAIN (COSTS OFF) SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle);
QUERY PLAN
-----------------------------------------------------------
Hash Join
Hash Cond: (category.cid = document.cid)
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
-> Seq Scan on category
-> Hash
-> Seq Scan on document
Filter: ((dlevel <= $0) AND f_leak(dtitle))
(9 rows)
-- viewpoint from regress_rls_dave
SET SESSION AUTHORIZATION regress_rls_dave;
SELECT * FROM document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => my science fiction
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great technology book
NOTICE: f_leak => awesome science fiction
NOTICE: f_leak => awesome technology book
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 22 | 2 | regress_rls_bob | my science fiction
6 | 22 | 1 | regress_rls_carol | great science fiction
7 | 33 | 2 | regress_rls_carol | great technology book
9 | 22 | 1 | regress_rls_dave | awesome science fiction
10 | 33 | 2 | regress_rls_dave | awesome technology book
(7 rows)
SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => my science fiction
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great technology book
NOTICE: f_leak => awesome science fiction
NOTICE: f_leak => awesome technology book
cid | did | dlevel | dauthor | dtitle | cname
-----+-----+--------+-------------------+-------------------------+-----------------
11 | 1 | 1 | regress_rls_bob | my first novel | novel
11 | 2 | 2 | regress_rls_bob | my second novel | novel
22 | 3 | 2 | regress_rls_bob | my science fiction | science fiction
22 | 6 | 1 | regress_rls_carol | great science fiction | science fiction
33 | 7 | 2 | regress_rls_carol | great technology book | technology
22 | 9 | 1 | regress_rls_dave | awesome science fiction | science fiction
33 | 10 | 2 | regress_rls_dave | awesome technology book | technology
(7 rows)
EXPLAIN (COSTS OFF) SELECT * FROM document WHERE f_leak(dtitle);
QUERY PLAN
----------------------------------------------------------------------------------------------
Seq Scan on document
Filter: ((cid <> 44) AND (cid <> 44) AND (cid < 50) AND (dlevel <= $0) AND f_leak(dtitle))
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
(5 rows)
EXPLAIN (COSTS OFF) SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle);
QUERY PLAN
----------------------------------------------------------------------------------------------------------
Hash Join
Hash Cond: (category.cid = document.cid)
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
-> Seq Scan on category
-> Hash
-> Seq Scan on document
Filter: ((cid <> 44) AND (cid <> 44) AND (cid < 50) AND (dlevel <= $0) AND f_leak(dtitle))
(9 rows)
-- 44 would technically fail for both p2r and p1r, but we should get an error
-- back from p1r for this because it sorts first
INSERT INTO document VALUES (100, 44, 1, 'regress_rls_dave', 'testing sorting of policies'); -- fail
ERROR: new row violates row-level security policy "p1r" for table "document"
-- Just to see a p2r error
INSERT INTO document VALUES (100, 55, 1, 'regress_rls_dave', 'testing sorting of policies'); -- fail
ERROR: new row violates row-level security policy "p2r" for table "document"
-- only owner can change policies
ALTER POLICY p1 ON document USING (true); --fail
ERROR: must be owner of relation document
DROP POLICY p1 ON document; --fail
ERROR: must be owner of relation document
SET SESSION AUTHORIZATION regress_rls_alice;
ALTER POLICY p1 ON document USING (dauthor = current_user);
-- viewpoint from regress_rls_bob again
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => my science fiction
NOTICE: f_leak => my first manga
NOTICE: f_leak => my second manga
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-----------------+--------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 22 | 2 | regress_rls_bob | my science fiction
4 | 44 | 1 | regress_rls_bob | my first manga
5 | 44 | 2 | regress_rls_bob | my second manga
(5 rows)
SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle) ORDER by did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => my science fiction
NOTICE: f_leak => my first manga
NOTICE: f_leak => my second manga
cid | did | dlevel | dauthor | dtitle | cname
-----+-----+--------+-----------------+--------------------+-----------------
11 | 1 | 1 | regress_rls_bob | my first novel | novel
11 | 2 | 2 | regress_rls_bob | my second novel | novel
22 | 3 | 2 | regress_rls_bob | my science fiction | science fiction
44 | 4 | 1 | regress_rls_bob | my first manga | manga
44 | 5 | 2 | regress_rls_bob | my second manga | manga
(5 rows)
-- viewpoint from rls_regres_carol again
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great technology book
NOTICE: f_leak => great manga
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------
6 | 22 | 1 | regress_rls_carol | great science fiction
7 | 33 | 2 | regress_rls_carol | great technology book
8 | 44 | 1 | regress_rls_carol | great manga
(3 rows)
SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle) ORDER by did;
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great technology book
NOTICE: f_leak => great manga
cid | did | dlevel | dauthor | dtitle | cname
-----+-----+--------+-------------------+-----------------------+-----------------
22 | 6 | 1 | regress_rls_carol | great science fiction | science fiction
33 | 7 | 2 | regress_rls_carol | great technology book | technology
44 | 8 | 1 | regress_rls_carol | great manga | manga
(3 rows)
EXPLAIN (COSTS OFF) SELECT * FROM document WHERE f_leak(dtitle);
QUERY PLAN
---------------------------------------------------------
Seq Scan on document
Filter: ((dauthor = CURRENT_USER) AND f_leak(dtitle))
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM document NATURAL JOIN category WHERE f_leak(dtitle);
QUERY PLAN
---------------------------------------------------------------
Nested Loop
-> Seq Scan on document
Filter: ((dauthor = CURRENT_USER) AND f_leak(dtitle))
-> Index Scan using category_pkey on category
Index Cond: (cid = document.cid)
(5 rows)
-- interaction of FK/PK constraints
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE POLICY p2 ON category
USING (CASE WHEN current_user = 'regress_rls_bob' THEN cid IN (11, 33)
WHEN current_user = 'regress_rls_carol' THEN cid IN (22, 44)
ELSE false END);
ALTER TABLE category ENABLE ROW LEVEL SECURITY;
-- cannot delete PK referenced by invisible FK
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM document d FULL OUTER JOIN category c on d.cid = c.cid ORDER BY d.did, c.cid;
did | cid | dlevel | dauthor | dtitle | cid | cname
-----+-----+--------+-----------------+--------------------+-----+------------
1 | 11 | 1 | regress_rls_bob | my first novel | 11 | novel
2 | 11 | 2 | regress_rls_bob | my second novel | 11 | novel
3 | 22 | 2 | regress_rls_bob | my science fiction | |
4 | 44 | 1 | regress_rls_bob | my first manga | |
5 | 44 | 2 | regress_rls_bob | my second manga | |
| | | | | 33 | technology
(6 rows)
DELETE FROM category WHERE cid = 33; -- fails with FK violation
ERROR: update or delete on table "category" violates foreign key constraint "document_cid_fkey" on table "document"
DETAIL: Key is still referenced from table "document".
-- can insert FK referencing invisible PK
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM document d FULL OUTER JOIN category c on d.cid = c.cid ORDER BY d.did, c.cid;
did | cid | dlevel | dauthor | dtitle | cid | cname
-----+-----+--------+-------------------+-----------------------+-----+-----------------
6 | 22 | 1 | regress_rls_carol | great science fiction | 22 | science fiction
7 | 33 | 2 | regress_rls_carol | great technology book | |
8 | 44 | 1 | regress_rls_carol | great manga | 44 | manga
(3 rows)
INSERT INTO document VALUES (11, 33, 1, current_user, 'hoge');
-- UNIQUE or PRIMARY KEY constraint violation DOES reveal presence of row
SET SESSION AUTHORIZATION regress_rls_bob;
INSERT INTO document VALUES (8, 44, 1, 'regress_rls_bob', 'my third manga'); -- Must fail with unique violation, revealing presence of did we can't see
ERROR: duplicate key value violates unique constraint "document_pkey"
SELECT * FROM document WHERE did = 8; -- and confirm we can't see it
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+---------+--------
(0 rows)
-- RLS policies are checked before constraints
INSERT INTO document VALUES (8, 44, 1, 'regress_rls_carol', 'my third manga'); -- Should fail with RLS check violation, not duplicate key violation
ERROR: new row violates row-level security policy for table "document"
UPDATE document SET did = 8, dauthor = 'regress_rls_carol' WHERE did = 5; -- Should fail with RLS check violation, not duplicate key violation
ERROR: new row violates row-level security policy for table "document"
-- database superuser does bypass RLS policy when enabled
RESET SESSION AUTHORIZATION;
SET row_security TO ON;
SELECT * FROM document;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 22 | 2 | regress_rls_bob | my science fiction
4 | 44 | 1 | regress_rls_bob | my first manga
5 | 44 | 2 | regress_rls_bob | my second manga
6 | 22 | 1 | regress_rls_carol | great science fiction
7 | 33 | 2 | regress_rls_carol | great technology book
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
10 | 33 | 2 | regress_rls_dave | awesome technology book
11 | 33 | 1 | regress_rls_carol | hoge
(11 rows)
SELECT * FROM category;
cid | cname
-----+-----------------
11 | novel
22 | science fiction
33 | technology
44 | manga
(4 rows)
-- database superuser does bypass RLS policy when disabled
RESET SESSION AUTHORIZATION;
SET row_security TO OFF;
SELECT * FROM document;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 22 | 2 | regress_rls_bob | my science fiction
4 | 44 | 1 | regress_rls_bob | my first manga
5 | 44 | 2 | regress_rls_bob | my second manga
6 | 22 | 1 | regress_rls_carol | great science fiction
7 | 33 | 2 | regress_rls_carol | great technology book
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
10 | 33 | 2 | regress_rls_dave | awesome technology book
11 | 33 | 1 | regress_rls_carol | hoge
(11 rows)
SELECT * FROM category;
cid | cname
-----+-----------------
11 | novel
22 | science fiction
33 | technology
44 | manga
(4 rows)
-- database non-superuser with bypass privilege can bypass RLS policy when disabled
SET SESSION AUTHORIZATION regress_rls_exempt_user;
SET row_security TO OFF;
SELECT * FROM document;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 22 | 2 | regress_rls_bob | my science fiction
4 | 44 | 1 | regress_rls_bob | my first manga
5 | 44 | 2 | regress_rls_bob | my second manga
6 | 22 | 1 | regress_rls_carol | great science fiction
7 | 33 | 2 | regress_rls_carol | great technology book
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
10 | 33 | 2 | regress_rls_dave | awesome technology book
11 | 33 | 1 | regress_rls_carol | hoge
(11 rows)
SELECT * FROM category;
cid | cname
-----+-----------------
11 | novel
22 | science fiction
33 | technology
44 | manga
(4 rows)
-- RLS policy does not apply to table owner when RLS enabled.
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security TO ON;
SELECT * FROM document;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 22 | 2 | regress_rls_bob | my science fiction
4 | 44 | 1 | regress_rls_bob | my first manga
5 | 44 | 2 | regress_rls_bob | my second manga
6 | 22 | 1 | regress_rls_carol | great science fiction
7 | 33 | 2 | regress_rls_carol | great technology book
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
10 | 33 | 2 | regress_rls_dave | awesome technology book
11 | 33 | 1 | regress_rls_carol | hoge
(11 rows)
SELECT * FROM category;
cid | cname
-----+-----------------
11 | novel
22 | science fiction
33 | technology
44 | manga
(4 rows)
-- RLS policy does not apply to table owner when RLS disabled.
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security TO OFF;
SELECT * FROM document;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 22 | 2 | regress_rls_bob | my science fiction
4 | 44 | 1 | regress_rls_bob | my first manga
5 | 44 | 2 | regress_rls_bob | my second manga
6 | 22 | 1 | regress_rls_carol | great science fiction
7 | 33 | 2 | regress_rls_carol | great technology book
8 | 44 | 1 | regress_rls_carol | great manga
9 | 22 | 1 | regress_rls_dave | awesome science fiction
10 | 33 | 2 | regress_rls_dave | awesome technology book
11 | 33 | 1 | regress_rls_carol | hoge
(11 rows)
SELECT * FROM category;
cid | cname
-----+-----------------
11 | novel
22 | science fiction
33 | technology
44 | manga
(4 rows)
--
-- Table inheritance and RLS policy
--
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security TO ON;
CREATE TABLE t1 (a int, junk1 text, b text) WITH OIDS;
ALTER TABLE t1 DROP COLUMN junk1; -- just a disturbing factor
GRANT ALL ON t1 TO public;
COPY t1 FROM stdin WITH (oids);
CREATE TABLE t2 (c float) INHERITS (t1);
GRANT ALL ON t2 TO public;
COPY t2 FROM stdin WITH (oids);
CREATE TABLE t3 (c text, b text, a int) WITH OIDS;
ALTER TABLE t3 INHERIT t1;
GRANT ALL ON t3 TO public;
COPY t3(a,b,c) FROM stdin WITH (oids);
CREATE POLICY p1 ON t1 FOR ALL TO PUBLIC USING (a % 2 = 0); -- be even number
CREATE POLICY p2 ON t2 FOR ALL TO PUBLIC USING (a % 2 = 1); -- be odd number
ALTER TABLE t1 ENABLE ROW LEVEL SECURITY;
ALTER TABLE t2 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM t1;
a | b
---+-----
2 | bbb
4 | dad
2 | bcd
4 | def
2 | yyy
(5 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1;
QUERY PLAN
-------------------------------
Append
-> Seq Scan on t1
Filter: ((a % 2) = 0)
-> Seq Scan on t2
Filter: ((a % 2) = 0)
-> Seq Scan on t3
Filter: ((a % 2) = 0)
(7 rows)
SELECT * FROM t1 WHERE f_leak(b);
NOTICE: f_leak => bbb
NOTICE: f_leak => dad
NOTICE: f_leak => bcd
NOTICE: f_leak => def
NOTICE: f_leak => yyy
a | b
---+-----
2 | bbb
4 | dad
2 | bcd
4 | def
2 | yyy
(5 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------
Append
-> Seq Scan on t1
Filter: (((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2
Filter: (((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t3
Filter: (((a % 2) = 0) AND f_leak(b))
(7 rows)
-- reference to system column
SELECT oid, * FROM t1;
oid | a | b
-----+---+-----
102 | 2 | bbb
104 | 4 | dad
202 | 2 | bcd
204 | 4 | def
302 | 2 | yyy
(5 rows)
EXPLAIN (COSTS OFF) SELECT *, t1 FROM t1;
QUERY PLAN
-------------------------------
Append
-> Seq Scan on t1
Filter: ((a % 2) = 0)
-> Seq Scan on t2
Filter: ((a % 2) = 0)
-> Seq Scan on t3
Filter: ((a % 2) = 0)
(7 rows)
-- reference to whole-row reference
SELECT *, t1 FROM t1;
a | b | t1
---+-----+---------
2 | bbb | (2,bbb)
4 | dad | (4,dad)
2 | bcd | (2,bcd)
4 | def | (4,def)
2 | yyy | (2,yyy)
(5 rows)
EXPLAIN (COSTS OFF) SELECT *, t1 FROM t1;
QUERY PLAN
-------------------------------
Append
-> Seq Scan on t1
Filter: ((a % 2) = 0)
-> Seq Scan on t2
Filter: ((a % 2) = 0)
-> Seq Scan on t3
Filter: ((a % 2) = 0)
(7 rows)
-- for share/update lock
SELECT * FROM t1 FOR SHARE;
a | b
---+-----
2 | bbb
4 | dad
2 | bcd
4 | def
2 | yyy
(5 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1 FOR SHARE;
QUERY PLAN
-------------------------------------
LockRows
-> Append
-> Seq Scan on t1
Filter: ((a % 2) = 0)
-> Seq Scan on t2
Filter: ((a % 2) = 0)
-> Seq Scan on t3
Filter: ((a % 2) = 0)
(8 rows)
SELECT * FROM t1 WHERE f_leak(b) FOR SHARE;
NOTICE: f_leak => bbb
NOTICE: f_leak => dad
NOTICE: f_leak => bcd
NOTICE: f_leak => def
NOTICE: f_leak => yyy
a | b
---+-----
2 | bbb
4 | dad
2 | bcd
4 | def
2 | yyy
(5 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1 WHERE f_leak(b) FOR SHARE;
QUERY PLAN
-----------------------------------------------------
LockRows
-> Append
-> Seq Scan on t1
Filter: (((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2
Filter: (((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t3
Filter: (((a % 2) = 0) AND f_leak(b))
(8 rows)
-- union all query
SELECT a, b, oid FROM t2 UNION ALL SELECT a, b, oid FROM t3;
a | b | oid
---+-----+-----
1 | abc | 201
3 | cde | 203
1 | xxx | 301
2 | yyy | 302
3 | zzz | 303
(5 rows)
EXPLAIN (COSTS OFF) SELECT a, b, oid FROM t2 UNION ALL SELECT a, b, oid FROM t3;
QUERY PLAN
-------------------------------
Append
-> Seq Scan on t2
Filter: ((a % 2) = 1)
-> Seq Scan on t3
(4 rows)
-- superuser is allowed to bypass RLS checks
RESET SESSION AUTHORIZATION;
SET row_security TO OFF;
SELECT * FROM t1 WHERE f_leak(b);
NOTICE: f_leak => aba
NOTICE: f_leak => bbb
NOTICE: f_leak => ccc
NOTICE: f_leak => dad
NOTICE: f_leak => abc
NOTICE: f_leak => bcd
NOTICE: f_leak => cde
NOTICE: f_leak => def
NOTICE: f_leak => xxx
NOTICE: f_leak => yyy
NOTICE: f_leak => zzz
a | b
---+-----
1 | aba
2 | bbb
3 | ccc
4 | dad
1 | abc
2 | bcd
3 | cde
4 | def
1 | xxx
2 | yyy
3 | zzz
(11 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1 WHERE f_leak(b);
QUERY PLAN
---------------------------
Append
-> Seq Scan on t1
Filter: f_leak(b)
-> Seq Scan on t2
Filter: f_leak(b)
-> Seq Scan on t3
Filter: f_leak(b)
(7 rows)
-- non-superuser with bypass privilege can bypass RLS policy when disabled
SET SESSION AUTHORIZATION regress_rls_exempt_user;
SET row_security TO OFF;
SELECT * FROM t1 WHERE f_leak(b);
NOTICE: f_leak => aba
NOTICE: f_leak => bbb
NOTICE: f_leak => ccc
NOTICE: f_leak => dad
NOTICE: f_leak => abc
NOTICE: f_leak => bcd
NOTICE: f_leak => cde
NOTICE: f_leak => def
NOTICE: f_leak => xxx
NOTICE: f_leak => yyy
NOTICE: f_leak => zzz
a | b
---+-----
1 | aba
2 | bbb
3 | ccc
4 | dad
1 | abc
2 | bcd
3 | cde
4 | def
1 | xxx
2 | yyy
3 | zzz
(11 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1 WHERE f_leak(b);
QUERY PLAN
---------------------------
Append
-> Seq Scan on t1
Filter: f_leak(b)
-> Seq Scan on t2
Filter: f_leak(b)
-> Seq Scan on t3
Filter: f_leak(b)
(7 rows)
--
-- Partitioned Tables
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE part_document (
did int,
cid int,
dlevel int not null,
dauthor name,
dtitle text
) PARTITION BY RANGE (cid);
GRANT ALL ON part_document TO public;
-- Create partitions for document categories
CREATE TABLE part_document_fiction PARTITION OF part_document FOR VALUES FROM (11) to (12);
CREATE TABLE part_document_satire PARTITION OF part_document FOR VALUES FROM (55) to (56);
CREATE TABLE part_document_nonfiction PARTITION OF part_document FOR VALUES FROM (99) to (100);
GRANT ALL ON part_document_fiction TO public;
GRANT ALL ON part_document_satire TO public;
GRANT ALL ON part_document_nonfiction TO public;
INSERT INTO part_document VALUES
( 1, 11, 1, 'regress_rls_bob', 'my first novel'),
( 2, 11, 2, 'regress_rls_bob', 'my second novel'),
( 3, 99, 2, 'regress_rls_bob', 'my science textbook'),
( 4, 55, 1, 'regress_rls_bob', 'my first satire'),
( 5, 99, 2, 'regress_rls_bob', 'my history book'),
( 6, 11, 1, 'regress_rls_carol', 'great science fiction'),
( 7, 99, 2, 'regress_rls_carol', 'great technology book'),
( 8, 55, 2, 'regress_rls_carol', 'great satire'),
( 9, 11, 1, 'regress_rls_dave', 'awesome science fiction'),
(10, 99, 2, 'regress_rls_dave', 'awesome technology book');
ALTER TABLE part_document ENABLE ROW LEVEL SECURITY;
-- Create policy on parent
-- user's security level must be higher than or equal to document's
CREATE POLICY pp1 ON part_document AS PERMISSIVE
USING (dlevel <= (SELECT seclv FROM uaccount WHERE pguser = current_user));
-- Dave is only allowed to see cid < 55
CREATE POLICY pp1r ON part_document AS RESTRICTIVE TO regress_rls_dave
USING (cid < 55);
\d+ part_document
Table "regress_rls_schema.part_document"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
---------+---------+-----------+----------+---------+----------+--------------+-------------
did | integer | | | | plain | |
cid | integer | | | | plain | |
dlevel | integer | | not null | | plain | |
dauthor | name | | | | plain | |
dtitle | text | | | | extended | |
Partition key: RANGE (cid)
Policies:
POLICY "pp1"
USING ((dlevel <= ( SELECT uaccount.seclv
FROM uaccount
WHERE (uaccount.pguser = CURRENT_USER))))
POLICY "pp1r" AS RESTRICTIVE
TO regress_rls_dave
USING ((cid < 55))
Partitions: part_document_fiction FOR VALUES FROM (11) TO (12),
part_document_nonfiction FOR VALUES FROM (99) TO (100),
part_document_satire FOR VALUES FROM (55) TO (56)
SELECT * FROM pg_policies WHERE schemaname = 'regress_rls_schema' AND tablename like '%part_document%' ORDER BY policyname;
schemaname | tablename | policyname | permissive | roles | cmd | qual | with_check
--------------------+---------------+------------+-------------+--------------------+-----+--------------------------------------------+------------
regress_rls_schema | part_document | pp1 | PERMISSIVE | {public} | ALL | (dlevel <= ( SELECT uaccount.seclv +|
| | | | | | FROM uaccount +|
| | | | | | WHERE (uaccount.pguser = CURRENT_USER))) |
regress_rls_schema | part_document | pp1r | RESTRICTIVE | {regress_rls_dave} | ALL | (cid < 55) |
(2 rows)
-- viewpoint from regress_rls_bob
SET SESSION AUTHORIZATION regress_rls_bob;
SET row_security TO ON;
SELECT * FROM part_document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => great science fiction
NOTICE: f_leak => awesome science fiction
NOTICE: f_leak => my first satire
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
4 | 55 | 1 | regress_rls_bob | my first satire
6 | 11 | 1 | regress_rls_carol | great science fiction
9 | 11 | 1 | regress_rls_dave | awesome science fiction
(4 rows)
EXPLAIN (COSTS OFF) SELECT * FROM part_document WHERE f_leak(dtitle);
QUERY PLAN
-----------------------------------------------------
Append
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
-> Seq Scan on part_document_fiction
Filter: ((dlevel <= $0) AND f_leak(dtitle))
-> Seq Scan on part_document_satire
Filter: ((dlevel <= $0) AND f_leak(dtitle))
-> Seq Scan on part_document_nonfiction
Filter: ((dlevel <= $0) AND f_leak(dtitle))
(10 rows)
-- viewpoint from regress_rls_carol
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM part_document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => great science fiction
NOTICE: f_leak => awesome science fiction
NOTICE: f_leak => my first satire
NOTICE: f_leak => great satire
NOTICE: f_leak => my science textbook
NOTICE: f_leak => my history book
NOTICE: f_leak => great technology book
NOTICE: f_leak => awesome technology book
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 99 | 2 | regress_rls_bob | my science textbook
4 | 55 | 1 | regress_rls_bob | my first satire
5 | 99 | 2 | regress_rls_bob | my history book
6 | 11 | 1 | regress_rls_carol | great science fiction
7 | 99 | 2 | regress_rls_carol | great technology book
8 | 55 | 2 | regress_rls_carol | great satire
9 | 11 | 1 | regress_rls_dave | awesome science fiction
10 | 99 | 2 | regress_rls_dave | awesome technology book
(10 rows)
EXPLAIN (COSTS OFF) SELECT * FROM part_document WHERE f_leak(dtitle);
QUERY PLAN
-----------------------------------------------------
Append
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
-> Seq Scan on part_document_fiction
Filter: ((dlevel <= $0) AND f_leak(dtitle))
-> Seq Scan on part_document_satire
Filter: ((dlevel <= $0) AND f_leak(dtitle))
-> Seq Scan on part_document_nonfiction
Filter: ((dlevel <= $0) AND f_leak(dtitle))
(10 rows)
-- viewpoint from regress_rls_dave
SET SESSION AUTHORIZATION regress_rls_dave;
SELECT * FROM part_document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => great science fiction
NOTICE: f_leak => awesome science fiction
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
6 | 11 | 1 | regress_rls_carol | great science fiction
9 | 11 | 1 | regress_rls_dave | awesome science fiction
(4 rows)
EXPLAIN (COSTS OFF) SELECT * FROM part_document WHERE f_leak(dtitle);
QUERY PLAN
--------------------------------------------------------------------
Append
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
-> Seq Scan on part_document_fiction
Filter: ((cid < 55) AND (dlevel <= $0) AND f_leak(dtitle))
(6 rows)
-- pp1 ERROR
INSERT INTO part_document VALUES (100, 11, 5, 'regress_rls_dave', 'testing pp1'); -- fail
ERROR: new row violates row-level security policy for table "part_document"
-- pp1r ERROR
INSERT INTO part_document VALUES (100, 99, 1, 'regress_rls_dave', 'testing pp1r'); -- fail
ERROR: new row violates row-level security policy "pp1r" for table "part_document"
-- Show that RLS policy does not apply for direct inserts to children
-- This should fail with RLS POLICY pp1r violation.
INSERT INTO part_document VALUES (100, 55, 1, 'regress_rls_dave', 'testing RLS with partitions'); -- fail
ERROR: new row violates row-level security policy "pp1r" for table "part_document"
-- But this should succeed.
INSERT INTO part_document_satire VALUES (100, 55, 1, 'regress_rls_dave', 'testing RLS with partitions'); -- success
-- We still cannot see the row using the parent
SELECT * FROM part_document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => great science fiction
NOTICE: f_leak => awesome science fiction
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
6 | 11 | 1 | regress_rls_carol | great science fiction
9 | 11 | 1 | regress_rls_dave | awesome science fiction
(4 rows)
-- But we can if we look directly
SELECT * FROM part_document_satire WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first satire
NOTICE: f_leak => great satire
NOTICE: f_leak => testing RLS with partitions
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------------
4 | 55 | 1 | regress_rls_bob | my first satire
8 | 55 | 2 | regress_rls_carol | great satire
100 | 55 | 1 | regress_rls_dave | testing RLS with partitions
(3 rows)
-- Turn on RLS and create policy on child to show RLS is checked before constraints
SET SESSION AUTHORIZATION regress_rls_alice;
ALTER TABLE part_document_satire ENABLE ROW LEVEL SECURITY;
CREATE POLICY pp3 ON part_document_satire AS RESTRICTIVE
USING (cid < 55);
-- This should fail with RLS violation now.
SET SESSION AUTHORIZATION regress_rls_dave;
INSERT INTO part_document_satire VALUES (101, 55, 1, 'regress_rls_dave', 'testing RLS with partitions'); -- fail
ERROR: new row violates row-level security policy for table "part_document_satire"
-- And now we cannot see directly into the partition either, due to RLS
SELECT * FROM part_document_satire WHERE f_leak(dtitle) ORDER BY did;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+---------+--------
(0 rows)
-- The parent looks same as before
-- viewpoint from regress_rls_dave
SELECT * FROM part_document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => great science fiction
NOTICE: f_leak => awesome science fiction
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
6 | 11 | 1 | regress_rls_carol | great science fiction
9 | 11 | 1 | regress_rls_dave | awesome science fiction
(4 rows)
EXPLAIN (COSTS OFF) SELECT * FROM part_document WHERE f_leak(dtitle);
QUERY PLAN
--------------------------------------------------------------------
Append
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
-> Seq Scan on part_document_fiction
Filter: ((cid < 55) AND (dlevel <= $0) AND f_leak(dtitle))
(6 rows)
-- viewpoint from regress_rls_carol
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM part_document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => great science fiction
NOTICE: f_leak => awesome science fiction
NOTICE: f_leak => my first satire
NOTICE: f_leak => great satire
NOTICE: f_leak => testing RLS with partitions
NOTICE: f_leak => my science textbook
NOTICE: f_leak => my history book
NOTICE: f_leak => great technology book
NOTICE: f_leak => awesome technology book
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 99 | 2 | regress_rls_bob | my science textbook
4 | 55 | 1 | regress_rls_bob | my first satire
5 | 99 | 2 | regress_rls_bob | my history book
6 | 11 | 1 | regress_rls_carol | great science fiction
7 | 99 | 2 | regress_rls_carol | great technology book
8 | 55 | 2 | regress_rls_carol | great satire
9 | 11 | 1 | regress_rls_dave | awesome science fiction
10 | 99 | 2 | regress_rls_dave | awesome technology book
100 | 55 | 1 | regress_rls_dave | testing RLS with partitions
(11 rows)
EXPLAIN (COSTS OFF) SELECT * FROM part_document WHERE f_leak(dtitle);
QUERY PLAN
-----------------------------------------------------
Append
InitPlan 1 (returns $0)
-> Index Scan using uaccount_pkey on uaccount
Index Cond: (pguser = CURRENT_USER)
-> Seq Scan on part_document_fiction
Filter: ((dlevel <= $0) AND f_leak(dtitle))
-> Seq Scan on part_document_satire
Filter: ((dlevel <= $0) AND f_leak(dtitle))
-> Seq Scan on part_document_nonfiction
Filter: ((dlevel <= $0) AND f_leak(dtitle))
(10 rows)
-- only owner can change policies
ALTER POLICY pp1 ON part_document USING (true); --fail
ERROR: must be owner of relation part_document
DROP POLICY pp1 ON part_document; --fail
ERROR: must be owner of relation part_document
SET SESSION AUTHORIZATION regress_rls_alice;
ALTER POLICY pp1 ON part_document USING (dauthor = current_user);
-- viewpoint from regress_rls_bob again
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM part_document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => my first novel
NOTICE: f_leak => my second novel
NOTICE: f_leak => my first satire
NOTICE: f_leak => my science textbook
NOTICE: f_leak => my history book
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-----------------+---------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 99 | 2 | regress_rls_bob | my science textbook
4 | 55 | 1 | regress_rls_bob | my first satire
5 | 99 | 2 | regress_rls_bob | my history book
(5 rows)
-- viewpoint from rls_regres_carol again
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM part_document WHERE f_leak(dtitle) ORDER BY did;
NOTICE: f_leak => great science fiction
NOTICE: f_leak => great satire
NOTICE: f_leak => great technology book
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------
6 | 11 | 1 | regress_rls_carol | great science fiction
7 | 99 | 2 | regress_rls_carol | great technology book
8 | 55 | 2 | regress_rls_carol | great satire
(3 rows)
EXPLAIN (COSTS OFF) SELECT * FROM part_document WHERE f_leak(dtitle);
QUERY PLAN
---------------------------------------------------------------
Append
-> Seq Scan on part_document_fiction
Filter: ((dauthor = CURRENT_USER) AND f_leak(dtitle))
-> Seq Scan on part_document_satire
Filter: ((dauthor = CURRENT_USER) AND f_leak(dtitle))
-> Seq Scan on part_document_nonfiction
Filter: ((dauthor = CURRENT_USER) AND f_leak(dtitle))
(7 rows)
-- database superuser does bypass RLS policy when enabled
RESET SESSION AUTHORIZATION;
SET row_security TO ON;
SELECT * FROM part_document ORDER BY did;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 99 | 2 | regress_rls_bob | my science textbook
4 | 55 | 1 | regress_rls_bob | my first satire
5 | 99 | 2 | regress_rls_bob | my history book
6 | 11 | 1 | regress_rls_carol | great science fiction
7 | 99 | 2 | regress_rls_carol | great technology book
8 | 55 | 2 | regress_rls_carol | great satire
9 | 11 | 1 | regress_rls_dave | awesome science fiction
10 | 99 | 2 | regress_rls_dave | awesome technology book
100 | 55 | 1 | regress_rls_dave | testing RLS with partitions
(11 rows)
SELECT * FROM part_document_satire ORDER by did;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------------
4 | 55 | 1 | regress_rls_bob | my first satire
8 | 55 | 2 | regress_rls_carol | great satire
100 | 55 | 1 | regress_rls_dave | testing RLS with partitions
(3 rows)
-- database non-superuser with bypass privilege can bypass RLS policy when disabled
SET SESSION AUTHORIZATION regress_rls_exempt_user;
SET row_security TO OFF;
SELECT * FROM part_document ORDER BY did;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 99 | 2 | regress_rls_bob | my science textbook
4 | 55 | 1 | regress_rls_bob | my first satire
5 | 99 | 2 | regress_rls_bob | my history book
6 | 11 | 1 | regress_rls_carol | great science fiction
7 | 99 | 2 | regress_rls_carol | great technology book
8 | 55 | 2 | regress_rls_carol | great satire
9 | 11 | 1 | regress_rls_dave | awesome science fiction
10 | 99 | 2 | regress_rls_dave | awesome technology book
100 | 55 | 1 | regress_rls_dave | testing RLS with partitions
(11 rows)
SELECT * FROM part_document_satire ORDER by did;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------------
4 | 55 | 1 | regress_rls_bob | my first satire
8 | 55 | 2 | regress_rls_carol | great satire
100 | 55 | 1 | regress_rls_dave | testing RLS with partitions
(3 rows)
-- RLS policy does not apply to table owner when RLS enabled.
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security TO ON;
SELECT * FROM part_document ORDER by did;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------------
1 | 11 | 1 | regress_rls_bob | my first novel
2 | 11 | 2 | regress_rls_bob | my second novel
3 | 99 | 2 | regress_rls_bob | my science textbook
4 | 55 | 1 | regress_rls_bob | my first satire
5 | 99 | 2 | regress_rls_bob | my history book
6 | 11 | 1 | regress_rls_carol | great science fiction
7 | 99 | 2 | regress_rls_carol | great technology book
8 | 55 | 2 | regress_rls_carol | great satire
9 | 11 | 1 | regress_rls_dave | awesome science fiction
10 | 99 | 2 | regress_rls_dave | awesome technology book
100 | 55 | 1 | regress_rls_dave | testing RLS with partitions
(11 rows)
SELECT * FROM part_document_satire ORDER by did;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-------------------+-----------------------------
4 | 55 | 1 | regress_rls_bob | my first satire
8 | 55 | 2 | regress_rls_carol | great satire
100 | 55 | 1 | regress_rls_dave | testing RLS with partitions
(3 rows)
-- When RLS disabled, other users get ERROR.
SET SESSION AUTHORIZATION regress_rls_dave;
SET row_security TO OFF;
SELECT * FROM part_document ORDER by did;
ERROR: query would be affected by row-level security policy for table "part_document"
SELECT * FROM part_document_satire ORDER by did;
ERROR: query would be affected by row-level security policy for table "part_document_satire"
-- Check behavior with a policy that uses a SubPlan not an InitPlan.
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security TO ON;
CREATE POLICY pp3 ON part_document AS RESTRICTIVE
USING ((SELECT dlevel <= seclv FROM uaccount WHERE pguser = current_user));
SET SESSION AUTHORIZATION regress_rls_carol;
INSERT INTO part_document VALUES (100, 11, 5, 'regress_rls_carol', 'testing pp3'); -- fail
ERROR: new row violates row-level security policy "pp3" for table "part_document"
----- Dependencies -----
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security TO ON;
CREATE TABLE dependee (x integer, y integer);
CREATE TABLE dependent (x integer, y integer);
CREATE POLICY d1 ON dependent FOR ALL
TO PUBLIC
USING (x = (SELECT d.x FROM dependee d WHERE d.y = y));
DROP TABLE dependee; -- Should fail without CASCADE due to dependency on row security qual?
ERROR: cannot drop table dependee because other objects depend on it
DETAIL: policy d1 on table dependent depends on table dependee
HINT: Use DROP ... CASCADE to drop the dependent objects too.
DROP TABLE dependee CASCADE;
NOTICE: drop cascades to policy d1 on table dependent
EXPLAIN (COSTS OFF) SELECT * FROM dependent; -- After drop, should be unqualified
QUERY PLAN
-----------------------
Seq Scan on dependent
(1 row)
----- RECURSION ----
--
-- Simple recursion
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE rec1 (x integer, y integer);
CREATE POLICY r1 ON rec1 USING (x = (SELECT r.x FROM rec1 r WHERE y = r.y));
ALTER TABLE rec1 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM rec1; -- fail, direct recursion
ERROR: infinite recursion detected in policy for relation "rec1"
--
-- Mutual recursion
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE rec2 (a integer, b integer);
ALTER POLICY r1 ON rec1 USING (x = (SELECT a FROM rec2 WHERE b = y));
CREATE POLICY r2 ON rec2 USING (a = (SELECT x FROM rec1 WHERE y = b));
ALTER TABLE rec2 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM rec1; -- fail, mutual recursion
ERROR: infinite recursion detected in policy for relation "rec1"
--
-- Mutual recursion via views
--
SET SESSION AUTHORIZATION regress_rls_bob;
CREATE VIEW rec1v AS SELECT * FROM rec1;
CREATE VIEW rec2v AS SELECT * FROM rec2;
SET SESSION AUTHORIZATION regress_rls_alice;
ALTER POLICY r1 ON rec1 USING (x = (SELECT a FROM rec2v WHERE b = y));
ALTER POLICY r2 ON rec2 USING (a = (SELECT x FROM rec1v WHERE y = b));
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM rec1; -- fail, mutual recursion via views
ERROR: infinite recursion detected in policy for relation "rec1"
--
-- Mutual recursion via .s.b views
--
SET SESSION AUTHORIZATION regress_rls_bob;
\set VERBOSITY terse \\ -- suppress cascade details
DROP VIEW rec1v, rec2v CASCADE;
NOTICE: drop cascades to 2 other objects
\set VERBOSITY default
CREATE VIEW rec1v WITH (security_barrier) AS SELECT * FROM rec1;
CREATE VIEW rec2v WITH (security_barrier) AS SELECT * FROM rec2;
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE POLICY r1 ON rec1 USING (x = (SELECT a FROM rec2v WHERE b = y));
CREATE POLICY r2 ON rec2 USING (a = (SELECT x FROM rec1v WHERE y = b));
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM rec1; -- fail, mutual recursion via s.b. views
ERROR: infinite recursion detected in policy for relation "rec1"
--
-- recursive RLS and VIEWs in policy
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE s1 (a int, b text);
INSERT INTO s1 (SELECT x, md5(x::text) FROM generate_series(-10,10) x);
CREATE TABLE s2 (x int, y text);
INSERT INTO s2 (SELECT x, md5(x::text) FROM generate_series(-6,6) x);
GRANT SELECT ON s1, s2 TO regress_rls_bob;
CREATE POLICY p1 ON s1 USING (a in (select x from s2 where y like '%2f%'));
CREATE POLICY p2 ON s2 USING (x in (select a from s1 where b like '%22%'));
CREATE POLICY p3 ON s1 FOR INSERT WITH CHECK (a = (SELECT a FROM s1));
ALTER TABLE s1 ENABLE ROW LEVEL SECURITY;
ALTER TABLE s2 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
CREATE VIEW v2 AS SELECT * FROM s2 WHERE y like '%af%';
SELECT * FROM s1 WHERE f_leak(b); -- fail (infinite recursion)
ERROR: infinite recursion detected in policy for relation "s1"
INSERT INTO s1 VALUES (1, 'foo'); -- fail (infinite recursion)
ERROR: infinite recursion detected in policy for relation "s1"
SET SESSION AUTHORIZATION regress_rls_alice;
DROP POLICY p3 on s1;
ALTER POLICY p2 ON s2 USING (x % 2 = 0);
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM s1 WHERE f_leak(b); -- OK
NOTICE: f_leak => c81e728d9d4c2f636f067f89cc14862c
NOTICE: f_leak => a87ff679a2f3e71d9181a67b7542122c
a | b
---+----------------------------------
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM only s1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------------------
Seq Scan on s1
Filter: ((hashed SubPlan 1) AND f_leak(b))
SubPlan 1
-> Seq Scan on s2
Filter: (((x % 2) = 0) AND (y ~~ '%2f%'::text))
(5 rows)
SET SESSION AUTHORIZATION regress_rls_alice;
ALTER POLICY p1 ON s1 USING (a in (select x from v2)); -- using VIEW in RLS policy
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM s1 WHERE f_leak(b); -- OK
NOTICE: f_leak => 0267aaf632e87a63288a08331f22c7c3
NOTICE: f_leak => 1679091c5a880faf6fb5e6087eb1b2dc
a | b
----+----------------------------------
-4 | 0267aaf632e87a63288a08331f22c7c3
6 | 1679091c5a880faf6fb5e6087eb1b2dc
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM s1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------------------
Seq Scan on s1
Filter: ((hashed SubPlan 1) AND f_leak(b))
SubPlan 1
-> Seq Scan on s2
Filter: (((x % 2) = 0) AND (y ~~ '%af%'::text))
(5 rows)
SELECT (SELECT x FROM s1 LIMIT 1) xx, * FROM s2 WHERE y like '%28%';
xx | x | y
----+----+----------------------------------
-6 | -6 | 596a3d04481816330f07e4f97510c28f
-4 | -4 | 0267aaf632e87a63288a08331f22c7c3
2 | 2 | c81e728d9d4c2f636f067f89cc14862c
(3 rows)
EXPLAIN (COSTS OFF) SELECT (SELECT x FROM s1 LIMIT 1) xx, * FROM s2 WHERE y like '%28%';
QUERY PLAN
-------------------------------------------------------------------------
Seq Scan on s2
Filter: (((x % 2) = 0) AND (y ~~ '%28%'::text))
SubPlan 2
-> Limit
-> Seq Scan on s1
Filter: (hashed SubPlan 1)
SubPlan 1
-> Seq Scan on s2 s2_1
Filter: (((x % 2) = 0) AND (y ~~ '%af%'::text))
(9 rows)
SET SESSION AUTHORIZATION regress_rls_alice;
ALTER POLICY p2 ON s2 USING (x in (select a from s1 where b like '%d2%'));
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM s1 WHERE f_leak(b); -- fail (infinite recursion via view)
ERROR: infinite recursion detected in policy for relation "s1"
-- prepared statement with regress_rls_alice privilege
PREPARE p1(int) AS SELECT * FROM t1 WHERE a <= $1;
EXECUTE p1(2);
a | b
---+-----
2 | bbb
2 | bcd
2 | yyy
(3 rows)
EXPLAIN (COSTS OFF) EXECUTE p1(2);
QUERY PLAN
----------------------------------------------
Append
-> Seq Scan on t1
Filter: ((a <= 2) AND ((a % 2) = 0))
-> Seq Scan on t2
Filter: ((a <= 2) AND ((a % 2) = 0))
-> Seq Scan on t3
Filter: ((a <= 2) AND ((a % 2) = 0))
(7 rows)
-- superuser is allowed to bypass RLS checks
RESET SESSION AUTHORIZATION;
SET row_security TO OFF;
SELECT * FROM t1 WHERE f_leak(b);
NOTICE: f_leak => aba
NOTICE: f_leak => bbb
NOTICE: f_leak => ccc
NOTICE: f_leak => dad
NOTICE: f_leak => abc
NOTICE: f_leak => bcd
NOTICE: f_leak => cde
NOTICE: f_leak => def
NOTICE: f_leak => xxx
NOTICE: f_leak => yyy
NOTICE: f_leak => zzz
a | b
---+-----
1 | aba
2 | bbb
3 | ccc
4 | dad
1 | abc
2 | bcd
3 | cde
4 | def
1 | xxx
2 | yyy
3 | zzz
(11 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1 WHERE f_leak(b);
QUERY PLAN
---------------------------
Append
-> Seq Scan on t1
Filter: f_leak(b)
-> Seq Scan on t2
Filter: f_leak(b)
-> Seq Scan on t3
Filter: f_leak(b)
(7 rows)
-- plan cache should be invalidated
EXECUTE p1(2);
a | b
---+-----
1 | aba
2 | bbb
1 | abc
2 | bcd
1 | xxx
2 | yyy
(6 rows)
EXPLAIN (COSTS OFF) EXECUTE p1(2);
QUERY PLAN
--------------------------
Append
-> Seq Scan on t1
Filter: (a <= 2)
-> Seq Scan on t2
Filter: (a <= 2)
-> Seq Scan on t3
Filter: (a <= 2)
(7 rows)
PREPARE p2(int) AS SELECT * FROM t1 WHERE a = $1;
EXECUTE p2(2);
a | b
---+-----
2 | bbb
2 | bcd
2 | yyy
(3 rows)
EXPLAIN (COSTS OFF) EXECUTE p2(2);
QUERY PLAN
-------------------------
Append
-> Seq Scan on t1
Filter: (a = 2)
-> Seq Scan on t2
Filter: (a = 2)
-> Seq Scan on t3
Filter: (a = 2)
(7 rows)
-- also, case when privilege switch from superuser
SET SESSION AUTHORIZATION regress_rls_bob;
SET row_security TO ON;
EXECUTE p2(2);
a | b
---+-----
2 | bbb
2 | bcd
2 | yyy
(3 rows)
EXPLAIN (COSTS OFF) EXECUTE p2(2);
QUERY PLAN
---------------------------------------------
Append
-> Seq Scan on t1
Filter: ((a = 2) AND ((a % 2) = 0))
-> Seq Scan on t2
Filter: ((a = 2) AND ((a % 2) = 0))
-> Seq Scan on t3
Filter: ((a = 2) AND ((a % 2) = 0))
(7 rows)
--
-- UPDATE / DELETE and Row-level security
--
SET SESSION AUTHORIZATION regress_rls_bob;
EXPLAIN (COSTS OFF) UPDATE t1 SET b = b || b WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------
Update on t1
Update on t1
Update on t2
Update on t3
-> Seq Scan on t1
Filter: (((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2
Filter: (((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t3
Filter: (((a % 2) = 0) AND f_leak(b))
(10 rows)
UPDATE t1 SET b = b || b WHERE f_leak(b);
NOTICE: f_leak => bbb
NOTICE: f_leak => dad
NOTICE: f_leak => bcd
NOTICE: f_leak => def
NOTICE: f_leak => yyy
EXPLAIN (COSTS OFF) UPDATE only t1 SET b = b || '_updt' WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------
Update on t1
-> Seq Scan on t1
Filter: (((a % 2) = 0) AND f_leak(b))
(3 rows)
UPDATE only t1 SET b = b || '_updt' WHERE f_leak(b);
NOTICE: f_leak => bbbbbb
NOTICE: f_leak => daddad
-- returning clause with system column
UPDATE only t1 SET b = b WHERE f_leak(b) RETURNING oid, *, t1;
NOTICE: f_leak => bbbbbb_updt
NOTICE: f_leak => daddad_updt
oid | a | b | t1
-----+---+-------------+-----------------
102 | 2 | bbbbbb_updt | (2,bbbbbb_updt)
104 | 4 | daddad_updt | (4,daddad_updt)
(2 rows)
UPDATE t1 SET b = b WHERE f_leak(b) RETURNING *;
NOTICE: f_leak => bbbbbb_updt
NOTICE: f_leak => daddad_updt
NOTICE: f_leak => bcdbcd
NOTICE: f_leak => defdef
NOTICE: f_leak => yyyyyy
a | b
---+-------------
2 | bbbbbb_updt
4 | daddad_updt
2 | bcdbcd
4 | defdef
2 | yyyyyy
(5 rows)
UPDATE t1 SET b = b WHERE f_leak(b) RETURNING oid, *, t1;
NOTICE: f_leak => bbbbbb_updt
NOTICE: f_leak => daddad_updt
NOTICE: f_leak => bcdbcd
NOTICE: f_leak => defdef
NOTICE: f_leak => yyyyyy
oid | a | b | t1
-----+---+-------------+-----------------
102 | 2 | bbbbbb_updt | (2,bbbbbb_updt)
104 | 4 | daddad_updt | (4,daddad_updt)
202 | 2 | bcdbcd | (2,bcdbcd)
204 | 4 | defdef | (4,defdef)
302 | 2 | yyyyyy | (2,yyyyyy)
(5 rows)
-- updates with from clause
EXPLAIN (COSTS OFF) UPDATE t2 SET b=t2.b FROM t3
WHERE t2.a = 3 and t3.a = 2 AND f_leak(t2.b) AND f_leak(t3.b);
QUERY PLAN
-----------------------------------------------------------------
Update on t2
-> Nested Loop
-> Seq Scan on t2
Filter: ((a = 3) AND ((a % 2) = 1) AND f_leak(b))
-> Seq Scan on t3
Filter: ((a = 2) AND f_leak(b))
(6 rows)
UPDATE t2 SET b=t2.b FROM t3
WHERE t2.a = 3 and t3.a = 2 AND f_leak(t2.b) AND f_leak(t3.b);
NOTICE: f_leak => cde
NOTICE: f_leak => yyyyyy
EXPLAIN (COSTS OFF) UPDATE t1 SET b=t1.b FROM t2
WHERE t1.a = 3 and t2.a = 3 AND f_leak(t1.b) AND f_leak(t2.b);
QUERY PLAN
-----------------------------------------------------------------
Update on t1
Update on t1
Update on t2 t2_1
Update on t3
-> Nested Loop
-> Seq Scan on t1
Filter: ((a = 3) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2
Filter: ((a = 3) AND ((a % 2) = 1) AND f_leak(b))
-> Nested Loop
-> Seq Scan on t2 t2_1
Filter: ((a = 3) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2
Filter: ((a = 3) AND ((a % 2) = 1) AND f_leak(b))
-> Nested Loop
-> Seq Scan on t3
Filter: ((a = 3) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2
Filter: ((a = 3) AND ((a % 2) = 1) AND f_leak(b))
(19 rows)
UPDATE t1 SET b=t1.b FROM t2
WHERE t1.a = 3 and t2.a = 3 AND f_leak(t1.b) AND f_leak(t2.b);
EXPLAIN (COSTS OFF) UPDATE t2 SET b=t2.b FROM t1
WHERE t1.a = 3 and t2.a = 3 AND f_leak(t1.b) AND f_leak(t2.b);
QUERY PLAN
-----------------------------------------------------------------------
Update on t2
-> Nested Loop
-> Seq Scan on t2
Filter: ((a = 3) AND ((a % 2) = 1) AND f_leak(b))
-> Append
-> Seq Scan on t1
Filter: ((a = 3) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2 t2_1
Filter: ((a = 3) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t3
Filter: ((a = 3) AND ((a % 2) = 0) AND f_leak(b))
(11 rows)
UPDATE t2 SET b=t2.b FROM t1
WHERE t1.a = 3 and t2.a = 3 AND f_leak(t1.b) AND f_leak(t2.b);
NOTICE: f_leak => cde
-- updates with from clause self join
EXPLAIN (COSTS OFF) UPDATE t2 t2_1 SET b = t2_2.b FROM t2 t2_2
WHERE t2_1.a = 3 AND t2_2.a = t2_1.a AND t2_2.b = t2_1.b
AND f_leak(t2_1.b) AND f_leak(t2_2.b) RETURNING *, t2_1, t2_2;
QUERY PLAN
-----------------------------------------------------------------
Update on t2 t2_1
-> Nested Loop
Join Filter: (t2_1.b = t2_2.b)
-> Seq Scan on t2 t2_1
Filter: ((a = 3) AND ((a % 2) = 1) AND f_leak(b))
-> Seq Scan on t2 t2_2
Filter: ((a = 3) AND ((a % 2) = 1) AND f_leak(b))
(7 rows)
UPDATE t2 t2_1 SET b = t2_2.b FROM t2 t2_2
WHERE t2_1.a = 3 AND t2_2.a = t2_1.a AND t2_2.b = t2_1.b
AND f_leak(t2_1.b) AND f_leak(t2_2.b) RETURNING *, t2_1, t2_2;
NOTICE: f_leak => cde
NOTICE: f_leak => cde
a | b | c | a | b | c | t2_1 | t2_2
---+-----+-----+---+-----+-----+-------------+-------------
3 | cde | 3.3 | 3 | cde | 3.3 | (3,cde,3.3) | (3,cde,3.3)
(1 row)
EXPLAIN (COSTS OFF) UPDATE t1 t1_1 SET b = t1_2.b FROM t1 t1_2
WHERE t1_1.a = 4 AND t1_2.a = t1_1.a AND t1_2.b = t1_1.b
AND f_leak(t1_1.b) AND f_leak(t1_2.b) RETURNING *, t1_1, t1_2;
QUERY PLAN
-----------------------------------------------------------------------
Update on t1 t1_1
Update on t1 t1_1
Update on t2 t1_1_1
Update on t3 t1_1_2
-> Nested Loop
Join Filter: (t1_1.b = t1_2.b)
-> Seq Scan on t1 t1_1
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Append
-> Seq Scan on t1 t1_2
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2 t1_2_1
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t3 t1_2_2
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Nested Loop
Join Filter: (t1_1_1.b = t1_2.b)
-> Seq Scan on t2 t1_1_1
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Append
-> Seq Scan on t1 t1_2
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2 t1_2_1
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t3 t1_2_2
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Nested Loop
Join Filter: (t1_1_2.b = t1_2.b)
-> Seq Scan on t3 t1_1_2
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Append
-> Seq Scan on t1 t1_2
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2 t1_2_1
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t3 t1_2_2
Filter: ((a = 4) AND ((a % 2) = 0) AND f_leak(b))
(37 rows)
UPDATE t1 t1_1 SET b = t1_2.b FROM t1 t1_2
WHERE t1_1.a = 4 AND t1_2.a = t1_1.a AND t1_2.b = t1_1.b
AND f_leak(t1_1.b) AND f_leak(t1_2.b) RETURNING *, t1_1, t1_2;
NOTICE: f_leak => daddad_updt
NOTICE: f_leak => daddad_updt
NOTICE: f_leak => defdef
NOTICE: f_leak => defdef
NOTICE: f_leak => daddad_updt
NOTICE: f_leak => defdef
a | b | a | b | t1_1 | t1_2
---+-------------+---+-------------+-----------------+-----------------
4 | daddad_updt | 4 | daddad_updt | (4,daddad_updt) | (4,daddad_updt)
4 | defdef | 4 | defdef | (4,defdef) | (4,defdef)
(2 rows)
RESET SESSION AUTHORIZATION;
SET row_security TO OFF;
SELECT * FROM t1 ORDER BY a,b;
a | b
---+-------------
1 | aba
1 | abc
1 | xxx
2 | bbbbbb_updt
2 | bcdbcd
2 | yyyyyy
3 | ccc
3 | cde
3 | zzz
4 | daddad_updt
4 | defdef
(11 rows)
SET SESSION AUTHORIZATION regress_rls_bob;
SET row_security TO ON;
EXPLAIN (COSTS OFF) DELETE FROM only t1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------
Delete on t1
-> Seq Scan on t1
Filter: (((a % 2) = 0) AND f_leak(b))
(3 rows)
EXPLAIN (COSTS OFF) DELETE FROM t1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------
Delete on t1
Delete on t1
Delete on t2
Delete on t3
-> Seq Scan on t1
Filter: (((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t2
Filter: (((a % 2) = 0) AND f_leak(b))
-> Seq Scan on t3
Filter: (((a % 2) = 0) AND f_leak(b))
(10 rows)
DELETE FROM only t1 WHERE f_leak(b) RETURNING oid, *, t1;
NOTICE: f_leak => bbbbbb_updt
NOTICE: f_leak => daddad_updt
oid | a | b | t1
-----+---+-------------+-----------------
102 | 2 | bbbbbb_updt | (2,bbbbbb_updt)
104 | 4 | daddad_updt | (4,daddad_updt)
(2 rows)
DELETE FROM t1 WHERE f_leak(b) RETURNING oid, *, t1;
NOTICE: f_leak => bcdbcd
NOTICE: f_leak => defdef
NOTICE: f_leak => yyyyyy
oid | a | b | t1
-----+---+--------+------------
202 | 2 | bcdbcd | (2,bcdbcd)
204 | 4 | defdef | (4,defdef)
302 | 2 | yyyyyy | (2,yyyyyy)
(3 rows)
--
-- S.b. view on top of Row-level security
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE b1 (a int, b text);
INSERT INTO b1 (SELECT x, md5(x::text) FROM generate_series(-10,10) x);
CREATE POLICY p1 ON b1 USING (a % 2 = 0);
ALTER TABLE b1 ENABLE ROW LEVEL SECURITY;
GRANT ALL ON b1 TO regress_rls_bob;
SET SESSION AUTHORIZATION regress_rls_bob;
CREATE VIEW bv1 WITH (security_barrier) AS SELECT * FROM b1 WHERE a > 0 WITH CHECK OPTION;
GRANT ALL ON bv1 TO regress_rls_carol;
SET SESSION AUTHORIZATION regress_rls_carol;
EXPLAIN (COSTS OFF) SELECT * FROM bv1 WHERE f_leak(b);
QUERY PLAN
---------------------------------------------
Subquery Scan on bv1
Filter: f_leak(bv1.b)
-> Seq Scan on b1
Filter: ((a > 0) AND ((a % 2) = 0))
(4 rows)
SELECT * FROM bv1 WHERE f_leak(b);
NOTICE: f_leak => c81e728d9d4c2f636f067f89cc14862c
NOTICE: f_leak => a87ff679a2f3e71d9181a67b7542122c
NOTICE: f_leak => 1679091c5a880faf6fb5e6087eb1b2dc
NOTICE: f_leak => c9f0f895fb98ab9159f51fd0297e236d
NOTICE: f_leak => d3d9446802a44259755d38e6d163e820
a | b
----+----------------------------------
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
10 | d3d9446802a44259755d38e6d163e820
(5 rows)
INSERT INTO bv1 VALUES (-1, 'xxx'); -- should fail view WCO
ERROR: new row violates row-level security policy for table "b1"
INSERT INTO bv1 VALUES (11, 'xxx'); -- should fail RLS check
ERROR: new row violates row-level security policy for table "b1"
INSERT INTO bv1 VALUES (12, 'xxx'); -- ok
EXPLAIN (COSTS OFF) UPDATE bv1 SET b = 'yyy' WHERE a = 4 AND f_leak(b);
QUERY PLAN
-----------------------------------------------------------------------
Update on b1
-> Seq Scan on b1
Filter: ((a > 0) AND (a = 4) AND ((a % 2) = 0) AND f_leak(b))
(3 rows)
UPDATE bv1 SET b = 'yyy' WHERE a = 4 AND f_leak(b);
NOTICE: f_leak => a87ff679a2f3e71d9181a67b7542122c
EXPLAIN (COSTS OFF) DELETE FROM bv1 WHERE a = 6 AND f_leak(b);
QUERY PLAN
-----------------------------------------------------------------------
Delete on b1
-> Seq Scan on b1
Filter: ((a > 0) AND (a = 6) AND ((a % 2) = 0) AND f_leak(b))
(3 rows)
DELETE FROM bv1 WHERE a = 6 AND f_leak(b);
NOTICE: f_leak => 1679091c5a880faf6fb5e6087eb1b2dc
SET SESSION AUTHORIZATION regress_rls_alice;
SELECT * FROM b1;
a | b
-----+----------------------------------
-10 | 1b0fd9efa5279c4203b7c70233f86dbf
-9 | 252e691406782824eec43d7eadc3d256
-8 | a8d2ec85eaf98407310b72eb73dda247
-7 | 74687a12d3915d3c4d83f1af7b3683d5
-6 | 596a3d04481816330f07e4f97510c28f
-5 | 47c1b025fa18ea96c33fbb6718688c0f
-4 | 0267aaf632e87a63288a08331f22c7c3
-3 | b3149ecea4628efd23d2f86e5a723472
-2 | 5d7b9adcbe1c629ec722529dd12e5129
-1 | 6bb61e3b7bce0931da574d19d1d82c88
0 | cfcd208495d565ef66e7dff9f98764da
1 | c4ca4238a0b923820dcc509a6f75849b
2 | c81e728d9d4c2f636f067f89cc14862c
3 | eccbc87e4b5ce2fe28308fd9f2a7baf3
5 | e4da3b7fbbce2345d7772b0674a318d5
7 | 8f14e45fceea167a5a36dedd4bea2543
8 | c9f0f895fb98ab9159f51fd0297e236d
9 | 45c48cce2e2d7fbdea1afc51c7c6ad26
10 | d3d9446802a44259755d38e6d163e820
12 | xxx
4 | yyy
(21 rows)
--
-- INSERT ... ON CONFLICT DO UPDATE and Row-level security
--
SET SESSION AUTHORIZATION regress_rls_alice;
DROP POLICY p1 ON document;
DROP POLICY p1r ON document;
CREATE POLICY p1 ON document FOR SELECT USING (true);
CREATE POLICY p2 ON document FOR INSERT WITH CHECK (dauthor = current_user);
CREATE POLICY p3 ON document FOR UPDATE
USING (cid = (SELECT cid from category WHERE cname = 'novel'))
WITH CHECK (dauthor = current_user);
SET SESSION AUTHORIZATION regress_rls_bob;
-- Exists...
SELECT * FROM document WHERE did = 2;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-----------------+-----------------
2 | 11 | 2 | regress_rls_bob | my second novel
(1 row)
-- ...so violates actual WITH CHECK OPTION within UPDATE (not INSERT, since
-- alternative UPDATE path happens to be taken):
INSERT INTO document VALUES (2, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_carol', 'my first novel')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle, dauthor = EXCLUDED.dauthor;
ERROR: new row violates row-level security policy for table "document"
-- Violates USING qual for UPDATE policy p3.
--
-- UPDATE path is taken, but UPDATE fails purely because *existing* row to be
-- updated is not a "novel"/cid 11 (row is not leaked, even though we have
-- SELECT privileges sufficient to see the row in this instance):
INSERT INTO document VALUES (33, 22, 1, 'regress_rls_bob', 'okay science fiction'); -- preparation for next statement
INSERT INTO document VALUES (33, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_bob', 'Some novel, replaces sci-fi') -- takes UPDATE path
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle;
ERROR: new row violates row-level security policy (USING expression) for table "document"
-- Fine (we UPDATE, since INSERT WCOs and UPDATE security barrier quals + WCOs
-- not violated):
INSERT INTO document VALUES (2, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_bob', 'my first novel')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle RETURNING *;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-----------------+----------------
2 | 11 | 2 | regress_rls_bob | my first novel
(1 row)
-- Fine (we INSERT, so "cid = 33" ("technology") isn't evaluated):
INSERT INTO document VALUES (78, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_bob', 'some technology novel')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle, cid = 33 RETURNING *;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-----------------+-----------------------
78 | 11 | 1 | regress_rls_bob | some technology novel
(1 row)
-- Fine (same query, but we UPDATE, so "cid = 33", ("technology") is not the
-- case in respect of *existing* tuple):
INSERT INTO document VALUES (78, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_bob', 'some technology novel')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle, cid = 33 RETURNING *;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-----------------+-----------------------
78 | 33 | 1 | regress_rls_bob | some technology novel
(1 row)
-- Same query a third time, but now fails due to existing tuple finally not
-- passing quals:
INSERT INTO document VALUES (78, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_bob', 'some technology novel')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle, cid = 33 RETURNING *;
ERROR: new row violates row-level security policy (USING expression) for table "document"
-- Don't fail just because INSERT doesn't satisfy WITH CHECK option that
-- originated as a barrier/USING() qual from the UPDATE. Note that the UPDATE
-- path *isn't* taken, and so UPDATE-related policy does not apply:
INSERT INTO document VALUES (79, (SELECT cid from category WHERE cname = 'technology'), 1, 'regress_rls_bob', 'technology book, can only insert')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle RETURNING *;
did | cid | dlevel | dauthor | dtitle
-----+-----+--------+-----------------+----------------------------------
79 | 33 | 1 | regress_rls_bob | technology book, can only insert
(1 row)
-- But this time, the same statement fails, because the UPDATE path is taken,
-- and updating the row just inserted falls afoul of security barrier qual
-- (enforced as WCO) -- what we might have updated target tuple to is
-- irrelevant, in fact.
INSERT INTO document VALUES (79, (SELECT cid from category WHERE cname = 'technology'), 1, 'regress_rls_bob', 'technology book, can only insert')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle RETURNING *;
ERROR: new row violates row-level security policy (USING expression) for table "document"
-- Test default USING qual enforced as WCO
SET SESSION AUTHORIZATION regress_rls_alice;
DROP POLICY p1 ON document;
DROP POLICY p2 ON document;
DROP POLICY p3 ON document;
CREATE POLICY p3_with_default ON document FOR UPDATE
USING (cid = (SELECT cid from category WHERE cname = 'novel'));
SET SESSION AUTHORIZATION regress_rls_bob;
-- Just because WCO-style enforcement of USING quals occurs with
-- existing/target tuple does not mean that the implementation can be allowed
-- to fail to also enforce this qual against the final tuple appended to
-- relation (since in the absence of an explicit WCO, this is also interpreted
-- as an UPDATE/ALL WCO in general).
--
-- UPDATE path is taken here (fails due to existing tuple). Note that this is
-- not reported as a "USING expression", because it's an RLS UPDATE check that originated as
-- a USING qual for the purposes of RLS in general, as opposed to an explicit
-- USING qual that is ordinarily a security barrier. We leave it up to the
-- UPDATE to make this fail:
INSERT INTO document VALUES (79, (SELECT cid from category WHERE cname = 'technology'), 1, 'regress_rls_bob', 'technology book, can only insert')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle RETURNING *;
ERROR: new row violates row-level security policy for table "document"
-- UPDATE path is taken here. Existing tuple passes, since it's cid
-- corresponds to "novel", but default USING qual is enforced against
-- post-UPDATE tuple too (as always when updating with a policy that lacks an
-- explicit WCO), and so this fails:
INSERT INTO document VALUES (2, (SELECT cid from category WHERE cname = 'technology'), 1, 'regress_rls_bob', 'my first novel')
ON CONFLICT (did) DO UPDATE SET cid = EXCLUDED.cid, dtitle = EXCLUDED.dtitle RETURNING *;
ERROR: new row violates row-level security policy for table "document"
SET SESSION AUTHORIZATION regress_rls_alice;
DROP POLICY p3_with_default ON document;
--
-- Test ALL policies with ON CONFLICT DO UPDATE (much the same as existing UPDATE
-- tests)
--
CREATE POLICY p3_with_all ON document FOR ALL
USING (cid = (SELECT cid from category WHERE cname = 'novel'))
WITH CHECK (dauthor = current_user);
SET SESSION AUTHORIZATION regress_rls_bob;
-- Fails, since ALL WCO is enforced in insert path:
INSERT INTO document VALUES (80, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_carol', 'my first novel')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle, cid = 33;
ERROR: new row violates row-level security policy for table "document"
-- Fails, since ALL policy USING qual is enforced (existing, target tuple is in
-- violation, since it has the "manga" cid):
INSERT INTO document VALUES (4, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_bob', 'my first novel')
ON CONFLICT (did) DO UPDATE SET dtitle = EXCLUDED.dtitle;
ERROR: new row violates row-level security policy (USING expression) for table "document"
-- Fails, since ALL WCO are enforced:
INSERT INTO document VALUES (1, (SELECT cid from category WHERE cname = 'novel'), 1, 'regress_rls_bob', 'my first novel')
ON CONFLICT (did) DO UPDATE SET dauthor = 'regress_rls_carol';
ERROR: new row violates row-level security policy for table "document"
--
-- ROLE/GROUP
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE z1 (a int, b text);
CREATE TABLE z2 (a int, b text);
GRANT SELECT ON z1,z2 TO regress_rls_group1, regress_rls_group2,
regress_rls_bob, regress_rls_carol;
INSERT INTO z1 VALUES
(1, 'aba'),
(2, 'bbb'),
(3, 'ccc'),
(4, 'dad');
CREATE POLICY p1 ON z1 TO regress_rls_group1 USING (a % 2 = 0);
CREATE POLICY p2 ON z1 TO regress_rls_group2 USING (a % 2 = 1);
ALTER TABLE z1 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM z1 WHERE f_leak(b);
NOTICE: f_leak => bbb
NOTICE: f_leak => dad
a | b
---+-----
2 | bbb
4 | dad
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM z1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(2 rows)
PREPARE plancache_test AS SELECT * FROM z1 WHERE f_leak(b);
EXPLAIN (COSTS OFF) EXECUTE plancache_test;
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(2 rows)
PREPARE plancache_test2 AS WITH q AS (SELECT * FROM z1 WHERE f_leak(b)) SELECT * FROM q,z2;
EXPLAIN (COSTS OFF) EXECUTE plancache_test2;
QUERY PLAN
-------------------------------------------------
Nested Loop
CTE q
-> Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
-> CTE Scan on q
-> Materialize
-> Seq Scan on z2
(7 rows)
PREPARE plancache_test3 AS WITH q AS (SELECT * FROM z2) SELECT * FROM q,z1 WHERE f_leak(z1.b);
EXPLAIN (COSTS OFF) EXECUTE plancache_test3;
QUERY PLAN
-----------------------------------------------------
Nested Loop
CTE q
-> Seq Scan on z2
-> CTE Scan on q
-> Materialize
-> Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(7 rows)
SET ROLE regress_rls_group1;
SELECT * FROM z1 WHERE f_leak(b);
NOTICE: f_leak => bbb
NOTICE: f_leak => dad
a | b
---+-----
2 | bbb
4 | dad
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM z1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(2 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test;
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(2 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test2;
QUERY PLAN
-------------------------------------------------
Nested Loop
CTE q
-> Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
-> CTE Scan on q
-> Materialize
-> Seq Scan on z2
(7 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test3;
QUERY PLAN
-----------------------------------------------------
Nested Loop
CTE q
-> Seq Scan on z2
-> CTE Scan on q
-> Materialize
-> Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(7 rows)
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM z1 WHERE f_leak(b);
NOTICE: f_leak => aba
NOTICE: f_leak => ccc
a | b
---+-----
1 | aba
3 | ccc
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM z1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 1) AND f_leak(b))
(2 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test;
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 1) AND f_leak(b))
(2 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test2;
QUERY PLAN
-------------------------------------------------
Nested Loop
CTE q
-> Seq Scan on z1
Filter: (((a % 2) = 1) AND f_leak(b))
-> CTE Scan on q
-> Materialize
-> Seq Scan on z2
(7 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test3;
QUERY PLAN
-----------------------------------------------------
Nested Loop
CTE q
-> Seq Scan on z2
-> CTE Scan on q
-> Materialize
-> Seq Scan on z1
Filter: (((a % 2) = 1) AND f_leak(b))
(7 rows)
SET ROLE regress_rls_group2;
SELECT * FROM z1 WHERE f_leak(b);
NOTICE: f_leak => aba
NOTICE: f_leak => ccc
a | b
---+-----
1 | aba
3 | ccc
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM z1 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 1) AND f_leak(b))
(2 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test;
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 1) AND f_leak(b))
(2 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test2;
QUERY PLAN
-------------------------------------------------
Nested Loop
CTE q
-> Seq Scan on z1
Filter: (((a % 2) = 1) AND f_leak(b))
-> CTE Scan on q
-> Materialize
-> Seq Scan on z2
(7 rows)
EXPLAIN (COSTS OFF) EXECUTE plancache_test3;
QUERY PLAN
-----------------------------------------------------
Nested Loop
CTE q
-> Seq Scan on z2
-> CTE Scan on q
-> Materialize
-> Seq Scan on z1
Filter: (((a % 2) = 1) AND f_leak(b))
(7 rows)
--
-- Views should follow policy for view owner.
--
-- View and Table owner are the same.
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE VIEW rls_view AS SELECT * FROM z1 WHERE f_leak(b);
GRANT SELECT ON rls_view TO regress_rls_bob;
-- Query as role that is not owner of view or table. Should return all records.
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM rls_view;
NOTICE: f_leak => aba
NOTICE: f_leak => bbb
NOTICE: f_leak => ccc
NOTICE: f_leak => dad
a | b
---+-----
1 | aba
2 | bbb
3 | ccc
4 | dad
(4 rows)
EXPLAIN (COSTS OFF) SELECT * FROM rls_view;
QUERY PLAN
---------------------
Seq Scan on z1
Filter: f_leak(b)
(2 rows)
-- Query as view/table owner. Should return all records.
SET SESSION AUTHORIZATION regress_rls_alice;
SELECT * FROM rls_view;
NOTICE: f_leak => aba
NOTICE: f_leak => bbb
NOTICE: f_leak => ccc
NOTICE: f_leak => dad
a | b
---+-----
1 | aba
2 | bbb
3 | ccc
4 | dad
(4 rows)
EXPLAIN (COSTS OFF) SELECT * FROM rls_view;
QUERY PLAN
---------------------
Seq Scan on z1
Filter: f_leak(b)
(2 rows)
DROP VIEW rls_view;
-- View and Table owners are different.
SET SESSION AUTHORIZATION regress_rls_bob;
CREATE VIEW rls_view AS SELECT * FROM z1 WHERE f_leak(b);
GRANT SELECT ON rls_view TO regress_rls_alice;
-- Query as role that is not owner of view but is owner of table.
-- Should return records based on view owner policies.
SET SESSION AUTHORIZATION regress_rls_alice;
SELECT * FROM rls_view;
NOTICE: f_leak => bbb
NOTICE: f_leak => dad
a | b
---+-----
2 | bbb
4 | dad
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM rls_view;
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(2 rows)
-- Query as role that is not owner of table but is owner of view.
-- Should return records based on view owner policies.
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM rls_view;
NOTICE: f_leak => bbb
NOTICE: f_leak => dad
a | b
---+-----
2 | bbb
4 | dad
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM rls_view;
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(2 rows)
-- Query as role that is not the owner of the table or view without permissions.
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM rls_view; --fail - permission denied.
ERROR: permission denied for relation rls_view
EXPLAIN (COSTS OFF) SELECT * FROM rls_view; --fail - permission denied.
ERROR: permission denied for relation rls_view
-- Query as role that is not the owner of the table or view with permissions.
SET SESSION AUTHORIZATION regress_rls_bob;
GRANT SELECT ON rls_view TO regress_rls_carol;
SELECT * FROM rls_view;
NOTICE: f_leak => bbb
NOTICE: f_leak => dad
a | b
---+-----
2 | bbb
4 | dad
(2 rows)
EXPLAIN (COSTS OFF) SELECT * FROM rls_view;
QUERY PLAN
-----------------------------------------
Seq Scan on z1
Filter: (((a % 2) = 0) AND f_leak(b))
(2 rows)
SET SESSION AUTHORIZATION regress_rls_bob;
DROP VIEW rls_view;
--
-- Command specific
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE x1 (a int, b text, c text);
GRANT ALL ON x1 TO PUBLIC;
INSERT INTO x1 VALUES
(1, 'abc', 'regress_rls_bob'),
(2, 'bcd', 'regress_rls_bob'),
(3, 'cde', 'regress_rls_carol'),
(4, 'def', 'regress_rls_carol'),
(5, 'efg', 'regress_rls_bob'),
(6, 'fgh', 'regress_rls_bob'),
(7, 'fgh', 'regress_rls_carol'),
(8, 'fgh', 'regress_rls_carol');
CREATE POLICY p0 ON x1 FOR ALL USING (c = current_user);
CREATE POLICY p1 ON x1 FOR SELECT USING (a % 2 = 0);
CREATE POLICY p2 ON x1 FOR INSERT WITH CHECK (a % 2 = 1);
CREATE POLICY p3 ON x1 FOR UPDATE USING (a % 2 = 0);
CREATE POLICY p4 ON x1 FOR DELETE USING (a < 8);
ALTER TABLE x1 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM x1 WHERE f_leak(b) ORDER BY a ASC;
NOTICE: f_leak => abc
NOTICE: f_leak => bcd
NOTICE: f_leak => def
NOTICE: f_leak => efg
NOTICE: f_leak => fgh
NOTICE: f_leak => fgh
a | b | c
---+-----+-------------------
1 | abc | regress_rls_bob
2 | bcd | regress_rls_bob
4 | def | regress_rls_carol
5 | efg | regress_rls_bob
6 | fgh | regress_rls_bob
8 | fgh | regress_rls_carol
(6 rows)
UPDATE x1 SET b = b || '_updt' WHERE f_leak(b) RETURNING *;
NOTICE: f_leak => abc
NOTICE: f_leak => bcd
NOTICE: f_leak => def
NOTICE: f_leak => efg
NOTICE: f_leak => fgh
NOTICE: f_leak => fgh
a | b | c
---+----------+-------------------
1 | abc_updt | regress_rls_bob
2 | bcd_updt | regress_rls_bob
4 | def_updt | regress_rls_carol
5 | efg_updt | regress_rls_bob
6 | fgh_updt | regress_rls_bob
8 | fgh_updt | regress_rls_carol
(6 rows)
SET SESSION AUTHORIZATION regress_rls_carol;
SELECT * FROM x1 WHERE f_leak(b) ORDER BY a ASC;
NOTICE: f_leak => cde
NOTICE: f_leak => fgh
NOTICE: f_leak => bcd_updt
NOTICE: f_leak => def_updt
NOTICE: f_leak => fgh_updt
NOTICE: f_leak => fgh_updt
a | b | c
---+----------+-------------------
2 | bcd_updt | regress_rls_bob
3 | cde | regress_rls_carol
4 | def_updt | regress_rls_carol
6 | fgh_updt | regress_rls_bob
7 | fgh | regress_rls_carol
8 | fgh_updt | regress_rls_carol
(6 rows)
UPDATE x1 SET b = b || '_updt' WHERE f_leak(b) RETURNING *;
NOTICE: f_leak => cde
NOTICE: f_leak => fgh
NOTICE: f_leak => bcd_updt
NOTICE: f_leak => def_updt
NOTICE: f_leak => fgh_updt
NOTICE: f_leak => fgh_updt
a | b | c
---+---------------+-------------------
3 | cde_updt | regress_rls_carol
7 | fgh_updt | regress_rls_carol
2 | bcd_updt_updt | regress_rls_bob
4 | def_updt_updt | regress_rls_carol
6 | fgh_updt_updt | regress_rls_bob
8 | fgh_updt_updt | regress_rls_carol
(6 rows)
DELETE FROM x1 WHERE f_leak(b) RETURNING *;
NOTICE: f_leak => cde_updt
NOTICE: f_leak => fgh_updt
NOTICE: f_leak => bcd_updt_updt
NOTICE: f_leak => def_updt_updt
NOTICE: f_leak => fgh_updt_updt
NOTICE: f_leak => fgh_updt_updt
a | b | c
---+---------------+-------------------
3 | cde_updt | regress_rls_carol
7 | fgh_updt | regress_rls_carol
2 | bcd_updt_updt | regress_rls_bob
4 | def_updt_updt | regress_rls_carol
6 | fgh_updt_updt | regress_rls_bob
8 | fgh_updt_updt | regress_rls_carol
(6 rows)
--
-- Duplicate Policy Names
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE y1 (a int, b text);
CREATE TABLE y2 (a int, b text);
GRANT ALL ON y1, y2 TO regress_rls_bob;
CREATE POLICY p1 ON y1 FOR ALL USING (a % 2 = 0);
CREATE POLICY p2 ON y1 FOR SELECT USING (a > 2);
CREATE POLICY p1 ON y1 FOR SELECT USING (a % 2 = 1); --fail
ERROR: policy "p1" for table "y1" already exists
CREATE POLICY p1 ON y2 FOR ALL USING (a % 2 = 0); --OK
ALTER TABLE y1 ENABLE ROW LEVEL SECURITY;
ALTER TABLE y2 ENABLE ROW LEVEL SECURITY;
--
-- Expression structure with SBV
--
-- Create view as table owner. RLS should NOT be applied.
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE VIEW rls_sbv WITH (security_barrier) AS
SELECT * FROM y1 WHERE f_leak(b);
EXPLAIN (COSTS OFF) SELECT * FROM rls_sbv WHERE (a = 1);
QUERY PLAN
-----------------------------------
Seq Scan on y1
Filter: (f_leak(b) AND (a = 1))
(2 rows)
DROP VIEW rls_sbv;
-- Create view as role that does not own table. RLS should be applied.
SET SESSION AUTHORIZATION regress_rls_bob;
CREATE VIEW rls_sbv WITH (security_barrier) AS
SELECT * FROM y1 WHERE f_leak(b);
EXPLAIN (COSTS OFF) SELECT * FROM rls_sbv WHERE (a = 1);
QUERY PLAN
------------------------------------------------------------------
Seq Scan on y1
Filter: ((a = 1) AND ((a > 2) OR ((a % 2) = 0)) AND f_leak(b))
(2 rows)
DROP VIEW rls_sbv;
--
-- Expression structure
--
SET SESSION AUTHORIZATION regress_rls_alice;
INSERT INTO y2 (SELECT x, md5(x::text) FROM generate_series(0,20) x);
CREATE POLICY p2 ON y2 USING (a % 3 = 0);
CREATE POLICY p3 ON y2 USING (a % 4 = 0);
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM y2 WHERE f_leak(b);
NOTICE: f_leak => cfcd208495d565ef66e7dff9f98764da
NOTICE: f_leak => c81e728d9d4c2f636f067f89cc14862c
NOTICE: f_leak => eccbc87e4b5ce2fe28308fd9f2a7baf3
NOTICE: f_leak => a87ff679a2f3e71d9181a67b7542122c
NOTICE: f_leak => 1679091c5a880faf6fb5e6087eb1b2dc
NOTICE: f_leak => c9f0f895fb98ab9159f51fd0297e236d
NOTICE: f_leak => 45c48cce2e2d7fbdea1afc51c7c6ad26
NOTICE: f_leak => d3d9446802a44259755d38e6d163e820
NOTICE: f_leak => c20ad4d76fe97759aa27a0c99bff6710
NOTICE: f_leak => aab3238922bcc25a6f606eb525ffdc56
NOTICE: f_leak => 9bf31c7ff062936a96d3c8bd1f8f2ff3
NOTICE: f_leak => c74d97b01eae257e44aa9d5bade97baf
NOTICE: f_leak => 6f4922f45568161a8cdf4ad2299f6d23
NOTICE: f_leak => 98f13708210194c475687be6106a3b84
a | b
----+----------------------------------
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
3 | eccbc87e4b5ce2fe28308fd9f2a7baf3
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
9 | 45c48cce2e2d7fbdea1afc51c7c6ad26
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
15 | 9bf31c7ff062936a96d3c8bd1f8f2ff3
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
(14 rows)
EXPLAIN (COSTS OFF) SELECT * FROM y2 WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------------------------------------
Seq Scan on y2
Filter: ((((a % 4) = 0) OR ((a % 3) = 0) OR ((a % 2) = 0)) AND f_leak(b))
(2 rows)
--
-- Qual push-down of leaky functions, when not referring to table
--
SELECT * FROM y2 WHERE f_leak('abc');
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
NOTICE: f_leak => abc
a | b
----+----------------------------------
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
3 | eccbc87e4b5ce2fe28308fd9f2a7baf3
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
9 | 45c48cce2e2d7fbdea1afc51c7c6ad26
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
15 | 9bf31c7ff062936a96d3c8bd1f8f2ff3
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
(14 rows)
EXPLAIN (COSTS OFF) SELECT * FROM y2 WHERE f_leak('abc');
QUERY PLAN
---------------------------------------------------------------------------------------
Seq Scan on y2
Filter: (f_leak('abc'::text) AND (((a % 4) = 0) OR ((a % 3) = 0) OR ((a % 2) = 0)))
(2 rows)
CREATE TABLE test_qual_pushdown (
abc text
);
INSERT INTO test_qual_pushdown VALUES ('abc'),('def');
SELECT * FROM y2 JOIN test_qual_pushdown ON (b = abc) WHERE f_leak(abc);
NOTICE: f_leak => abc
NOTICE: f_leak => def
a | b | abc
---+---+-----
(0 rows)
EXPLAIN (COSTS OFF) SELECT * FROM y2 JOIN test_qual_pushdown ON (b = abc) WHERE f_leak(abc);
QUERY PLAN
-------------------------------------------------------------------------
Hash Join
Hash Cond: (test_qual_pushdown.abc = y2.b)
-> Seq Scan on test_qual_pushdown
Filter: f_leak(abc)
-> Hash
-> Seq Scan on y2
Filter: (((a % 4) = 0) OR ((a % 3) = 0) OR ((a % 2) = 0))
(7 rows)
SELECT * FROM y2 JOIN test_qual_pushdown ON (b = abc) WHERE f_leak(b);
NOTICE: f_leak => cfcd208495d565ef66e7dff9f98764da
NOTICE: f_leak => c81e728d9d4c2f636f067f89cc14862c
NOTICE: f_leak => eccbc87e4b5ce2fe28308fd9f2a7baf3
NOTICE: f_leak => a87ff679a2f3e71d9181a67b7542122c
NOTICE: f_leak => 1679091c5a880faf6fb5e6087eb1b2dc
NOTICE: f_leak => c9f0f895fb98ab9159f51fd0297e236d
NOTICE: f_leak => 45c48cce2e2d7fbdea1afc51c7c6ad26
NOTICE: f_leak => d3d9446802a44259755d38e6d163e820
NOTICE: f_leak => c20ad4d76fe97759aa27a0c99bff6710
NOTICE: f_leak => aab3238922bcc25a6f606eb525ffdc56
NOTICE: f_leak => 9bf31c7ff062936a96d3c8bd1f8f2ff3
NOTICE: f_leak => c74d97b01eae257e44aa9d5bade97baf
NOTICE: f_leak => 6f4922f45568161a8cdf4ad2299f6d23
NOTICE: f_leak => 98f13708210194c475687be6106a3b84
a | b | abc
---+---+-----
(0 rows)
EXPLAIN (COSTS OFF) SELECT * FROM y2 JOIN test_qual_pushdown ON (b = abc) WHERE f_leak(b);
QUERY PLAN
-----------------------------------------------------------------------------------------
Hash Join
Hash Cond: (test_qual_pushdown.abc = y2.b)
-> Seq Scan on test_qual_pushdown
-> Hash
-> Seq Scan on y2
Filter: ((((a % 4) = 0) OR ((a % 3) = 0) OR ((a % 2) = 0)) AND f_leak(b))
(6 rows)
DROP TABLE test_qual_pushdown;
--
-- Plancache invalidate on user change.
--
RESET SESSION AUTHORIZATION;
\set VERBOSITY terse \\ -- suppress cascade details
DROP TABLE t1 CASCADE;
NOTICE: drop cascades to 2 other objects
\set VERBOSITY default
CREATE TABLE t1 (a integer);
GRANT SELECT ON t1 TO regress_rls_bob, regress_rls_carol;
CREATE POLICY p1 ON t1 TO regress_rls_bob USING ((a % 2) = 0);
CREATE POLICY p2 ON t1 TO regress_rls_carol USING ((a % 4) = 0);
ALTER TABLE t1 ENABLE ROW LEVEL SECURITY;
-- Prepare as regress_rls_bob
SET ROLE regress_rls_bob;
PREPARE role_inval AS SELECT * FROM t1;
-- Check plan
EXPLAIN (COSTS OFF) EXECUTE role_inval;
QUERY PLAN
-------------------------
Seq Scan on t1
Filter: ((a % 2) = 0)
(2 rows)
-- Change to regress_rls_carol
SET ROLE regress_rls_carol;
-- Check plan- should be different
EXPLAIN (COSTS OFF) EXECUTE role_inval;
QUERY PLAN
-------------------------
Seq Scan on t1
Filter: ((a % 4) = 0)
(2 rows)
-- Change back to regress_rls_bob
SET ROLE regress_rls_bob;
-- Check plan- should be back to original
EXPLAIN (COSTS OFF) EXECUTE role_inval;
QUERY PLAN
-------------------------
Seq Scan on t1
Filter: ((a % 2) = 0)
(2 rows)
--
-- CTE and RLS
--
RESET SESSION AUTHORIZATION;
DROP TABLE t1 CASCADE;
CREATE TABLE t1 (a integer, b text);
CREATE POLICY p1 ON t1 USING (a % 2 = 0);
ALTER TABLE t1 ENABLE ROW LEVEL SECURITY;
GRANT ALL ON t1 TO regress_rls_bob;
INSERT INTO t1 (SELECT x, md5(x::text) FROM generate_series(0,20) x);
SET SESSION AUTHORIZATION regress_rls_bob;
WITH cte1 AS (SELECT * FROM t1 WHERE f_leak(b)) SELECT * FROM cte1;
NOTICE: f_leak => cfcd208495d565ef66e7dff9f98764da
NOTICE: f_leak => c81e728d9d4c2f636f067f89cc14862c
NOTICE: f_leak => a87ff679a2f3e71d9181a67b7542122c
NOTICE: f_leak => 1679091c5a880faf6fb5e6087eb1b2dc
NOTICE: f_leak => c9f0f895fb98ab9159f51fd0297e236d
NOTICE: f_leak => d3d9446802a44259755d38e6d163e820
NOTICE: f_leak => c20ad4d76fe97759aa27a0c99bff6710
NOTICE: f_leak => aab3238922bcc25a6f606eb525ffdc56
NOTICE: f_leak => c74d97b01eae257e44aa9d5bade97baf
NOTICE: f_leak => 6f4922f45568161a8cdf4ad2299f6d23
NOTICE: f_leak => 98f13708210194c475687be6106a3b84
a | b
----+----------------------------------
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
(11 rows)
EXPLAIN (COSTS OFF) WITH cte1 AS (SELECT * FROM t1 WHERE f_leak(b)) SELECT * FROM cte1;
QUERY PLAN
-------------------------------------------------
CTE Scan on cte1
CTE cte1
-> Seq Scan on t1
Filter: (((a % 2) = 0) AND f_leak(b))
(4 rows)
WITH cte1 AS (UPDATE t1 SET a = a + 1 RETURNING *) SELECT * FROM cte1; --fail
ERROR: new row violates row-level security policy for table "t1"
WITH cte1 AS (UPDATE t1 SET a = a RETURNING *) SELECT * FROM cte1; --ok
a | b
----+----------------------------------
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
(11 rows)
WITH cte1 AS (INSERT INTO t1 VALUES (21, 'Fail') RETURNING *) SELECT * FROM cte1; --fail
ERROR: new row violates row-level security policy for table "t1"
WITH cte1 AS (INSERT INTO t1 VALUES (20, 'Success') RETURNING *) SELECT * FROM cte1; --ok
a | b
----+---------
20 | Success
(1 row)
--
-- Rename Policy
--
RESET SESSION AUTHORIZATION;
ALTER POLICY p1 ON t1 RENAME TO p1; --fail
ERROR: policy "p1" for table "t1" already exists
SELECT polname, relname
FROM pg_policy pol
JOIN pg_class pc ON (pc.oid = pol.polrelid)
WHERE relname = 't1';
polname | relname
---------+---------
p1 | t1
(1 row)
ALTER POLICY p1 ON t1 RENAME TO p2; --ok
SELECT polname, relname
FROM pg_policy pol
JOIN pg_class pc ON (pc.oid = pol.polrelid)
WHERE relname = 't1';
polname | relname
---------+---------
p2 | t1
(1 row)
--
-- Check INSERT SELECT
--
SET SESSION AUTHORIZATION regress_rls_bob;
CREATE TABLE t2 (a integer, b text);
INSERT INTO t2 (SELECT * FROM t1);
EXPLAIN (COSTS OFF) INSERT INTO t2 (SELECT * FROM t1);
QUERY PLAN
-------------------------------
Insert on t2
-> Seq Scan on t1
Filter: ((a % 2) = 0)
(3 rows)
SELECT * FROM t2;
a | b
----+----------------------------------
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
20 | Success
(12 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t2;
QUERY PLAN
----------------
Seq Scan on t2
(1 row)
CREATE TABLE t3 AS SELECT * FROM t1;
SELECT * FROM t3;
a | b
----+----------------------------------
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
20 | Success
(12 rows)
SELECT * INTO t4 FROM t1;
SELECT * FROM t4;
a | b
----+----------------------------------
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
20 | Success
(12 rows)
--
-- RLS with JOIN
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE blog (id integer, author text, post text);
CREATE TABLE comment (blog_id integer, message text);
GRANT ALL ON blog, comment TO regress_rls_bob;
CREATE POLICY blog_1 ON blog USING (id % 2 = 0);
ALTER TABLE blog ENABLE ROW LEVEL SECURITY;
INSERT INTO blog VALUES
(1, 'alice', 'blog #1'),
(2, 'bob', 'blog #1'),
(3, 'alice', 'blog #2'),
(4, 'alice', 'blog #3'),
(5, 'john', 'blog #1');
INSERT INTO comment VALUES
(1, 'cool blog'),
(1, 'fun blog'),
(3, 'crazy blog'),
(5, 'what?'),
(4, 'insane!'),
(2, 'who did it?');
SET SESSION AUTHORIZATION regress_rls_bob;
-- Check RLS JOIN with Non-RLS.
SELECT id, author, message FROM blog JOIN comment ON id = blog_id;
id | author | message
----+--------+-------------
4 | alice | insane!
2 | bob | who did it?
(2 rows)
-- Check Non-RLS JOIN with RLS.
SELECT id, author, message FROM comment JOIN blog ON id = blog_id;
id | author | message
----+--------+-------------
4 | alice | insane!
2 | bob | who did it?
(2 rows)
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE POLICY comment_1 ON comment USING (blog_id < 4);
ALTER TABLE comment ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
-- Check RLS JOIN RLS
SELECT id, author, message FROM blog JOIN comment ON id = blog_id;
id | author | message
----+--------+-------------
2 | bob | who did it?
(1 row)
SELECT id, author, message FROM comment JOIN blog ON id = blog_id;
id | author | message
----+--------+-------------
2 | bob | who did it?
(1 row)
SET SESSION AUTHORIZATION regress_rls_alice;
DROP TABLE blog, comment;
--
-- Default Deny Policy
--
RESET SESSION AUTHORIZATION;
DROP POLICY p2 ON t1;
ALTER TABLE t1 OWNER TO regress_rls_alice;
-- Check that default deny does not apply to superuser.
RESET SESSION AUTHORIZATION;
SELECT * FROM t1;
a | b
----+----------------------------------
1 | c4ca4238a0b923820dcc509a6f75849b
3 | eccbc87e4b5ce2fe28308fd9f2a7baf3
5 | e4da3b7fbbce2345d7772b0674a318d5
7 | 8f14e45fceea167a5a36dedd4bea2543
9 | 45c48cce2e2d7fbdea1afc51c7c6ad26
11 | 6512bd43d9caa6e02c990b0a82652dca
13 | c51ce410c124a10e0db5e4b97fc2af39
15 | 9bf31c7ff062936a96d3c8bd1f8f2ff3
17 | 70efdf2ec9b086079795c442636b55fb
19 | 1f0e3dad99908345f7439f8ffabdffc4
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
20 | Success
(22 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1;
QUERY PLAN
----------------
Seq Scan on t1
(1 row)
-- Check that default deny does not apply to table owner.
SET SESSION AUTHORIZATION regress_rls_alice;
SELECT * FROM t1;
a | b
----+----------------------------------
1 | c4ca4238a0b923820dcc509a6f75849b
3 | eccbc87e4b5ce2fe28308fd9f2a7baf3
5 | e4da3b7fbbce2345d7772b0674a318d5
7 | 8f14e45fceea167a5a36dedd4bea2543
9 | 45c48cce2e2d7fbdea1afc51c7c6ad26
11 | 6512bd43d9caa6e02c990b0a82652dca
13 | c51ce410c124a10e0db5e4b97fc2af39
15 | 9bf31c7ff062936a96d3c8bd1f8f2ff3
17 | 70efdf2ec9b086079795c442636b55fb
19 | 1f0e3dad99908345f7439f8ffabdffc4
0 | cfcd208495d565ef66e7dff9f98764da
2 | c81e728d9d4c2f636f067f89cc14862c
4 | a87ff679a2f3e71d9181a67b7542122c
6 | 1679091c5a880faf6fb5e6087eb1b2dc
8 | c9f0f895fb98ab9159f51fd0297e236d
10 | d3d9446802a44259755d38e6d163e820
12 | c20ad4d76fe97759aa27a0c99bff6710
14 | aab3238922bcc25a6f606eb525ffdc56
16 | c74d97b01eae257e44aa9d5bade97baf
18 | 6f4922f45568161a8cdf4ad2299f6d23
20 | 98f13708210194c475687be6106a3b84
20 | Success
(22 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1;
QUERY PLAN
----------------
Seq Scan on t1
(1 row)
-- Check that default deny applies to non-owner/non-superuser when RLS on.
SET SESSION AUTHORIZATION regress_rls_bob;
SET row_security TO ON;
SELECT * FROM t1;
a | b
---+---
(0 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1;
QUERY PLAN
--------------------------
Result
One-Time Filter: false
(2 rows)
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM t1;
a | b
---+---
(0 rows)
EXPLAIN (COSTS OFF) SELECT * FROM t1;
QUERY PLAN
--------------------------
Result
One-Time Filter: false
(2 rows)
--
-- COPY TO/FROM
--
RESET SESSION AUTHORIZATION;
DROP TABLE copy_t CASCADE;
ERROR: table "copy_t" does not exist
CREATE TABLE copy_t (a integer, b text);
CREATE POLICY p1 ON copy_t USING (a % 2 = 0);
ALTER TABLE copy_t ENABLE ROW LEVEL SECURITY;
GRANT ALL ON copy_t TO regress_rls_bob, regress_rls_exempt_user;
INSERT INTO copy_t (SELECT x, md5(x::text) FROM generate_series(0,10) x);
-- Check COPY TO as Superuser/owner.
RESET SESSION AUTHORIZATION;
SET row_security TO OFF;
COPY (SELECT * FROM copy_t ORDER BY a ASC) TO STDOUT WITH DELIMITER ',';
0,cfcd208495d565ef66e7dff9f98764da
1,c4ca4238a0b923820dcc509a6f75849b
2,c81e728d9d4c2f636f067f89cc14862c
3,eccbc87e4b5ce2fe28308fd9f2a7baf3
4,a87ff679a2f3e71d9181a67b7542122c
5,e4da3b7fbbce2345d7772b0674a318d5
6,1679091c5a880faf6fb5e6087eb1b2dc
7,8f14e45fceea167a5a36dedd4bea2543
8,c9f0f895fb98ab9159f51fd0297e236d
9,45c48cce2e2d7fbdea1afc51c7c6ad26
10,d3d9446802a44259755d38e6d163e820
SET row_security TO ON;
COPY (SELECT * FROM copy_t ORDER BY a ASC) TO STDOUT WITH DELIMITER ',';
0,cfcd208495d565ef66e7dff9f98764da
1,c4ca4238a0b923820dcc509a6f75849b
2,c81e728d9d4c2f636f067f89cc14862c
3,eccbc87e4b5ce2fe28308fd9f2a7baf3
4,a87ff679a2f3e71d9181a67b7542122c
5,e4da3b7fbbce2345d7772b0674a318d5
6,1679091c5a880faf6fb5e6087eb1b2dc
7,8f14e45fceea167a5a36dedd4bea2543
8,c9f0f895fb98ab9159f51fd0297e236d
9,45c48cce2e2d7fbdea1afc51c7c6ad26
10,d3d9446802a44259755d38e6d163e820
-- Check COPY TO as user with permissions.
SET SESSION AUTHORIZATION regress_rls_bob;
SET row_security TO OFF;
COPY (SELECT * FROM copy_t ORDER BY a ASC) TO STDOUT WITH DELIMITER ','; --fail - would be affected by RLS
ERROR: query would be affected by row-level security policy for table "copy_t"
SET row_security TO ON;
COPY (SELECT * FROM copy_t ORDER BY a ASC) TO STDOUT WITH DELIMITER ','; --ok
0,cfcd208495d565ef66e7dff9f98764da
2,c81e728d9d4c2f636f067f89cc14862c
4,a87ff679a2f3e71d9181a67b7542122c
6,1679091c5a880faf6fb5e6087eb1b2dc
8,c9f0f895fb98ab9159f51fd0297e236d
10,d3d9446802a44259755d38e6d163e820
-- Check COPY TO as user with permissions and BYPASSRLS
SET SESSION AUTHORIZATION regress_rls_exempt_user;
SET row_security TO OFF;
COPY (SELECT * FROM copy_t ORDER BY a ASC) TO STDOUT WITH DELIMITER ','; --ok
0,cfcd208495d565ef66e7dff9f98764da
1,c4ca4238a0b923820dcc509a6f75849b
2,c81e728d9d4c2f636f067f89cc14862c
3,eccbc87e4b5ce2fe28308fd9f2a7baf3
4,a87ff679a2f3e71d9181a67b7542122c
5,e4da3b7fbbce2345d7772b0674a318d5
6,1679091c5a880faf6fb5e6087eb1b2dc
7,8f14e45fceea167a5a36dedd4bea2543
8,c9f0f895fb98ab9159f51fd0297e236d
9,45c48cce2e2d7fbdea1afc51c7c6ad26
10,d3d9446802a44259755d38e6d163e820
SET row_security TO ON;
COPY (SELECT * FROM copy_t ORDER BY a ASC) TO STDOUT WITH DELIMITER ','; --ok
0,cfcd208495d565ef66e7dff9f98764da
1,c4ca4238a0b923820dcc509a6f75849b
2,c81e728d9d4c2f636f067f89cc14862c
3,eccbc87e4b5ce2fe28308fd9f2a7baf3
4,a87ff679a2f3e71d9181a67b7542122c
5,e4da3b7fbbce2345d7772b0674a318d5
6,1679091c5a880faf6fb5e6087eb1b2dc
7,8f14e45fceea167a5a36dedd4bea2543
8,c9f0f895fb98ab9159f51fd0297e236d
9,45c48cce2e2d7fbdea1afc51c7c6ad26
10,d3d9446802a44259755d38e6d163e820
-- Check COPY TO as user without permissions. SET row_security TO OFF;
SET SESSION AUTHORIZATION regress_rls_carol;
SET row_security TO OFF;
COPY (SELECT * FROM copy_t ORDER BY a ASC) TO STDOUT WITH DELIMITER ','; --fail - would be affected by RLS
ERROR: query would be affected by row-level security policy for table "copy_t"
SET row_security TO ON;
COPY (SELECT * FROM copy_t ORDER BY a ASC) TO STDOUT WITH DELIMITER ','; --fail - permission denied
ERROR: permission denied for relation copy_t
-- Check COPY relation TO; keep it just one row to avoid reordering issues
RESET SESSION AUTHORIZATION;
SET row_security TO ON;
CREATE TABLE copy_rel_to (a integer, b text);
CREATE POLICY p1 ON copy_rel_to USING (a % 2 = 0);
ALTER TABLE copy_rel_to ENABLE ROW LEVEL SECURITY;
GRANT ALL ON copy_rel_to TO regress_rls_bob, regress_rls_exempt_user;
INSERT INTO copy_rel_to VALUES (1, md5('1'));
-- Check COPY TO as Superuser/owner.
RESET SESSION AUTHORIZATION;
SET row_security TO OFF;
COPY copy_rel_to TO STDOUT WITH DELIMITER ',';
1,c4ca4238a0b923820dcc509a6f75849b
SET row_security TO ON;
COPY copy_rel_to TO STDOUT WITH DELIMITER ',';
1,c4ca4238a0b923820dcc509a6f75849b
-- Check COPY TO as user with permissions.
SET SESSION AUTHORIZATION regress_rls_bob;
SET row_security TO OFF;
COPY copy_rel_to TO STDOUT WITH DELIMITER ','; --fail - would be affected by RLS
ERROR: query would be affected by row-level security policy for table "copy_rel_to"
SET row_security TO ON;
COPY copy_rel_to TO STDOUT WITH DELIMITER ','; --ok
-- Check COPY TO as user with permissions and BYPASSRLS
SET SESSION AUTHORIZATION regress_rls_exempt_user;
SET row_security TO OFF;
COPY copy_rel_to TO STDOUT WITH DELIMITER ','; --ok
1,c4ca4238a0b923820dcc509a6f75849b
SET row_security TO ON;
COPY copy_rel_to TO STDOUT WITH DELIMITER ','; --ok
1,c4ca4238a0b923820dcc509a6f75849b
-- Check COPY TO as user without permissions. SET row_security TO OFF;
SET SESSION AUTHORIZATION regress_rls_carol;
SET row_security TO OFF;
COPY copy_rel_to TO STDOUT WITH DELIMITER ','; --fail - permission denied
ERROR: permission denied for relation copy_rel_to
SET row_security TO ON;
COPY copy_rel_to TO STDOUT WITH DELIMITER ','; --fail - permission denied
ERROR: permission denied for relation copy_rel_to
-- Check COPY FROM as Superuser/owner.
RESET SESSION AUTHORIZATION;
SET row_security TO OFF;
COPY copy_t FROM STDIN; --ok
SET row_security TO ON;
COPY copy_t FROM STDIN; --ok
-- Check COPY FROM as user with permissions.
SET SESSION AUTHORIZATION regress_rls_bob;
SET row_security TO OFF;
COPY copy_t FROM STDIN; --fail - would be affected by RLS.
ERROR: query would be affected by row-level security policy for table "copy_t"
SET row_security TO ON;
COPY copy_t FROM STDIN; --fail - COPY FROM not supported by RLS.
ERROR: COPY FROM not supported with row-level security
HINT: Use INSERT statements instead.
-- Check COPY FROM as user with permissions and BYPASSRLS
SET SESSION AUTHORIZATION regress_rls_exempt_user;
SET row_security TO ON;
COPY copy_t FROM STDIN; --ok
-- Check COPY FROM as user without permissions.
SET SESSION AUTHORIZATION regress_rls_carol;
SET row_security TO OFF;
COPY copy_t FROM STDIN; --fail - permission denied.
ERROR: permission denied for relation copy_t
SET row_security TO ON;
COPY copy_t FROM STDIN; --fail - permission denied.
ERROR: permission denied for relation copy_t
RESET SESSION AUTHORIZATION;
DROP TABLE copy_t;
DROP TABLE copy_rel_to CASCADE;
-- Check WHERE CURRENT OF
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE current_check (currentid int, payload text, rlsuser text);
GRANT ALL ON current_check TO PUBLIC;
INSERT INTO current_check VALUES
(1, 'abc', 'regress_rls_bob'),
(2, 'bcd', 'regress_rls_bob'),
(3, 'cde', 'regress_rls_bob'),
(4, 'def', 'regress_rls_bob');
CREATE POLICY p1 ON current_check FOR SELECT USING (currentid % 2 = 0);
CREATE POLICY p2 ON current_check FOR DELETE USING (currentid = 4 AND rlsuser = current_user);
CREATE POLICY p3 ON current_check FOR UPDATE USING (currentid = 4) WITH CHECK (rlsuser = current_user);
ALTER TABLE current_check ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
-- Can SELECT even rows
SELECT * FROM current_check;
currentid | payload | rlsuser
-----------+---------+-----------------
2 | bcd | regress_rls_bob
4 | def | regress_rls_bob
(2 rows)
-- Cannot UPDATE row 2
UPDATE current_check SET payload = payload || '_new' WHERE currentid = 2 RETURNING *;
currentid | payload | rlsuser
-----------+---------+---------
(0 rows)
BEGIN;
DECLARE current_check_cursor SCROLL CURSOR FOR SELECT * FROM current_check;
-- Returns rows that can be seen according to SELECT policy, like plain SELECT
-- above (even rows)
FETCH ABSOLUTE 1 FROM current_check_cursor;
currentid | payload | rlsuser
-----------+---------+-----------------
2 | bcd | regress_rls_bob
(1 row)
-- Still cannot UPDATE row 2 through cursor
UPDATE current_check SET payload = payload || '_new' WHERE CURRENT OF current_check_cursor RETURNING *;
currentid | payload | rlsuser
-----------+---------+---------
(0 rows)
-- Can update row 4 through cursor, which is the next visible row
FETCH RELATIVE 1 FROM current_check_cursor;
currentid | payload | rlsuser
-----------+---------+-----------------
4 | def | regress_rls_bob
(1 row)
UPDATE current_check SET payload = payload || '_new' WHERE CURRENT OF current_check_cursor RETURNING *;
currentid | payload | rlsuser
-----------+---------+-----------------
4 | def_new | regress_rls_bob
(1 row)
SELECT * FROM current_check;
currentid | payload | rlsuser
-----------+---------+-----------------
2 | bcd | regress_rls_bob
4 | def_new | regress_rls_bob
(2 rows)
-- Plan should be a subquery TID scan
EXPLAIN (COSTS OFF) UPDATE current_check SET payload = payload WHERE CURRENT OF current_check_cursor;
QUERY PLAN
-------------------------------------------------------------
Update on current_check
-> Tid Scan on current_check
TID Cond: CURRENT OF current_check_cursor
Filter: ((currentid = 4) AND ((currentid % 2) = 0))
(4 rows)
-- Similarly can only delete row 4
FETCH ABSOLUTE 1 FROM current_check_cursor;
currentid | payload | rlsuser
-----------+---------+-----------------
2 | bcd | regress_rls_bob
(1 row)
DELETE FROM current_check WHERE CURRENT OF current_check_cursor RETURNING *;
currentid | payload | rlsuser
-----------+---------+---------
(0 rows)
FETCH RELATIVE 1 FROM current_check_cursor;
currentid | payload | rlsuser
-----------+---------+-----------------
4 | def | regress_rls_bob
(1 row)
DELETE FROM current_check WHERE CURRENT OF current_check_cursor RETURNING *;
currentid | payload | rlsuser
-----------+---------+-----------------
4 | def_new | regress_rls_bob
(1 row)
SELECT * FROM current_check;
currentid | payload | rlsuser
-----------+---------+-----------------
2 | bcd | regress_rls_bob
(1 row)
COMMIT;
--
-- check pg_stats view filtering
--
SET row_security TO ON;
SET SESSION AUTHORIZATION regress_rls_alice;
ANALYZE current_check;
-- Stats visible
SELECT row_security_active('current_check');
row_security_active
---------------------
f
(1 row)
SELECT attname, most_common_vals FROM pg_stats
WHERE tablename = 'current_check'
ORDER BY 1;
attname | most_common_vals
-----------+-------------------
currentid |
payload |
rlsuser | {regress_rls_bob}
(3 rows)
SET SESSION AUTHORIZATION regress_rls_bob;
-- Stats not visible
SELECT row_security_active('current_check');
row_security_active
---------------------
t
(1 row)
SELECT attname, most_common_vals FROM pg_stats
WHERE tablename = 'current_check'
ORDER BY 1;
attname | most_common_vals
---------+------------------
(0 rows)
--
-- Collation support
--
BEGIN;
CREATE TABLE coll_t (c) AS VALUES ('bar'::text);
CREATE POLICY coll_p ON coll_t USING (c < ('foo'::text COLLATE "C"));
ALTER TABLE coll_t ENABLE ROW LEVEL SECURITY;
GRANT SELECT ON coll_t TO regress_rls_alice;
SELECT (string_to_array(polqual, ':'))[7] AS inputcollid FROM pg_policy WHERE polrelid = 'coll_t'::regclass;
inputcollid
------------------
inputcollid 950
(1 row)
SET SESSION AUTHORIZATION regress_rls_alice;
SELECT * FROM coll_t;
c
-----
bar
(1 row)
ROLLBACK;
--
-- Shared Object Dependencies
--
RESET SESSION AUTHORIZATION;
BEGIN;
CREATE ROLE regress_rls_eve;
CREATE ROLE regress_rls_frank;
CREATE TABLE tbl1 (c) AS VALUES ('bar'::text);
GRANT SELECT ON TABLE tbl1 TO regress_rls_eve;
CREATE POLICY P ON tbl1 TO regress_rls_eve, regress_rls_frank USING (true);
SELECT refclassid::regclass, deptype
FROM pg_depend
WHERE classid = 'pg_policy'::regclass
AND refobjid = 'tbl1'::regclass;
refclassid | deptype
------------+---------
pg_class | a
(1 row)
SELECT refclassid::regclass, deptype
FROM pg_shdepend
WHERE classid = 'pg_policy'::regclass
AND refobjid IN ('regress_rls_eve'::regrole, 'regress_rls_frank'::regrole);
refclassid | deptype
------------+---------
pg_authid | r
pg_authid | r
(2 rows)
SAVEPOINT q;
DROP ROLE regress_rls_eve; --fails due to dependency on POLICY p
ERROR: role "regress_rls_eve" cannot be dropped because some objects depend on it
DETAIL: target of policy p on table tbl1
privileges for table tbl1
ROLLBACK TO q;
ALTER POLICY p ON tbl1 TO regress_rls_frank USING (true);
SAVEPOINT q;
DROP ROLE regress_rls_eve; --fails due to dependency on GRANT SELECT
ERROR: role "regress_rls_eve" cannot be dropped because some objects depend on it
DETAIL: privileges for table tbl1
ROLLBACK TO q;
REVOKE ALL ON TABLE tbl1 FROM regress_rls_eve;
SAVEPOINT q;
DROP ROLE regress_rls_eve; --succeeds
ROLLBACK TO q;
SAVEPOINT q;
DROP ROLE regress_rls_frank; --fails due to dependency on POLICY p
ERROR: role "regress_rls_frank" cannot be dropped because some objects depend on it
DETAIL: target of policy p on table tbl1
ROLLBACK TO q;
DROP POLICY p ON tbl1;
SAVEPOINT q;
DROP ROLE regress_rls_frank; -- succeeds
ROLLBACK TO q;
ROLLBACK; -- cleanup
--
-- Converting table to view
--
BEGIN;
CREATE TABLE t (c int);
CREATE POLICY p ON t USING (c % 2 = 1);
ALTER TABLE t ENABLE ROW LEVEL SECURITY;
SAVEPOINT q;
CREATE RULE "_RETURN" AS ON SELECT TO t DO INSTEAD
SELECT * FROM generate_series(1,5) t0(c); -- fails due to row level security enabled
ERROR: could not convert table "t" to a view because it has row security enabled
ROLLBACK TO q;
ALTER TABLE t DISABLE ROW LEVEL SECURITY;
SAVEPOINT q;
CREATE RULE "_RETURN" AS ON SELECT TO t DO INSTEAD
SELECT * FROM generate_series(1,5) t0(c); -- fails due to policy p on t
ERROR: could not convert table "t" to a view because it has row security policies
ROLLBACK TO q;
DROP POLICY p ON t;
CREATE RULE "_RETURN" AS ON SELECT TO t DO INSTEAD
SELECT * FROM generate_series(1,5) t0(c); -- succeeds
ROLLBACK;
--
-- Policy expression handling
--
BEGIN;
CREATE TABLE t (c) AS VALUES ('bar'::text);
CREATE POLICY p ON t USING (max(c)); -- fails: aggregate functions are not allowed in policy expressions
ERROR: aggregate functions are not allowed in policy expressions
ROLLBACK;
--
-- Non-target relations are only subject to SELECT policies
--
SET SESSION AUTHORIZATION regress_rls_alice;
CREATE TABLE r1 (a int);
CREATE TABLE r2 (a int);
INSERT INTO r1 VALUES (10), (20);
INSERT INTO r2 VALUES (10), (20);
GRANT ALL ON r1, r2 TO regress_rls_bob;
CREATE POLICY p1 ON r1 USING (true);
ALTER TABLE r1 ENABLE ROW LEVEL SECURITY;
CREATE POLICY p1 ON r2 FOR SELECT USING (true);
CREATE POLICY p2 ON r2 FOR INSERT WITH CHECK (false);
CREATE POLICY p3 ON r2 FOR UPDATE USING (false);
CREATE POLICY p4 ON r2 FOR DELETE USING (false);
ALTER TABLE r2 ENABLE ROW LEVEL SECURITY;
SET SESSION AUTHORIZATION regress_rls_bob;
SELECT * FROM r1;
a
----
10
20
(2 rows)
SELECT * FROM r2;
a
----
10
20
(2 rows)
-- r2 is read-only
INSERT INTO r2 VALUES (2); -- Not allowed
ERROR: new row violates row-level security policy for table "r2"
UPDATE r2 SET a = 2 RETURNING *; -- Updates nothing
a
---
(0 rows)
DELETE FROM r2 RETURNING *; -- Deletes nothing
a
---
(0 rows)
-- r2 can be used as a non-target relation in DML
INSERT INTO r1 SELECT a + 1 FROM r2 RETURNING *; -- OK
a
----
11
21
(2 rows)
UPDATE r1 SET a = r2.a + 2 FROM r2 WHERE r1.a = r2.a RETURNING *; -- OK
a | a
----+----
12 | 10
22 | 20
(2 rows)
DELETE FROM r1 USING r2 WHERE r1.a = r2.a + 2 RETURNING *; -- OK
a | a
----+----
12 | 10
22 | 20
(2 rows)
SELECT * FROM r1;
a
----
11
21
(2 rows)
SELECT * FROM r2;
a
----
10
20
(2 rows)
SET SESSION AUTHORIZATION regress_rls_alice;
DROP TABLE r1;
DROP TABLE r2;
--
-- FORCE ROW LEVEL SECURITY applies RLS to owners too
--
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security = on;
CREATE TABLE r1 (a int);
INSERT INTO r1 VALUES (10), (20);
CREATE POLICY p1 ON r1 USING (false);
ALTER TABLE r1 ENABLE ROW LEVEL SECURITY;
ALTER TABLE r1 FORCE ROW LEVEL SECURITY;
-- No error, but no rows
TABLE r1;
a
---
(0 rows)
-- RLS error
INSERT INTO r1 VALUES (1);
ERROR: new row violates row-level security policy for table "r1"
-- No error (unable to see any rows to update)
UPDATE r1 SET a = 1;
TABLE r1;
a
---
(0 rows)
-- No error (unable to see any rows to delete)
DELETE FROM r1;
TABLE r1;
a
---
(0 rows)
SET row_security = off;
-- these all fail, would be affected by RLS
TABLE r1;
ERROR: query would be affected by row-level security policy for table "r1"
HINT: To disable the policy for the table's owner, use ALTER TABLE NO FORCE ROW LEVEL SECURITY.
UPDATE r1 SET a = 1;
ERROR: query would be affected by row-level security policy for table "r1"
HINT: To disable the policy for the table's owner, use ALTER TABLE NO FORCE ROW LEVEL SECURITY.
DELETE FROM r1;
ERROR: query would be affected by row-level security policy for table "r1"
HINT: To disable the policy for the table's owner, use ALTER TABLE NO FORCE ROW LEVEL SECURITY.
DROP TABLE r1;
--
-- FORCE ROW LEVEL SECURITY does not break RI
--
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security = on;
CREATE TABLE r1 (a int PRIMARY KEY);
CREATE TABLE r2 (a int REFERENCES r1);
INSERT INTO r1 VALUES (10), (20);
INSERT INTO r2 VALUES (10), (20);
-- Create policies on r2 which prevent the
-- owner from seeing any rows, but RI should
-- still see them.
CREATE POLICY p1 ON r2 USING (false);
ALTER TABLE r2 ENABLE ROW LEVEL SECURITY;
ALTER TABLE r2 FORCE ROW LEVEL SECURITY;
-- Errors due to rows in r2
DELETE FROM r1;
ERROR: update or delete on table "r1" violates foreign key constraint "r2_a_fkey" on table "r2"
DETAIL: Key (a)=(10) is still referenced from table "r2".
-- Reset r2 to no-RLS
DROP POLICY p1 ON r2;
ALTER TABLE r2 NO FORCE ROW LEVEL SECURITY;
ALTER TABLE r2 DISABLE ROW LEVEL SECURITY;
-- clean out r2 for INSERT test below
DELETE FROM r2;
-- Change r1 to not allow rows to be seen
CREATE POLICY p1 ON r1 USING (false);
ALTER TABLE r1 ENABLE ROW LEVEL SECURITY;
ALTER TABLE r1 FORCE ROW LEVEL SECURITY;
-- No rows seen
TABLE r1;
a
---
(0 rows)
-- No error, RI still sees that row exists in r1
INSERT INTO r2 VALUES (10);
DROP TABLE r2;
DROP TABLE r1;
-- Ensure cascaded DELETE works
CREATE TABLE r1 (a int PRIMARY KEY);
CREATE TABLE r2 (a int REFERENCES r1 ON DELETE CASCADE);
INSERT INTO r1 VALUES (10), (20);
INSERT INTO r2 VALUES (10), (20);
-- Create policies on r2 which prevent the
-- owner from seeing any rows, but RI should
-- still see them.
CREATE POLICY p1 ON r2 USING (false);
ALTER TABLE r2 ENABLE ROW LEVEL SECURITY;
ALTER TABLE r2 FORCE ROW LEVEL SECURITY;
-- Deletes all records from both
DELETE FROM r1;
-- Remove FORCE from r2
ALTER TABLE r2 NO FORCE ROW LEVEL SECURITY;
-- As owner, we now bypass RLS
-- verify no rows in r2 now
TABLE r2;
a
---
(0 rows)
DROP TABLE r2;
DROP TABLE r1;
-- Ensure cascaded UPDATE works
CREATE TABLE r1 (a int PRIMARY KEY);
CREATE TABLE r2 (a int REFERENCES r1 ON UPDATE CASCADE);
INSERT INTO r1 VALUES (10), (20);
INSERT INTO r2 VALUES (10), (20);
-- Create policies on r2 which prevent the
-- owner from seeing any rows, but RI should
-- still see them.
CREATE POLICY p1 ON r2 USING (false);
ALTER TABLE r2 ENABLE ROW LEVEL SECURITY;
ALTER TABLE r2 FORCE ROW LEVEL SECURITY;
-- Updates records in both
UPDATE r1 SET a = a+5;
-- Remove FORCE from r2
ALTER TABLE r2 NO FORCE ROW LEVEL SECURITY;
-- As owner, we now bypass RLS
-- verify records in r2 updated
TABLE r2;
a
----
15
25
(2 rows)
DROP TABLE r2;
DROP TABLE r1;
--
-- Test INSERT+RETURNING applies SELECT policies as
-- WithCheckOptions (meaning an error is thrown)
--
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security = on;
CREATE TABLE r1 (a int);
CREATE POLICY p1 ON r1 FOR SELECT USING (false);
CREATE POLICY p2 ON r1 FOR INSERT WITH CHECK (true);
ALTER TABLE r1 ENABLE ROW LEVEL SECURITY;
ALTER TABLE r1 FORCE ROW LEVEL SECURITY;
-- Works fine
INSERT INTO r1 VALUES (10), (20);
-- No error, but no rows
TABLE r1;
a
---
(0 rows)
SET row_security = off;
-- fail, would be affected by RLS
TABLE r1;
ERROR: query would be affected by row-level security policy for table "r1"
HINT: To disable the policy for the table's owner, use ALTER TABLE NO FORCE ROW LEVEL SECURITY.
SET row_security = on;
-- Error
INSERT INTO r1 VALUES (10), (20) RETURNING *;
ERROR: new row violates row-level security policy for table "r1"
DROP TABLE r1;
--
-- Test UPDATE+RETURNING applies SELECT policies as
-- WithCheckOptions (meaning an error is thrown)
--
SET SESSION AUTHORIZATION regress_rls_alice;
SET row_security = on;
CREATE TABLE r1 (a int);
CREATE POLICY p1 ON r1 FOR SELECT USING (a < 20);
CREATE POLICY p2 ON r1 FOR UPDATE USING (a < 20) WITH CHECK (true);
INSERT INTO r1 VALUES (10);
ALTER TABLE r1 ENABLE ROW LEVEL SECURITY;
ALTER TABLE r1 FORCE ROW LEVEL SECURITY;
-- Works fine
UPDATE r1 SET a = 30;
-- Show updated rows
ALTER TABLE r1 NO FORCE ROW LEVEL SECURITY;
TABLE r1;
a
----
30
(1 row)
-- reset value in r1 for test with RETURNING
UPDATE r1 SET a = 10;
-- Verify row reset
TABLE r1;
a
----
10
(1 row)
ALTER TABLE r1 FORCE ROW LEVEL SECURITY;
-- Error
UPDATE r1 SET a = 30 RETURNING *;
ERROR: new row violates row-level security policy for table "r1"
DROP TABLE r1;
-- Check dependency handling
RESET SESSION AUTHORIZATION;
CREATE TABLE dep1 (c1 int);
CREATE TABLE dep2 (c1 int);
CREATE POLICY dep_p1 ON dep1 TO regress_rls_bob USING (c1 > (select max(dep2.c1) from dep2));
ALTER POLICY dep_p1 ON dep1 TO regress_rls_bob,regress_rls_carol;
-- Should return one
SELECT count(*) = 1 FROM pg_depend
WHERE objid = (SELECT oid FROM pg_policy WHERE polname = 'dep_p1')
AND refobjid = (SELECT oid FROM pg_class WHERE relname = 'dep2');
?column?
----------
t
(1 row)
ALTER POLICY dep_p1 ON dep1 USING (true);
-- Should return one
SELECT count(*) = 1 FROM pg_shdepend
WHERE objid = (SELECT oid FROM pg_policy WHERE polname = 'dep_p1')
AND refobjid = (SELECT oid FROM pg_authid WHERE rolname = 'regress_rls_bob');
?column?
----------
t
(1 row)
-- Should return one
SELECT count(*) = 1 FROM pg_shdepend
WHERE objid = (SELECT oid FROM pg_policy WHERE polname = 'dep_p1')
AND refobjid = (SELECT oid FROM pg_authid WHERE rolname = 'regress_rls_carol');
?column?
----------
t
(1 row)
-- Should return zero
SELECT count(*) = 0 FROM pg_depend
WHERE objid = (SELECT oid FROM pg_policy WHERE polname = 'dep_p1')
AND refobjid = (SELECT oid FROM pg_class WHERE relname = 'dep2');
?column?
----------
t
(1 row)
-- DROP OWNED BY testing
RESET SESSION AUTHORIZATION;
CREATE ROLE regress_rls_dob_role1;
CREATE ROLE regress_rls_dob_role2;
CREATE TABLE dob_t1 (c1 int);
CREATE TABLE dob_t2 (c1 int) PARTITION BY RANGE (c1);
CREATE POLICY p1 ON dob_t1 TO regress_rls_dob_role1 USING (true);
DROP OWNED BY regress_rls_dob_role1;
DROP POLICY p1 ON dob_t1; -- should fail, already gone
ERROR: policy "p1" for table "dob_t1" does not exist
CREATE POLICY p1 ON dob_t1 TO regress_rls_dob_role1,regress_rls_dob_role2 USING (true);
DROP OWNED BY regress_rls_dob_role1;
DROP POLICY p1 ON dob_t1; -- should succeed
CREATE POLICY p1 ON dob_t2 TO regress_rls_dob_role1,regress_rls_dob_role2 USING (true);
DROP OWNED BY regress_rls_dob_role1;
DROP POLICY p1 ON dob_t2; -- should succeed
DROP USER regress_rls_dob_role1;
DROP USER regress_rls_dob_role2;
--
-- Clean up objects
--
RESET SESSION AUTHORIZATION;
\set VERBOSITY terse \\ -- suppress cascade details
DROP SCHEMA regress_rls_schema CASCADE;
NOTICE: drop cascades to 29 other objects
\set VERBOSITY default
DROP USER regress_rls_alice;
DROP USER regress_rls_bob;
DROP USER regress_rls_carol;
DROP USER regress_rls_dave;
DROP USER regress_rls_exempt_user;
DROP ROLE regress_rls_group1;
DROP ROLE regress_rls_group2;
-- Arrange to have a few policies left over, for testing
-- pg_dump/pg_restore
CREATE SCHEMA regress_rls_schema;
CREATE TABLE rls_tbl (c1 int);
ALTER TABLE rls_tbl ENABLE ROW LEVEL SECURITY;
CREATE POLICY p1 ON rls_tbl USING (c1 > 5);
CREATE POLICY p2 ON rls_tbl FOR SELECT USING (c1 <= 3);
CREATE POLICY p3 ON rls_tbl FOR UPDATE USING (c1 <= 3) WITH CHECK (c1 > 5);
CREATE POLICY p4 ON rls_tbl FOR DELETE USING (c1 <= 3);
CREATE TABLE rls_tbl_force (c1 int);
ALTER TABLE rls_tbl_force ENABLE ROW LEVEL SECURITY;
ALTER TABLE rls_tbl_force FORCE ROW LEVEL SECURITY;
CREATE POLICY p1 ON rls_tbl_force USING (c1 = 5) WITH CHECK (c1 < 5);
CREATE POLICY p2 ON rls_tbl_force FOR SELECT USING (c1 = 8);
CREATE POLICY p3 ON rls_tbl_force FOR UPDATE USING (c1 = 8) WITH CHECK (c1 >= 5);
CREATE POLICY p4 ON rls_tbl_force FOR DELETE USING (c1 = 8);
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