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postgres/src/test/regress/expected/rowsecurity.out

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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 table 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 table 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 its 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 view rls_view
EXPLAIN (COSTS OFF) SELECT * FROM rls_view; --fail - permission denied.
ERROR: permission denied for view 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 table 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 table copy_rel_to
SET row_security TO ON;
COPY copy_rel_to TO STDOUT WITH DELIMITER ','; --fail - permission denied
ERROR: permission denied for table 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 table copy_t
SET row_security TO ON;
COPY copy_t FROM STDIN; --fail - permission denied.
ERROR: permission denied for table 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 PRIMARY KEY);
CREATE POLICY p1 ON r1 FOR SELECT USING (a < 20);
CREATE POLICY p2 ON r1 FOR UPDATE USING (a < 20) WITH CHECK (true);
CREATE POLICY p3 ON r1 FOR INSERT 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"
-- UPDATE path of INSERT ... ON CONFLICT DO UPDATE should also error out
INSERT INTO r1 VALUES (10)
ON CONFLICT (a) DO UPDATE SET a = 30 RETURNING *;
ERROR: new row violates row-level security policy for table "r1"
-- Should still error out without RETURNING (use of arbiter always requires
-- SELECT permissions)
INSERT INTO r1 VALUES (10)
ON CONFLICT (a) DO UPDATE SET a = 30;
ERROR: new row violates row-level security policy for table "r1"
INSERT INTO r1 VALUES (10)
ON CONFLICT ON CONSTRAINT r1_pkey DO UPDATE SET a = 30;
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);