text: --
  -- Test access privileges
  --
  
  -- 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 ROLE IF EXISTS regress_priv_group1;
  DROP ROLE IF EXISTS regress_priv_group2;
  
  DROP ROLE IF EXISTS regress_priv_user1;
  DROP ROLE IF EXISTS regress_priv_user2;
  DROP ROLE IF EXISTS regress_priv_user3;
  DROP ROLE IF EXISTS regress_priv_user4;
  DROP ROLE IF EXISTS regress_priv_user5;
  DROP ROLE IF EXISTS regress_priv_user6;
  DROP ROLE IF EXISTS regress_priv_user7;
  
  SELECT lo_unlink(oid) FROM pg_largeobject_metadata WHERE oid >= 1000 AND oid < 3000 ORDER BY oid;
  
  RESET client_min_messages;
  
  -- test proper begins here
  
  CREATE USER regress_priv_user1;
  CREATE USER regress_priv_user2;
  CREATE USER regress_priv_user3;
  CREATE USER regress_priv_user4;
  CREATE USER regress_priv_user5;
  CREATE USER regress_priv_user5;	-- duplicate
  CREATE USER regress_priv_user6;
  CREATE USER regress_priv_user7;
  
  GRANT pg_read_all_data TO regress_priv_user6;
  GRANT pg_write_all_data TO regress_priv_user7;
  
  CREATE GROUP regress_priv_group1;
  CREATE GROUP regress_priv_group2 WITH USER regress_priv_user1, regress_priv_user2;
  
  ALTER GROUP regress_priv_group1 ADD USER regress_priv_user4;
  
  ALTER GROUP regress_priv_group2 ADD USER regress_priv_user2;	-- duplicate
  ALTER GROUP regress_priv_group2 DROP USER regress_priv_user2;
  GRANT regress_priv_group2 TO regress_priv_user4 WITH ADMIN OPTION;
  
  -- test owner privileges
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  SELECT session_user, current_user;
  
  CREATE TABLE atest1 ( a int, b text );
  SELECT * FROM atest1;
  INSERT INTO atest1 VALUES (1, 'one');
  DELETE FROM atest1;
  UPDATE atest1 SET a = 1 WHERE b = 'blech';
  TRUNCATE atest1;
  BEGIN;
  LOCK atest1 IN ACCESS EXCLUSIVE MODE;
  COMMIT;
  
  REVOKE ALL ON atest1 FROM PUBLIC;
  SELECT * FROM atest1;
  
  GRANT ALL ON atest1 TO regress_priv_user2;
  GRANT SELECT ON atest1 TO regress_priv_user3, regress_priv_user4;
  SELECT * FROM atest1;
  
  CREATE TABLE atest2 (col1 varchar(10), col2 boolean);
  GRANT SELECT ON atest2 TO regress_priv_user2;
  GRANT UPDATE ON atest2 TO regress_priv_user3;
  GRANT INSERT ON atest2 TO regress_priv_user4 GRANTED BY CURRENT_USER;
  GRANT TRUNCATE ON atest2 TO regress_priv_user5 GRANTED BY CURRENT_ROLE;
  
  GRANT TRUNCATE ON atest2 TO regress_priv_user4 GRANTED BY regress_priv_user5;  -- error
  
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  SELECT session_user, current_user;
  
  -- try various combinations of queries on atest1 and atest2
  
  SELECT * FROM atest1; -- ok
  SELECT * FROM atest2; -- ok
  INSERT INTO atest1 VALUES (2, 'two'); -- ok
  INSERT INTO atest2 VALUES ('foo', true); -- fail
  INSERT INTO atest1 SELECT 1, b FROM atest1; -- ok
  UPDATE atest1 SET a = 1 WHERE a = 2; -- ok
  UPDATE atest2 SET col2 = NOT col2; -- fail
  SELECT * FROM atest1 FOR UPDATE; -- ok
  SELECT * FROM atest2 FOR UPDATE; -- fail
  DELETE FROM atest2; -- fail
  TRUNCATE atest2; -- fail
  BEGIN;
  LOCK atest2 IN ACCESS EXCLUSIVE MODE; -- fail
  COMMIT;
  COPY atest2 FROM stdin; -- fail
  GRANT ALL ON atest1 TO PUBLIC; -- fail
  
  -- checks in subquery, both ok
  SELECT * FROM atest1 WHERE ( b IN ( SELECT col1 FROM atest2 ) );
  SELECT * FROM atest2 WHERE ( col1 IN ( SELECT b FROM atest1 ) );
  
  SET SESSION AUTHORIZATION regress_priv_user6;
  SELECT * FROM atest1; -- ok
  SELECT * FROM atest2; -- ok
  INSERT INTO atest2 VALUES ('foo', true); -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user7;
  SELECT * FROM atest1; -- fail
  SELECT * FROM atest2; -- fail
  INSERT INTO atest2 VALUES ('foo', true); -- ok
  UPDATE atest2 SET col2 = true; -- ok
  DELETE FROM atest2; -- ok
  
  -- Make sure we are not able to modify system catalogs
  UPDATE pg_catalog.pg_class SET relname = '123'; -- fail
  DELETE FROM pg_catalog.pg_class; -- fail
  UPDATE pg_toast.pg_toast_1213 SET chunk_id = 1; -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user3;
  SELECT session_user, current_user;
  
  SELECT * FROM atest1; -- ok
  SELECT * FROM atest2; -- fail
  INSERT INTO atest1 VALUES (2, 'two'); -- fail
  INSERT INTO atest2 VALUES ('foo', true); -- fail
  INSERT INTO atest1 SELECT 1, b FROM atest1; -- fail
  UPDATE atest1 SET a = 1 WHERE a = 2; -- fail
  UPDATE atest2 SET col2 = NULL; -- ok
  UPDATE atest2 SET col2 = NOT col2; -- fails; requires SELECT on atest2
  UPDATE atest2 SET col2 = true FROM atest1 WHERE atest1.a = 5; -- ok
  SELECT * FROM atest1 FOR UPDATE; -- fail
  SELECT * FROM atest2 FOR UPDATE; -- fail
  DELETE FROM atest2; -- fail
  TRUNCATE atest2; -- fail
  BEGIN;
  LOCK atest2 IN ACCESS EXCLUSIVE MODE; -- ok
  COMMIT;
  COPY atest2 FROM stdin; -- fail
  
  -- checks in subquery, both fail
  SELECT * FROM atest1 WHERE ( b IN ( SELECT col1 FROM atest2 ) );
  SELECT * FROM atest2 WHERE ( col1 IN ( SELECT b FROM atest1 ) );
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  COPY atest2 FROM stdin; -- ok
  bar	true
  \.
  SELECT * FROM atest1; -- ok
  
  
  -- test leaky-function protections in selfuncs
  
  -- regress_priv_user1 will own a table and provide views for it.
  SET SESSION AUTHORIZATION regress_priv_user1;
  
  CREATE TABLE atest12 as
    SELECT x AS a, 10001 - x AS b FROM generate_series(1,10000) x;
  CREATE INDEX ON atest12 (a);
  CREATE INDEX ON atest12 (abs(a));
  -- results below depend on having quite accurate stats for atest12, so...
  ALTER TABLE atest12 SET (autovacuum_enabled = off);
  SET default_statistics_target = 10000;
  VACUUM ANALYZE atest12;
  RESET default_statistics_target;
  
  CREATE FUNCTION leak(integer,integer) RETURNS boolean
    AS $$begin return $1 < $2; end$$
    LANGUAGE plpgsql immutable;
  CREATE OPERATOR <<< (procedure = leak, leftarg = integer, rightarg = integer,
                       restrict = scalarltsel);
  
  -- views with leaky operator
  CREATE VIEW atest12v AS
    SELECT * FROM atest12 WHERE b <<< 5;
  CREATE VIEW atest12sbv WITH (security_barrier=true) AS
    SELECT * FROM atest12 WHERE b <<< 5;
  GRANT SELECT ON atest12v TO PUBLIC;
  GRANT SELECT ON atest12sbv TO PUBLIC;
  
  -- This plan should use nestloop, knowing that few rows will be selected.
  EXPLAIN (COSTS OFF) SELECT * FROM atest12v x, atest12v y WHERE x.a = y.b;
  
  -- And this one.
  EXPLAIN (COSTS OFF) SELECT * FROM atest12 x, atest12 y
    WHERE x.a = y.b and abs(y.a) <<< 5;
  
  -- This should also be a nestloop, but the security barrier forces the inner
  -- scan to be materialized
  EXPLAIN (COSTS OFF) SELECT * FROM atest12sbv x, atest12sbv y WHERE x.a = y.b;
  
  -- Check if regress_priv_user2 can break security.
  SET SESSION AUTHORIZATION regress_priv_user2;
  
  CREATE FUNCTION leak2(integer,integer) RETURNS boolean
    AS $$begin raise notice 'leak % %', $1, $2; return $1 > $2; end$$
    LANGUAGE plpgsql immutable;
  CREATE OPERATOR >>> (procedure = leak2, leftarg = integer, rightarg = integer,
                       restrict = scalargtsel);
  
  -- This should not show any "leak" notices before failing.
  EXPLAIN (COSTS OFF) SELECT * FROM atest12 WHERE a >>> 0;
  
  -- These plans should continue to use a nestloop, since they execute with the
  -- privileges of the view owner.
  EXPLAIN (COSTS OFF) SELECT * FROM atest12v x, atest12v y WHERE x.a = y.b;
  EXPLAIN (COSTS OFF) SELECT * FROM atest12sbv x, atest12sbv y WHERE x.a = y.b;
  
  -- A non-security barrier view does not guard against information leakage.
  EXPLAIN (COSTS OFF) SELECT * FROM atest12v x, atest12v y
    WHERE x.a = y.b and abs(y.a) <<< 5;
  
  -- But a security barrier view isolates the leaky operator.
  EXPLAIN (COSTS OFF) SELECT * FROM atest12sbv x, atest12sbv y
    WHERE x.a = y.b and abs(y.a) <<< 5;
  
  -- Now regress_priv_user1 grants sufficient access to regress_priv_user2.
  SET SESSION AUTHORIZATION regress_priv_user1;
  GRANT SELECT (a, b) ON atest12 TO PUBLIC;
  SET SESSION AUTHORIZATION regress_priv_user2;
  
  -- regress_priv_user2 should continue to get a good row estimate.
  EXPLAIN (COSTS OFF) SELECT * FROM atest12v x, atest12v y WHERE x.a = y.b;
  
  -- But not for this, due to lack of table-wide permissions needed
  -- to make use of the expression index's statistics.
  EXPLAIN (COSTS OFF) SELECT * FROM atest12 x, atest12 y
    WHERE x.a = y.b and abs(y.a) <<< 5;
  
  -- clean up (regress_priv_user1's objects are all dropped later)
  DROP FUNCTION leak2(integer, integer) CASCADE;
  
  
  -- groups
  
  SET SESSION AUTHORIZATION regress_priv_user3;
  CREATE TABLE atest3 (one int, two int, three int);
  GRANT DELETE ON atest3 TO GROUP regress_priv_group2;
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  
  SELECT * FROM atest3; -- fail
  DELETE FROM atest3; -- ok
  
  BEGIN;
  RESET SESSION AUTHORIZATION;
  ALTER ROLE regress_priv_user1 NOINHERIT;
  SET SESSION AUTHORIZATION regress_priv_user1;
  DELETE FROM atest3;
  ROLLBACK;
  
  -- views
  
  SET SESSION AUTHORIZATION regress_priv_user3;
  
  CREATE VIEW atestv1 AS SELECT * FROM atest1; -- ok
  /* The next *should* fail, but it's not implemented that way yet. */
  CREATE VIEW atestv2 AS SELECT * FROM atest2;
  CREATE VIEW atestv3 AS SELECT * FROM atest3; -- ok
  /* Empty view is a corner case that failed in 9.2. */
  CREATE VIEW atestv0 AS SELECT 0 as x WHERE false; -- ok
  
  SELECT * FROM atestv1; -- ok
  SELECT * FROM atestv2; -- fail
  GRANT SELECT ON atestv1, atestv3 TO regress_priv_user4;
  GRANT SELECT ON atestv2 TO regress_priv_user2;
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  
  SELECT * FROM atestv1; -- ok
  SELECT * FROM atestv2; -- fail
  SELECT * FROM atestv3; -- ok
  SELECT * FROM atestv0; -- fail
  
  -- Appendrels excluded by constraints failed to check permissions in 8.4-9.2.
  select * from
    ((select a.q1 as x from int8_tbl a offset 0)
     union all
     (select b.q2 as x from int8_tbl b offset 0)) ss
  where false;
  
  set constraint_exclusion = on;
  select * from
    ((select a.q1 as x, random() from int8_tbl a where q1 > 0)
     union all
     (select b.q2 as x, random() from int8_tbl b where q2 > 0)) ss
  where x < 0;
  reset constraint_exclusion;
  
  CREATE VIEW atestv4 AS SELECT * FROM atestv3; -- nested view
  SELECT * FROM atestv4; -- ok
  GRANT SELECT ON atestv4 TO regress_priv_user2;
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  
  -- Two complex cases:
  
  SELECT * FROM atestv3; -- fail
  SELECT * FROM atestv4; -- ok (even though regress_priv_user2 cannot access underlying atestv3)
  
  SELECT * FROM atest2; -- ok
  SELECT * FROM atestv2; -- fail (even though regress_priv_user2 can access underlying atest2)
  
  -- Test column level permissions
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  CREATE TABLE atest5 (one int, two int unique, three int, four int unique);
  CREATE TABLE atest6 (one int, two int, blue int);
  GRANT SELECT (one), INSERT (two), UPDATE (three) ON atest5 TO regress_priv_user4;
  GRANT ALL (one) ON atest5 TO regress_priv_user3;
  
  INSERT INTO atest5 VALUES (1,2,3);
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT * FROM atest5; -- fail
  SELECT one FROM atest5; -- ok
  COPY atest5 (one) TO stdout; -- ok
  SELECT two FROM atest5; -- fail
  COPY atest5 (two) TO stdout; -- fail
  SELECT atest5 FROM atest5; -- fail
  COPY atest5 (one,two) TO stdout; -- fail
  SELECT 1 FROM atest5; -- ok
  SELECT 1 FROM atest5 a JOIN atest5 b USING (one); -- ok
  SELECT 1 FROM atest5 a JOIN atest5 b USING (two); -- fail
  SELECT 1 FROM atest5 a NATURAL JOIN atest5 b; -- fail
  SELECT * FROM (atest5 a JOIN atest5 b USING (one)) j; -- fail
  SELECT j.* FROM (atest5 a JOIN atest5 b USING (one)) j; -- fail
  SELECT (j.*) IS NULL FROM (atest5 a JOIN atest5 b USING (one)) j; -- fail
  SELECT one FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)) j; -- ok
  SELECT j.one FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)) j; -- ok
  SELECT two FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)) j; -- fail
  SELECT j.two FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)) j; -- fail
  SELECT y FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)) j; -- fail
  SELECT j.y FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)) j; -- fail
  SELECT * FROM (atest5 a JOIN atest5 b USING (one)); -- fail
  SELECT a.* FROM (atest5 a JOIN atest5 b USING (one)); -- fail
  SELECT (a.*) IS NULL FROM (atest5 a JOIN atest5 b USING (one)); -- fail
  SELECT two FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)); -- fail
  SELECT a.two FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)); -- fail
  SELECT y FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)); -- fail
  SELECT b.y FROM (atest5 a JOIN atest5 b(one,x,y,z) USING (one)); -- fail
  SELECT y FROM (atest5 a LEFT JOIN atest5 b(one,x,y,z) USING (one)); -- fail
  SELECT b.y FROM (atest5 a LEFT JOIN atest5 b(one,x,y,z) USING (one)); -- fail
  SELECT y FROM (atest5 a FULL JOIN atest5 b(one,x,y,z) USING (one)); -- fail
  SELECT b.y FROM (atest5 a FULL JOIN atest5 b(one,x,y,z) USING (one)); -- fail
  SELECT 1 FROM atest5 WHERE two = 2; -- fail
  SELECT * FROM atest1, atest5; -- fail
  SELECT atest1.* FROM atest1, atest5; -- ok
  SELECT atest1.*,atest5.one FROM atest1, atest5; -- ok
  SELECT atest1.*,atest5.one FROM atest1 JOIN atest5 ON (atest1.a = atest5.two); -- fail
  SELECT atest1.*,atest5.one FROM atest1 JOIN atest5 ON (atest1.a = atest5.one); -- ok
  SELECT one, two FROM atest5; -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  GRANT SELECT (one,two) ON atest6 TO regress_priv_user4;
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT one, two FROM atest5 NATURAL JOIN atest6; -- fail still
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  GRANT SELECT (two) ON atest5 TO regress_priv_user4;
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT one, two FROM atest5 NATURAL JOIN atest6; -- ok now
  
  -- test column-level privileges for INSERT and UPDATE
  INSERT INTO atest5 (two) VALUES (3); -- ok
  COPY atest5 FROM stdin; -- fail
  COPY atest5 (two) FROM stdin; -- ok
  1
  \.
  INSERT INTO atest5 (three) VALUES (4); -- fail
  INSERT INTO atest5 VALUES (5,5,5); -- fail
  UPDATE atest5 SET three = 10; -- ok
  UPDATE atest5 SET one = 8; -- fail
  UPDATE atest5 SET three = 5, one = 2; -- fail
  -- Check that column level privs are enforced in RETURNING
  -- Ok.
  INSERT INTO atest5(two) VALUES (6) ON CONFLICT (two) DO UPDATE set three = 10;
  -- Error. No SELECT on column three.
  INSERT INTO atest5(two) VALUES (6) ON CONFLICT (two) DO UPDATE set three = 10 RETURNING atest5.three;
  -- Ok.  May SELECT on column "one":
  INSERT INTO atest5(two) VALUES (6) ON CONFLICT (two) DO UPDATE set three = 10 RETURNING atest5.one;
  -- Check that column level privileges are enforced for EXCLUDED
  -- Ok. we may select one
  INSERT INTO atest5(two) VALUES (6) ON CONFLICT (two) DO UPDATE set three = EXCLUDED.one;
  -- Error. No select rights on three
  INSERT INTO atest5(two) VALUES (6) ON CONFLICT (two) DO UPDATE set three = EXCLUDED.three;
  INSERT INTO atest5(two) VALUES (6) ON CONFLICT (two) DO UPDATE set one = 8; -- fails (due to UPDATE)
  INSERT INTO atest5(three) VALUES (4) ON CONFLICT (two) DO UPDATE set three = 10; -- fails (due to INSERT)
  
  -- Check that the columns in the inference require select privileges
  INSERT INTO atest5(four) VALUES (4); -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  GRANT INSERT (four) ON atest5 TO regress_priv_user4;
  SET SESSION AUTHORIZATION regress_priv_user4;
  
  INSERT INTO atest5(four) VALUES (4) ON CONFLICT (four) DO UPDATE set three = 3; -- fails (due to SELECT)
  INSERT INTO atest5(four) VALUES (4) ON CONFLICT ON CONSTRAINT atest5_four_key DO UPDATE set three = 3; -- fails (due to SELECT)
  INSERT INTO atest5(four) VALUES (4); -- ok
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  GRANT SELECT (four) ON atest5 TO regress_priv_user4;
  SET SESSION AUTHORIZATION regress_priv_user4;
  
  INSERT INTO atest5(four) VALUES (4) ON CONFLICT (four) DO UPDATE set three = 3; -- ok
  INSERT INTO atest5(four) VALUES (4) ON CONFLICT ON CONSTRAINT atest5_four_key DO UPDATE set three = 3; -- ok
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  REVOKE ALL (one) ON atest5 FROM regress_priv_user4;
  GRANT SELECT (one,two,blue) ON atest6 TO regress_priv_user4;
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT one FROM atest5; -- fail
  UPDATE atest5 SET one = 1; -- fail
  SELECT atest6 FROM atest6; -- ok
  COPY atest6 TO stdout; -- ok
  
  -- check error reporting with column privs
  SET SESSION AUTHORIZATION regress_priv_user1;
  CREATE TABLE t1 (c1 int, c2 int, c3 int check (c3 < 5), primary key (c1, c2));
  GRANT SELECT (c1) ON t1 TO regress_priv_user2;
  GRANT INSERT (c1, c2, c3) ON t1 TO regress_priv_user2;
  GRANT UPDATE (c1, c2, c3) ON t1 TO regress_priv_user2;
  
  -- seed data
  INSERT INTO t1 VALUES (1, 1, 1);
  INSERT INTO t1 VALUES (1, 2, 1);
  INSERT INTO t1 VALUES (2, 1, 2);
  INSERT INTO t1 VALUES (2, 2, 2);
  INSERT INTO t1 VALUES (3, 1, 3);
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  INSERT INTO t1 (c1, c2) VALUES (1, 1); -- fail, but row not shown
  UPDATE t1 SET c2 = 1; -- fail, but row not shown
  INSERT INTO t1 (c1, c2) VALUES (null, null); -- fail, but see columns being inserted
  INSERT INTO t1 (c3) VALUES (null); -- fail, but see columns being inserted or have SELECT
  INSERT INTO t1 (c1) VALUES (5); -- fail, but see columns being inserted or have SELECT
  UPDATE t1 SET c3 = 10; -- fail, but see columns with SELECT rights, or being modified
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  DROP TABLE t1;
  
  -- check error reporting with column privs on a partitioned table
  CREATE TABLE errtst(a text, b text NOT NULL, c text, secret1 text, secret2 text) PARTITION BY LIST (a);
  CREATE TABLE errtst_part_1(secret2 text, c text, a text, b text NOT NULL, secret1 text);
  CREATE TABLE errtst_part_2(secret1 text, secret2 text, a text, c text, b text NOT NULL);
  
  ALTER TABLE errtst ATTACH PARTITION errtst_part_1 FOR VALUES IN ('aaa');
  ALTER TABLE errtst ATTACH PARTITION errtst_part_2 FOR VALUES IN ('aaaa');
  
  GRANT SELECT (a, b, c) ON TABLE errtst TO regress_priv_user2;
  GRANT UPDATE (a, b, c) ON TABLE errtst TO regress_priv_user2;
  GRANT INSERT (a, b, c) ON TABLE errtst TO regress_priv_user2;
  
  INSERT INTO errtst_part_1 (a, b, c, secret1, secret2)
  VALUES ('aaa', 'bbb', 'ccc', 'the body', 'is in the attic');
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  
  -- Perform a few updates that violate the NOT NULL constraint. Make sure
  -- the error messages don't leak the secret fields.
  
  -- simple insert.
  INSERT INTO errtst (a, b) VALUES ('aaa', NULL);
  -- simple update.
  UPDATE errtst SET b = NULL;
  -- partitioning key is updated, doesn't move the row.
  UPDATE errtst SET a = 'aaa', b = NULL;
  -- row is moved to another partition.
  UPDATE errtst SET a = 'aaaa', b = NULL;
  
  -- row is moved to another partition. This differs from the previous case in
  -- that the new partition is excluded by constraint exclusion, so its
  -- ResultRelInfo is not created at ExecInitModifyTable, but needs to be
  -- constructed on the fly when the updated tuple is routed to it.
  UPDATE errtst SET a = 'aaaa', b = NULL WHERE a = 'aaa';
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  DROP TABLE errtst;
  
  -- test column-level privileges when involved with DELETE
  SET SESSION AUTHORIZATION regress_priv_user1;
  ALTER TABLE atest6 ADD COLUMN three integer;
  GRANT DELETE ON atest5 TO regress_priv_user3;
  GRANT SELECT (two) ON atest5 TO regress_priv_user3;
  REVOKE ALL (one) ON atest5 FROM regress_priv_user3;
  GRANT SELECT (one) ON atest5 TO regress_priv_user4;
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT atest6 FROM atest6; -- fail
  SELECT one FROM atest5 NATURAL JOIN atest6; -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  ALTER TABLE atest6 DROP COLUMN three;
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT atest6 FROM atest6; -- ok
  SELECT one FROM atest5 NATURAL JOIN atest6; -- ok
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  ALTER TABLE atest6 DROP COLUMN two;
  REVOKE SELECT (one,blue) ON atest6 FROM regress_priv_user4;
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT * FROM atest6; -- fail
  SELECT 1 FROM atest6; -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user3;
  DELETE FROM atest5 WHERE one = 1; -- fail
  DELETE FROM atest5 WHERE two = 2; -- ok
  
  -- check inheritance cases
  SET SESSION AUTHORIZATION regress_priv_user1;
  CREATE TABLE atestp1 (f1 int, f2 int);
  CREATE TABLE atestp2 (fx int, fy int);
  CREATE TABLE atestc (fz int) INHERITS (atestp1, atestp2);
  GRANT SELECT(fx,fy,tableoid) ON atestp2 TO regress_priv_user2;
  GRANT SELECT(fx) ON atestc TO regress_priv_user2;
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  SELECT fx FROM atestp2; -- ok
  SELECT fy FROM atestp2; -- ok
  SELECT atestp2 FROM atestp2; -- ok
  SELECT tableoid FROM atestp2; -- ok
  SELECT fy FROM atestc; -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  GRANT SELECT(fy,tableoid) ON atestc TO regress_priv_user2;
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  SELECT fx FROM atestp2; -- still ok
  SELECT fy FROM atestp2; -- ok
  SELECT atestp2 FROM atestp2; -- ok
  SELECT tableoid FROM atestp2; -- ok
  
  -- child's permissions do not apply when operating on parent
  SET SESSION AUTHORIZATION regress_priv_user1;
  REVOKE ALL ON atestc FROM regress_priv_user2;
  GRANT ALL ON atestp1 TO regress_priv_user2;
  SET SESSION AUTHORIZATION regress_priv_user2;
  SELECT f2 FROM atestp1; -- ok
  SELECT f2 FROM atestc; -- fail
  DELETE FROM atestp1; -- ok
  DELETE FROM atestc; -- fail
  UPDATE atestp1 SET f1 = 1; -- ok
  UPDATE atestc SET f1 = 1; -- fail
  TRUNCATE atestp1; -- ok
  TRUNCATE atestc; -- fail
  BEGIN;
  LOCK atestp1;
  END;
  BEGIN;
  LOCK atestc;
  END;
  
  -- privileges on functions, languages
  
  -- switch to superuser
  \c -
  
  REVOKE ALL PRIVILEGES ON LANGUAGE sql FROM PUBLIC;
  GRANT USAGE ON LANGUAGE sql TO regress_priv_user1; -- ok
  GRANT USAGE ON LANGUAGE c TO PUBLIC; -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  GRANT USAGE ON LANGUAGE sql TO regress_priv_user2; -- fail
  CREATE FUNCTION priv_testfunc1(int) RETURNS int AS 'select 2 * $1;' LANGUAGE sql;
  CREATE FUNCTION priv_testfunc2(int) RETURNS int AS 'select 3 * $1;' LANGUAGE sql;
  CREATE AGGREGATE priv_testagg1(int) (sfunc = int4pl, stype = int4);
  CREATE PROCEDURE priv_testproc1(int) AS 'select $1;' LANGUAGE sql;
  
  REVOKE ALL ON FUNCTION priv_testfunc1(int), priv_testfunc2(int), priv_testagg1(int) FROM PUBLIC;
  GRANT EXECUTE ON FUNCTION priv_testfunc1(int), priv_testfunc2(int), priv_testagg1(int) TO regress_priv_user2;
  REVOKE ALL ON FUNCTION priv_testproc1(int) FROM PUBLIC; -- fail, not a function
  REVOKE ALL ON PROCEDURE priv_testproc1(int) FROM PUBLIC;
  GRANT EXECUTE ON PROCEDURE priv_testproc1(int) TO regress_priv_user2;
  GRANT USAGE ON FUNCTION priv_testfunc1(int) TO regress_priv_user3; -- semantic error
  GRANT USAGE ON FUNCTION priv_testagg1(int) TO regress_priv_user3; -- semantic error
  GRANT USAGE ON PROCEDURE priv_testproc1(int) TO regress_priv_user3; -- semantic error
  GRANT ALL PRIVILEGES ON FUNCTION priv_testfunc1(int) TO regress_priv_user4;
  GRANT ALL PRIVILEGES ON FUNCTION priv_testfunc_nosuch(int) TO regress_priv_user4;
  GRANT ALL PRIVILEGES ON FUNCTION priv_testagg1(int) TO regress_priv_user4;
  GRANT ALL PRIVILEGES ON PROCEDURE priv_testproc1(int) TO regress_priv_user4;
  
  CREATE FUNCTION priv_testfunc4(boolean) RETURNS text
    AS 'select col1 from atest2 where col2 = $1;'
    LANGUAGE sql SECURITY DEFINER;
  GRANT EXECUTE ON FUNCTION priv_testfunc4(boolean) TO regress_priv_user3;
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  SELECT priv_testfunc1(5), priv_testfunc2(5); -- ok
  CREATE FUNCTION priv_testfunc3(int) RETURNS int AS 'select 2 * $1;' LANGUAGE sql; -- fail
  SELECT priv_testagg1(x) FROM (VALUES (1), (2), (3)) _(x); -- ok
  CALL priv_testproc1(6); -- ok
  
  SET SESSION AUTHORIZATION regress_priv_user3;
  SELECT priv_testfunc1(5); -- fail
  SELECT priv_testagg1(x) FROM (VALUES (1), (2), (3)) _(x); -- fail
  CALL priv_testproc1(6); -- fail
  SELECT col1 FROM atest2 WHERE col2 = true; -- fail
  SELECT priv_testfunc4(true); -- ok
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT priv_testfunc1(5); -- ok
  SELECT priv_testagg1(x) FROM (VALUES (1), (2), (3)) _(x); -- ok
  CALL priv_testproc1(6); -- ok
  
  DROP FUNCTION priv_testfunc1(int); -- fail
  DROP AGGREGATE priv_testagg1(int); -- fail
  DROP PROCEDURE priv_testproc1(int); -- fail
  
  \c -
  
  DROP FUNCTION priv_testfunc1(int); -- ok
  -- restore to sanity
  GRANT ALL PRIVILEGES ON LANGUAGE sql TO PUBLIC;
  
  -- verify privilege checks on array-element coercions
  BEGIN;
  SELECT '{1}'::int4[]::int8[];
  REVOKE ALL ON FUNCTION int8(integer) FROM PUBLIC;
  SELECT '{1}'::int4[]::int8[]; --superuser, succeed
  SET SESSION AUTHORIZATION regress_priv_user4;
  SELECT '{1}'::int4[]::int8[]; --other user, fail
  ROLLBACK;
  
  -- privileges on types
  
  -- switch to superuser
  \c -
  
  CREATE TYPE priv_testtype1 AS (a int, b text);
  REVOKE USAGE ON TYPE priv_testtype1 FROM PUBLIC;
  GRANT USAGE ON TYPE priv_testtype1 TO regress_priv_user2;
  GRANT USAGE ON TYPE _priv_testtype1 TO regress_priv_user2; -- fail
  GRANT USAGE ON DOMAIN priv_testtype1 TO regress_priv_user2; -- fail
  
  CREATE DOMAIN priv_testdomain1 AS int;
  REVOKE USAGE on DOMAIN priv_testdomain1 FROM PUBLIC;
  GRANT USAGE ON DOMAIN priv_testdomain1 TO regress_priv_user2;
  GRANT USAGE ON TYPE priv_testdomain1 TO regress_priv_user2; -- ok
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  
  -- commands that should fail
  
  CREATE AGGREGATE priv_testagg1a(priv_testdomain1) (sfunc = int4_sum, stype = bigint);
  
  CREATE DOMAIN priv_testdomain2a AS priv_testdomain1;
  
  CREATE DOMAIN priv_testdomain3a AS int;
  CREATE FUNCTION castfunc(int) RETURNS priv_testdomain3a AS $$ SELECT $1::priv_testdomain3a $$ LANGUAGE SQL;
  CREATE CAST (priv_testdomain1 AS priv_testdomain3a) WITH FUNCTION castfunc(int);
  DROP FUNCTION castfunc(int) CASCADE;
  DROP DOMAIN priv_testdomain3a;
  
  CREATE FUNCTION priv_testfunc5a(a priv_testdomain1) RETURNS int LANGUAGE SQL AS $$ SELECT $1 $$;
  CREATE FUNCTION priv_testfunc6a(b int) RETURNS priv_testdomain1 LANGUAGE SQL AS $$ SELECT $1::priv_testdomain1 $$;
  
  CREATE OPERATOR !+! (PROCEDURE = int4pl, LEFTARG = priv_testdomain1, RIGHTARG = priv_testdomain1);
  
  CREATE TABLE test5a (a int, b priv_testdomain1);
  CREATE TABLE test6a OF priv_testtype1;
  CREATE TABLE test10a (a int[], b priv_testtype1[]);
  
  CREATE TABLE test9a (a int, b int);
  ALTER TABLE test9a ADD COLUMN c priv_testdomain1;
  ALTER TABLE test9a ALTER COLUMN b TYPE priv_testdomain1;
  
  CREATE TYPE test7a AS (a int, b priv_testdomain1);
  
  CREATE TYPE test8a AS (a int, b int);
  ALTER TYPE test8a ADD ATTRIBUTE c priv_testdomain1;
  ALTER TYPE test8a ALTER ATTRIBUTE b TYPE priv_testdomain1;
  
  CREATE TABLE test11a AS (SELECT 1::priv_testdomain1 AS a);
  
  REVOKE ALL ON TYPE priv_testtype1 FROM PUBLIC;
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  
  -- commands that should succeed
  
  CREATE AGGREGATE priv_testagg1b(priv_testdomain1) (sfunc = int4_sum, stype = bigint);
  
  CREATE DOMAIN priv_testdomain2b AS priv_testdomain1;
  
  CREATE DOMAIN priv_testdomain3b AS int;
  CREATE FUNCTION castfunc(int) RETURNS priv_testdomain3b AS $$ SELECT $1::priv_testdomain3b $$ LANGUAGE SQL;
  CREATE CAST (priv_testdomain1 AS priv_testdomain3b) WITH FUNCTION castfunc(int);
  
  CREATE FUNCTION priv_testfunc5b(a priv_testdomain1) RETURNS int LANGUAGE SQL AS $$ SELECT $1 $$;
  CREATE FUNCTION priv_testfunc6b(b int) RETURNS priv_testdomain1 LANGUAGE SQL AS $$ SELECT $1::priv_testdomain1 $$;
  
  CREATE OPERATOR !! (PROCEDURE = priv_testfunc5b, RIGHTARG = priv_testdomain1);
  
  CREATE TABLE test5b (a int, b priv_testdomain1);
  CREATE TABLE test6b OF priv_testtype1;
  CREATE TABLE test10b (a int[], b priv_testtype1[]);
  
  CREATE TABLE test9b (a int, b int);
  ALTER TABLE test9b ADD COLUMN c priv_testdomain1;
  ALTER TABLE test9b ALTER COLUMN b TYPE priv_testdomain1;
  
  CREATE TYPE test7b AS (a int, b priv_testdomain1);
  
  CREATE TYPE test8b AS (a int, b int);
  ALTER TYPE test8b ADD ATTRIBUTE c priv_testdomain1;
  ALTER TYPE test8b ALTER ATTRIBUTE b TYPE priv_testdomain1;
  
  CREATE TABLE test11b AS (SELECT 1::priv_testdomain1 AS a);
  
  REVOKE ALL ON TYPE priv_testtype1 FROM PUBLIC;
  
  \c -
  DROP AGGREGATE priv_testagg1b(priv_testdomain1);
  DROP DOMAIN priv_testdomain2b;
  DROP OPERATOR !! (NONE, priv_testdomain1);
  DROP FUNCTION priv_testfunc5b(a priv_testdomain1);
  DROP FUNCTION priv_testfunc6b(b int);
  DROP TABLE test5b;
  DROP TABLE test6b;
  DROP TABLE test9b;
  DROP TABLE test10b;
  DROP TYPE test7b;
  DROP TYPE test8b;
  DROP CAST (priv_testdomain1 AS priv_testdomain3b);
  DROP FUNCTION castfunc(int) CASCADE;
  DROP DOMAIN priv_testdomain3b;
  DROP TABLE test11b;
  
  DROP TYPE priv_testtype1; -- ok
  DROP DOMAIN priv_testdomain1; -- ok
  
  
  -- truncate
  SET SESSION AUTHORIZATION regress_priv_user5;
  TRUNCATE atest2; -- ok
  TRUNCATE atest3; -- fail
  
  -- has_table_privilege function
  
  -- bad-input checks
  select has_table_privilege(NULL,'pg_authid','select');
  select has_table_privilege('pg_shad','select');
  select has_table_privilege('nosuchuser','pg_authid','select');
  select has_table_privilege('pg_authid','sel');
  select has_table_privilege(-999999,'pg_authid','update');
  select has_table_privilege(1,'select');
  
  -- superuser
  \c -
  
  select has_table_privilege(current_user,'pg_authid','select');
  select has_table_privilege(current_user,'pg_authid','insert');
  
  select has_table_privilege(t2.oid,'pg_authid','update')
  from (select oid from pg_roles where rolname = current_user) as t2;
  select has_table_privilege(t2.oid,'pg_authid','delete')
  from (select oid from pg_roles where rolname = current_user) as t2;
  
  -- 'rule' privilege no longer exists, but for backwards compatibility
  -- has_table_privilege still recognizes the keyword and says FALSE
  select has_table_privilege(current_user,t1.oid,'rule')
  from (select oid from pg_class where relname = 'pg_authid') as t1;
  select has_table_privilege(current_user,t1.oid,'references')
  from (select oid from pg_class where relname = 'pg_authid') as t1;
  
  select has_table_privilege(t2.oid,t1.oid,'select')
  from (select oid from pg_class where relname = 'pg_authid') as t1,
    (select oid from pg_roles where rolname = current_user) as t2;
  select has_table_privilege(t2.oid,t1.oid,'insert')
  from (select oid from pg_class where relname = 'pg_authid') as t1,
    (select oid from pg_roles where rolname = current_user) as t2;
  
  select has_table_privilege('pg_authid','update');
  select has_table_privilege('pg_authid','delete');
  select has_table_privilege('pg_authid','truncate');
  
  select has_table_privilege(t1.oid,'select')
  from (select oid from pg_class where relname = 'pg_authid') as t1;
  select has_table_privilege(t1.oid,'trigger')
  from (select oid from pg_class where relname = 'pg_authid') as t1;
  
  -- non-superuser
  SET SESSION AUTHORIZATION regress_priv_user3;
  
  select has_table_privilege(current_user,'pg_class','select');
  select has_table_privilege(current_user,'pg_class','insert');
  
  select has_table_privilege(t2.oid,'pg_class','update')
  from (select oid from pg_roles where rolname = current_user) as t2;
  select has_table_privilege(t2.oid,'pg_class','delete')
  from (select oid from pg_roles where rolname = current_user) as t2;
  
  select has_table_privilege(current_user,t1.oid,'references')
  from (select oid from pg_class where relname = 'pg_class') as t1;
  
  select has_table_privilege(t2.oid,t1.oid,'select')
  from (select oid from pg_class where relname = 'pg_class') as t1,
    (select oid from pg_roles where rolname = current_user) as t2;
  select has_table_privilege(t2.oid,t1.oid,'insert')
  from (select oid from pg_class where relname = 'pg_class') as t1,
    (select oid from pg_roles where rolname = current_user) as t2;
  
  select has_table_privilege('pg_class','update');
  select has_table_privilege('pg_class','delete');
  select has_table_privilege('pg_class','truncate');
  
  select has_table_privilege(t1.oid,'select')
  from (select oid from pg_class where relname = 'pg_class') as t1;
  select has_table_privilege(t1.oid,'trigger')
  from (select oid from pg_class where relname = 'pg_class') as t1;
  
  select has_table_privilege(current_user,'atest1','select');
  select has_table_privilege(current_user,'atest1','insert');
  
  select has_table_privilege(t2.oid,'atest1','update')
  from (select oid from pg_roles where rolname = current_user) as t2;
  select has_table_privilege(t2.oid,'atest1','delete')
  from (select oid from pg_roles where rolname = current_user) as t2;
  
  select has_table_privilege(current_user,t1.oid,'references')
  from (select oid from pg_class where relname = 'atest1') as t1;
  
  select has_table_privilege(t2.oid,t1.oid,'select')
  from (select oid from pg_class where relname = 'atest1') as t1,
    (select oid from pg_roles where rolname = current_user) as t2;
  select has_table_privilege(t2.oid,t1.oid,'insert')
  from (select oid from pg_class where relname = 'atest1') as t1,
    (select oid from pg_roles where rolname = current_user) as t2;
  
  select has_table_privilege('atest1','update');
  select has_table_privilege('atest1','delete');
  select has_table_privilege('atest1','truncate');
  
  select has_table_privilege(t1.oid,'select')
  from (select oid from pg_class where relname = 'atest1') as t1;
  select has_table_privilege(t1.oid,'trigger')
  from (select oid from pg_class where relname = 'atest1') as t1;
  
  -- has_column_privilege function
  
  -- bad-input checks (as non-super-user)
  select has_column_privilege('pg_authid',NULL,'select');
  select has_column_privilege('pg_authid','nosuchcol','select');
  select has_column_privilege(9999,'nosuchcol','select');
  select has_column_privilege(9999,99::int2,'select');
  select has_column_privilege('pg_authid',99::int2,'select');
  select has_column_privilege(9999,99::int2,'select');
  
  create temp table mytable(f1 int, f2 int, f3 int);
  alter table mytable drop column f2;
  select has_column_privilege('mytable','f2','select');
  select has_column_privilege('mytable','........pg.dropped.2........','select');
  select has_column_privilege('mytable',2::int2,'select');
  select has_column_privilege('mytable',99::int2,'select');
  revoke select on table mytable from regress_priv_user3;
  select has_column_privilege('mytable',2::int2,'select');
  select has_column_privilege('mytable',99::int2,'select');
  drop table mytable;
  
  -- Grant options
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  
  CREATE TABLE atest4 (a int);
  
  GRANT SELECT ON atest4 TO regress_priv_user2 WITH GRANT OPTION;
  GRANT UPDATE ON atest4 TO regress_priv_user2;
  GRANT SELECT ON atest4 TO GROUP regress_priv_group1 WITH GRANT OPTION;
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  
  GRANT SELECT ON atest4 TO regress_priv_user3;
  GRANT UPDATE ON atest4 TO regress_priv_user3; -- fail
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  
  REVOKE SELECT ON atest4 FROM regress_priv_user3; -- does nothing
  SELECT has_table_privilege('regress_priv_user3', 'atest4', 'SELECT'); -- true
  REVOKE SELECT ON atest4 FROM regress_priv_user2; -- fail
  REVOKE GRANT OPTION FOR SELECT ON atest4 FROM regress_priv_user2 CASCADE; -- ok
  SELECT has_table_privilege('regress_priv_user2', 'atest4', 'SELECT'); -- true
  SELECT has_table_privilege('regress_priv_user3', 'atest4', 'SELECT'); -- false
  
  SELECT has_table_privilege('regress_priv_user1', 'atest4', 'SELECT WITH GRANT OPTION'); -- true
  
  
  -- security-restricted operations
  \c -
  CREATE ROLE regress_sro_user;
  
  SET SESSION AUTHORIZATION regress_sro_user;
  CREATE FUNCTION unwanted_grant() RETURNS void LANGUAGE sql AS
  	'GRANT regress_priv_group2 TO regress_sro_user';
  CREATE FUNCTION mv_action() RETURNS bool LANGUAGE sql AS
  	'DECLARE c CURSOR WITH HOLD FOR SELECT unwanted_grant(); SELECT true';
  -- REFRESH of this MV will queue a GRANT at end of transaction
  CREATE MATERIALIZED VIEW sro_mv AS SELECT mv_action() WITH NO DATA;
  REFRESH MATERIALIZED VIEW sro_mv;
  \c -
  REFRESH MATERIALIZED VIEW sro_mv;
  
  SET SESSION AUTHORIZATION regress_sro_user;
  -- INSERT to this table will queue a GRANT at end of transaction
  CREATE TABLE sro_trojan_table ();
  CREATE FUNCTION sro_trojan() RETURNS trigger LANGUAGE plpgsql AS
  	'BEGIN PERFORM unwanted_grant(); RETURN NULL; END';
  CREATE CONSTRAINT TRIGGER t AFTER INSERT ON sro_trojan_table
      INITIALLY DEFERRED FOR EACH ROW EXECUTE PROCEDURE sro_trojan();
  -- Now, REFRESH will issue such an INSERT, queueing the GRANT
  CREATE OR REPLACE FUNCTION mv_action() RETURNS bool LANGUAGE sql AS
  	'INSERT INTO sro_trojan_table DEFAULT VALUES; SELECT true';
  REFRESH MATERIALIZED VIEW sro_mv;
  \c -
  REFRESH MATERIALIZED VIEW sro_mv;
  BEGIN; SET CONSTRAINTS ALL IMMEDIATE; REFRESH MATERIALIZED VIEW sro_mv; COMMIT;
  
  DROP OWNED BY regress_sro_user;
  DROP ROLE regress_sro_user;
  
  
  -- Admin options
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  CREATE FUNCTION dogrant_ok() RETURNS void LANGUAGE sql SECURITY DEFINER AS
  	'GRANT regress_priv_group2 TO regress_priv_user5';
  GRANT regress_priv_group2 TO regress_priv_user5; -- ok: had ADMIN OPTION
  SET ROLE regress_priv_group2;
  GRANT regress_priv_group2 TO regress_priv_user5; -- fails: SET ROLE suspended privilege
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  GRANT regress_priv_group2 TO regress_priv_user5; -- fails: no ADMIN OPTION
  SELECT dogrant_ok();			-- ok: SECURITY DEFINER conveys ADMIN
  SET ROLE regress_priv_group2;
  GRANT regress_priv_group2 TO regress_priv_user5; -- fails: SET ROLE did not help
  
  SET SESSION AUTHORIZATION regress_priv_group2;
  GRANT regress_priv_group2 TO regress_priv_user5; -- ok: a role can self-admin
  CREATE FUNCTION dogrant_fails() RETURNS void LANGUAGE sql SECURITY DEFINER AS
  	'GRANT regress_priv_group2 TO regress_priv_user5';
  SELECT dogrant_fails();			-- fails: no self-admin in SECURITY DEFINER
  DROP FUNCTION dogrant_fails();
  
  SET SESSION AUTHORIZATION regress_priv_user4;
  DROP FUNCTION dogrant_ok();
  REVOKE regress_priv_group2 FROM regress_priv_user5;
  
  
  -- has_sequence_privilege tests
  \c -
  
  CREATE SEQUENCE x_seq;
  
  GRANT USAGE on x_seq to regress_priv_user2;
  
  SELECT has_sequence_privilege('regress_priv_user1', 'atest1', 'SELECT');
  SELECT has_sequence_privilege('regress_priv_user1', 'x_seq', 'INSERT');
  SELECT has_sequence_privilege('regress_priv_user1', 'x_seq', 'SELECT');
  
  SET SESSION AUTHORIZATION regress_priv_user2;
  
  SELECT has_sequence_privilege('x_seq', 'USAGE');
  
  -- largeobject privilege tests
  \c -
  SET SESSION AUTHORIZATION regress_priv_user1;
  
  SELECT lo_create(1001);
  SELECT lo_create(1002);
  SELECT lo_create(1003);
  SELECT lo_create(1004);
  SELECT lo_create(1005);
  
  GRANT ALL ON LARGE OBJECT 1001 TO PUBLIC;
  GRANT SELECT ON LARGE OBJECT 1003 TO regress_priv_user2;
  GRANT SELECT,UPDATE ON LARGE OBJECT 1004 TO regress_priv_user2;
  GRANT ALL ON LARGE OBJECT 1005 TO regress_priv_user2;
  GRANT SELECT ON LARGE OBJECT 1005 TO regress_priv_user2 WITH GRANT OPTION;
  
  GRANT SELECT, INSERT ON LARGE OBJECT 1001 TO PUBLIC;	-- to be failed
  GRANT SELECT, UPDATE ON LARGE OBJECT 1001 TO nosuchuser;	-- to be failed
  GRANT SELECT, UPDATE ON LARGE OBJECT  999 TO PUBLIC;	-- to be failed
  
  \c -
  SET SESSION AUTHORIZATION regress_priv_user2;
  
  SELECT lo_create(2001);
  SELECT lo_create(2002);
  
  SELECT loread(lo_open(1001, x'20000'::int), 32);	-- allowed, for now
  SELECT lowrite(lo_open(1001, x'40000'::int), 'abcd');	-- fail, wrong mode
  
  SELECT loread(lo_open(1001, x'40000'::int), 32);
  SELECT loread(lo_open(1002, x'40000'::int), 32);	-- to be denied
  SELECT loread(lo_open(1003, x'40000'::int), 32);
  SELECT loread(lo_open(1004, x'40000'::int), 32);
  
  SELECT lowrite(lo_open(1001, x'20000'::int), 'abcd');
  SELECT lowrite(lo_open(1002, x'20000'::int), 'abcd');	-- to be denied
  SELECT lowrite(lo_open(1003, x'20000'::int), 'abcd');	-- to be denied
  SELECT lowrite(lo_open(1004, x'20000'::int), 'abcd');
  
  GRANT SELECT ON LARGE OBJECT 1005 TO regress_priv_user3;
  GRANT UPDATE ON LARGE OBJECT 1006 TO regress_priv_user3;	-- to be denied
  REVOKE ALL ON LARGE OBJECT 2001, 2002 FROM PUBLIC;
  GRANT ALL ON LARGE OBJECT 2001 TO regress_priv_user3;
  
  SELECT lo_unlink(1001);		-- to be denied
  SELECT lo_unlink(2002);
  
  \c -
  -- confirm ACL setting
  SELECT oid, pg_get_userbyid(lomowner) ownername, lomacl FROM pg_largeobject_metadata WHERE oid >= 1000 AND oid < 3000 ORDER BY oid;
  
  SET SESSION AUTHORIZATION regress_priv_user3;
  
  SELECT loread(lo_open(1001, x'40000'::int), 32);
  SELECT loread(lo_open(1003, x'40000'::int), 32);	-- to be denied
  SELECT loread(lo_open(1005, x'40000'::int), 32);
  
  SELECT lo_truncate(lo_open(1005, x'20000'::int), 10);	-- to be denied
  SELECT lo_truncate(lo_open(2001, x'20000'::int), 10);
  
  -- compatibility mode in largeobject permission
  \c -
  SET lo_compat_privileges = false;	-- default setting
  SET SESSION AUTHORIZATION regress_priv_user4;
  
  SELECT loread(lo_open(1002, x'40000'::int), 32);	-- to be denied
  SELECT lowrite(lo_open(1002, x'20000'::int), 'abcd');	-- to be denied
  SELECT lo_truncate(lo_open(1002, x'20000'::int), 10);	-- to be denied
  SELECT lo_put(1002, 1, 'abcd');				-- to be denied
  SELECT lo_unlink(1002);					-- to be denied
  SELECT lo_export(1001, '/dev/null');			-- to be denied
  SELECT lo_import('/dev/null');				-- to be denied
  SELECT lo_import('/dev/null', 2003);			-- to be denied
  
  \c -
  SET lo_compat_privileges = true;	-- compatibility mode
  SET SESSION AUTHORIZATION regress_priv_user4;
  
  SELECT loread(lo_open(1002, x'40000'::int), 32);
  SELECT lowrite(lo_open(1002, x'20000'::int), 'abcd');
  SELECT lo_truncate(lo_open(1002, x'20000'::int), 10);
  SELECT lo_unlink(1002);
  SELECT lo_export(1001, '/dev/null');			-- to be denied
  
  -- don't allow unpriv users to access pg_largeobject contents
  \c -
  SELECT * FROM pg_largeobject LIMIT 0;
  
  SET SESSION AUTHORIZATION regress_priv_user1;
  SELECT * FROM pg_largeobject LIMIT 0;			-- to be denied
  
  -- test pg_database_owner
  RESET SESSION AUTHORIZATION;
  GRANT pg_database_owner TO regress_priv_user1;
  GRANT regress_priv_user1 TO pg_database_owner;
  CREATE TABLE datdba_only ();
  ALTER TABLE datdba_only OWNER TO pg_database_owner;
  REVOKE DELETE ON datdba_only FROM pg_database_owner;
  SELECT
  	pg_has_role('regress_priv_user1', 'pg_database_owner', 'USAGE') as priv,
  	pg_has_role('regress_priv_user1', 'pg_database_owner', 'MEMBER') as mem,
  	pg_has_role('regress_priv_user1', 'pg_database_owner',
  				'MEMBER WITH ADMIN OPTION') as admin;
  
  BEGIN;
  DO $$BEGIN EXECUTE format(
  	'ALTER DATABASE %I OWNER TO regress_priv_group2', current_catalog); END$$;
  SELECT
  	pg_has_role('regress_priv_user1', 'pg_database_owner', 'USAGE') as priv,
  	pg_has_role('regress_priv_user1', 'pg_database_owner', 'MEMBER') as mem,
  	pg_has_role('regress_priv_user1', 'pg_database_owner',
  				'MEMBER WITH ADMIN OPTION') as admin;
  SET SESSION AUTHORIZATION regress_priv_user1;
  TABLE information_schema.enabled_roles ORDER BY role_name COLLATE "C";
  TABLE information_schema.applicable_roles ORDER BY role_name COLLATE "C";
  INSERT INTO datdba_only DEFAULT VALUES;
  SAVEPOINT q; DELETE FROM datdba_only; ROLLBACK TO q;
  SET SESSION AUTHORIZATION regress_priv_user2;
  TABLE information_schema.enabled_roles;
  INSERT INTO datdba_only DEFAULT VALUES;
  ROLLBACK;
  
  -- test default ACLs
  \c -
  
  CREATE SCHEMA testns;
  GRANT ALL ON SCHEMA testns TO regress_priv_user1;
  
  CREATE TABLE testns.acltest1 (x int);
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'SELECT'); -- no
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'INSERT'); -- no
  
  -- placeholder for test with duplicated schema and role names
  ALTER DEFAULT PRIVILEGES IN SCHEMA testns,testns GRANT SELECT ON TABLES TO public,public;
  
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'SELECT'); -- no
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'INSERT'); -- no
  
  DROP TABLE testns.acltest1;
  CREATE TABLE testns.acltest1 (x int);
  
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'SELECT'); -- yes
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'INSERT'); -- no
  
  ALTER DEFAULT PRIVILEGES IN SCHEMA testns GRANT INSERT ON TABLES TO regress_priv_user1;
  
  DROP TABLE testns.acltest1;
  CREATE TABLE testns.acltest1 (x int);
  
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'SELECT'); -- yes
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'INSERT'); -- yes
  
  ALTER DEFAULT PRIVILEGES IN SCHEMA testns REVOKE INSERT ON TABLES FROM regress_priv_user1;
  
  DROP TABLE testns.acltest1;
  CREATE TABLE testns.acltest1 (x int);
  
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'SELECT'); -- yes
  SELECT has_table_privilege('regress_priv_user1', 'testns.acltest1', 'INSERT'); -- no
  
  ALTER DEFAULT PRIVILEGES FOR ROLE regress_priv_user1 REVOKE EXECUTE ON FUNCTIONS FROM public;
  
  ALTER DEFAULT PRIVILEGES IN SCHEMA testns GRANT USAGE ON SCHEMAS TO regress_priv_user2; -- error
  
  --
  -- Testing blanket default grants is very hazardous since it might change
  -- the privileges attached to objects created by concurrent regression tests.
  -- To avoid that, be sure to revoke the privileges again before committing.
  --
  BEGIN;
  
  ALTER DEFAULT PRIVILEGES GRANT USAGE ON SCHEMAS TO regress_priv_user2;
  
  CREATE SCHEMA testns2;
  
  SELECT has_schema_privilege('regress_priv_user2', 'testns2', 'USAGE'); -- yes
  SELECT has_schema_privilege('regress_priv_user6', 'testns2', 'USAGE'); -- yes
  SELECT has_schema_privilege('regress_priv_user2', 'testns2', 'CREATE'); -- no
  
  ALTER DEFAULT PRIVILEGES REVOKE USAGE ON SCHEMAS FROM regress_priv_user2;
  
  CREATE SCHEMA testns3;
  
  SELECT has_schema_privilege('regress_priv_user2', 'testns3', 'USAGE'); -- no
  SELECT has_schema_privilege('regress_priv_user2', 'testns3', 'CREATE'); -- no
  
  ALTER DEFAULT PRIVILEGES GRANT ALL ON SCHEMAS TO regress_priv_user2;
  
  CREATE SCHEMA testns4;
  
  SELECT has_schema_privilege('regress_priv_user2', 'testns4', 'USAGE'); -- yes
  SELECT has_schema_privilege('regress_priv_user2', 'testns4', 'CREATE'); -- yes
  
  ALTER DEFAULT PRIVILEGES REVOKE ALL ON SCHEMAS FROM regress_priv_user2;
  
  COMMIT;
  
  -- Test for DROP OWNED BY with shared dependencies.  This is done in a
  -- separate, rollbacked, transaction to avoid any trouble with other
  -- regression sessions.
  BEGIN;
  ALTER DEFAULT PRIVILEGES GRANT ALL ON FUNCTIONS TO regress_priv_user2;
  ALTER DEFAULT PRIVILEGES GRANT ALL ON SCHEMAS TO regress_priv_user2;
  ALTER DEFAULT PRIVILEGES GRANT ALL ON SEQUENCES TO regress_priv_user2;
  ALTER DEFAULT PRIVILEGES GRANT ALL ON TABLES TO regress_priv_user2;
  ALTER DEFAULT PRIVILEGES GRANT ALL ON TYPES TO regress_priv_user2;
  SELECT count(*) FROM pg_shdepend
    WHERE deptype = 'a' AND
          refobjid = 'regress_priv_user2'::regrole AND
  	classid = 'pg_default_acl'::regclass;
  DROP OWNED BY regress_priv_user2, regress_priv_user2;
  SELECT count(*) FROM pg_shdepend
    WHERE deptype = 'a' AND
          refobjid = 'regress_priv_user2'::regrole AND
  	classid = 'pg_default_acl'::regclass;
  ROLLBACK;
  
  CREATE SCHEMA testns5;
  
  SELECT has_schema_privilege('regress_priv_user2', 'testns5', 'USAGE'); -- no
  SELECT has_schema_privilege('regress_priv_user2', 'testns5', 'CREATE'); -- no
  
  SET ROLE regress_priv_user1;
  
  CREATE FUNCTION testns.foo() RETURNS int AS 'select 1' LANGUAGE sql;
  CREATE AGGREGATE testns.agg1(int) (sfunc = int4pl, stype = int4);
  CREATE PROCEDURE testns.bar() AS 'select 1' LANGUAGE sql;
  
  SELECT has_function_privilege('regress_priv_user2', 'testns.foo()', 'EXECUTE'); -- no
  SELECT has_function_privilege('regress_priv_user2', 'testns.agg1(int)', 'EXECUTE'); -- no
  SELECT has_function_privilege('regress_priv_user2', 'testns.bar()', 'EXECUTE'); -- no
  
  ALTER DEFAULT PRIVILEGES IN SCHEMA testns GRANT EXECUTE ON ROUTINES to public;
  
  DROP FUNCTION testns.foo();
  CREATE FUNCTION testns.foo() RETURNS int AS 'select 1' LANGUAGE sql;
  DROP AGGREGATE testns.agg1(int);
  CREATE AGGREGATE testns.agg1(int) (sfunc = int4pl, stype = int4);
  DROP PROCEDURE testns.bar();
  CREATE PROCEDURE testns.bar() AS 'select 1' LANGUAGE sql;
  
  SELECT has_function_privilege('regress_priv_user2', 'testns.foo()', 'EXECUTE'); -- yes
  SELECT has_function_privilege('regress_priv_user2', 'testns.agg1(int)', 'EXECUTE'); -- yes
  SELECT has_function_privilege('regress_priv_user2', 'testns.bar()', 'EXECUTE'); -- yes (counts as function here)
  
  DROP FUNCTION testns.foo();
  DROP AGGREGATE testns.agg1(int);
  DROP PROCEDURE testns.bar();
  
  ALTER DEFAULT PRIVILEGES FOR ROLE regress_priv_user1 REVOKE USAGE ON TYPES FROM public;
  
  CREATE DOMAIN testns.priv_testdomain1 AS int;
  
  SELECT has_type_privilege('regress_priv_user2', 'testns.priv_testdomain1', 'USAGE'); -- no
  
  ALTER DEFAULT PRIVILEGES IN SCHEMA testns GRANT USAGE ON TYPES to public;
  
  DROP DOMAIN testns.priv_testdomain1;
  CREATE DOMAIN testns.priv_testdomain1 AS int;
  
  SELECT has_type_privilege('regress_priv_user2', 'testns.priv_testdomain1', 'USAGE'); -- yes
  
  DROP DOMAIN testns.priv_testdomain1;
  
  RESET ROLE;
  
  SELECT count(*)
    FROM pg_default_acl d LEFT JOIN pg_namespace n ON defaclnamespace = n.oid
    WHERE nspname = 'testns';
  
  DROP SCHEMA testns CASCADE;
  DROP SCHEMA testns2 CASCADE;
  DROP SCHEMA testns3 CASCADE;
  DROP SCHEMA testns4 CASCADE;
  DROP SCHEMA testns5 CASCADE;
  
  SELECT d.*     -- check that entries went away
    FROM pg_default_acl d LEFT JOIN pg_namespace n ON defaclnamespace = n.oid
    WHERE nspname IS NULL AND defaclnamespace != 0;
  
  
  -- Grant on all objects of given type in a schema
  \c -
  
  CREATE SCHEMA testns;
  CREATE TABLE testns.t1 (f1 int);
  CREATE TABLE testns.t2 (f1 int);
  
  SELECT has_table_privilege('regress_priv_user1', 'testns.t1', 'SELECT'); -- false
  
  GRANT ALL ON ALL TABLES IN SCHEMA testns TO regress_priv_user1;
  
  SELECT has_table_privilege('regress_priv_user1', 'testns.t1', 'SELECT'); -- true
  SELECT has_table_privilege('regress_priv_user1', 'testns.t2', 'SELECT'); -- true
  
  REVOKE ALL ON ALL TABLES IN SCHEMA testns FROM regress_priv_user1;
  
  SELECT has_table_privilege('regress_priv_user1', 'testns.t1', 'SELECT'); -- false
  SELECT has_table_privilege('regress_priv_user1', 'testns.t2', 'SELECT'); -- false
  
  CREATE FUNCTION testns.priv_testfunc(int) RETURNS int AS 'select 3 * $1;' LANGUAGE sql;
  CREATE AGGREGATE testns.priv_testagg(int) (sfunc = int4pl, stype = int4);
  CREATE PROCEDURE testns.priv_testproc(int) AS 'select 3' LANGUAGE sql;
  
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testfunc(int)', 'EXECUTE'); -- true by default
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testagg(int)', 'EXECUTE'); -- true by default
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testproc(int)', 'EXECUTE'); -- true by default
  
  REVOKE ALL ON ALL FUNCTIONS IN SCHEMA testns FROM PUBLIC;
  
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testfunc(int)', 'EXECUTE'); -- false
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testagg(int)', 'EXECUTE'); -- false
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testproc(int)', 'EXECUTE'); -- still true, not a function
  
  REVOKE ALL ON ALL PROCEDURES IN SCHEMA testns FROM PUBLIC;
  
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testproc(int)', 'EXECUTE'); -- now false
  
  GRANT ALL ON ALL ROUTINES IN SCHEMA testns TO PUBLIC;
  
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testfunc(int)', 'EXECUTE'); -- true
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testagg(int)', 'EXECUTE'); -- true
  SELECT has_function_privilege('regress_priv_user1', 'testns.priv_testproc(int)', 'EXECUTE'); -- true
  
  DROP SCHEMA testns CASCADE;
  
  
  -- Change owner of the schema & and rename of new schema owner
  \c -
  
  CREATE ROLE regress_schemauser1 superuser login;
  CREATE ROLE regress_schemauser2 superuser login;
  
  SET SESSION ROLE regress_schemauser1;
  CREATE SCHEMA testns;
  
  SELECT nspname, rolname FROM pg_namespace, pg_roles WHERE pg_namespace.nspname = 'testns' AND pg_namespace.nspowner = pg_roles.oid;
  
  ALTER SCHEMA testns OWNER TO regress_schemauser2;
  ALTER ROLE regress_schemauser2 RENAME TO regress_schemauser_renamed;
  SELECT nspname, rolname FROM pg_namespace, pg_roles WHERE pg_namespace.nspname = 'testns' AND pg_namespace.nspowner = pg_roles.oid;
  
  set session role regress_schemauser_renamed;
  DROP SCHEMA testns CASCADE;
  
  -- clean up
  \c -
  
  DROP ROLE regress_schemauser1;
  DROP ROLE regress_schemauser_renamed;
  
  
  -- test that dependent privileges are revoked (or not) properly
  \c -
  
  set session role regress_priv_user1;
  create table dep_priv_test (a int);
  grant select on dep_priv_test to regress_priv_user2 with grant option;
  grant select on dep_priv_test to regress_priv_user3 with grant option;
  set session role regress_priv_user2;
  grant select on dep_priv_test to regress_priv_user4 with grant option;
  set session role regress_priv_user3;
  grant select on dep_priv_test to regress_priv_user4 with grant option;
  set session role regress_priv_user4;
  grant select on dep_priv_test to regress_priv_user5;
  \dp dep_priv_test
  set session role regress_priv_user2;
  revoke select on dep_priv_test from regress_priv_user4 cascade;
  \dp dep_priv_test
  set session role regress_priv_user3;
  revoke select on dep_priv_test from regress_priv_user4 cascade;
  \dp dep_priv_test
  set session role regress_priv_user1;
  drop table dep_priv_test;
  
  
  -- clean up
  
  \c
  
  drop sequence x_seq;
  
  DROP AGGREGATE priv_testagg1(int);
  DROP FUNCTION priv_testfunc2(int);
  DROP FUNCTION priv_testfunc4(boolean);
  DROP PROCEDURE priv_testproc1(int);
  
  DROP VIEW atestv0;
  DROP VIEW atestv1;
  DROP VIEW atestv2;
  -- this should cascade to drop atestv4
  DROP VIEW atestv3 CASCADE;
  -- this should complain "does not exist"
  DROP VIEW atestv4;
  
  DROP TABLE atest1;
  DROP TABLE atest2;
  DROP TABLE atest3;
  DROP TABLE atest4;
  DROP TABLE atest5;
  DROP TABLE atest6;
  DROP TABLE atestc;
  DROP TABLE atestp1;
  DROP TABLE atestp2;
  
  SELECT lo_unlink(oid) FROM pg_largeobject_metadata WHERE oid >= 1000 AND oid < 3000 ORDER BY oid;
  
  DROP GROUP regress_priv_group1;
  DROP GROUP regress_priv_group2;
  
  -- these are needed to clean up permissions
  REVOKE USAGE ON LANGUAGE sql FROM regress_priv_user1;
  DROP OWNED BY regress_priv_user1;
  
  DROP USER regress_priv_user1;
  DROP USER regress_priv_user2;
  DROP USER regress_priv_user3;
  DROP USER regress_priv_user4;
  DROP USER regress_priv_user5;
  DROP USER regress_priv_user6;
  DROP USER regress_priv_user7;
  DROP USER regress_priv_user8; -- does not exist
  
  
  -- permissions with LOCK TABLE
  CREATE USER regress_locktable_user;
  CREATE TABLE lock_table (a int);
  
  -- LOCK TABLE and SELECT permission
  GRANT SELECT ON lock_table TO regress_locktable_user;
  SET SESSION AUTHORIZATION regress_locktable_user;
  BEGIN;
  LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should fail
  ROLLBACK;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should pass
  COMMIT;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should fail
  ROLLBACK;
  \c
  REVOKE SELECT ON lock_table FROM regress_locktable_user;
  
  -- LOCK TABLE and INSERT permission
  GRANT INSERT ON lock_table TO regress_locktable_user;
  SET SESSION AUTHORIZATION regress_locktable_user;
  BEGIN;
  LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
  COMMIT;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
  ROLLBACK;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should fail
  ROLLBACK;
  \c
  REVOKE INSERT ON lock_table FROM regress_locktable_user;
  
  -- LOCK TABLE and UPDATE permission
  GRANT UPDATE ON lock_table TO regress_locktable_user;
  SET SESSION AUTHORIZATION regress_locktable_user;
  BEGIN;
  LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
  COMMIT;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
  ROLLBACK;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
  COMMIT;
  \c
  REVOKE UPDATE ON lock_table FROM regress_locktable_user;
  
  -- LOCK TABLE and DELETE permission
  GRANT DELETE ON lock_table TO regress_locktable_user;
  SET SESSION AUTHORIZATION regress_locktable_user;
  BEGIN;
  LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
  COMMIT;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
  ROLLBACK;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
  COMMIT;
  \c
  REVOKE DELETE ON lock_table FROM regress_locktable_user;
  
  -- LOCK TABLE and TRUNCATE permission
  GRANT TRUNCATE ON lock_table TO regress_locktable_user;
  SET SESSION AUTHORIZATION regress_locktable_user;
  BEGIN;
  LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
  COMMIT;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
  ROLLBACK;
  BEGIN;
  LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
  COMMIT;
  \c
  REVOKE TRUNCATE ON lock_table FROM regress_locktable_user;
  
  -- clean up
  DROP TABLE lock_table;
  DROP USER regress_locktable_user;
  