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Commit e66a453

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jconwayjconway
committed
Improve regression test coverage of table lock modes vs permissions.
Test the interactions with permissions and LOCK TABLE. Specifically ROW EXCLUSIVE, ACCESS SHARE, and ACCESS EXCLUSIVE modes against SELECT, INSERT, UPDATE, DELETE, and TRUNCATE permissions. Discussed by Stephen Frost and Michael Paquier, patch by the latter. Backpatch to 9.5 where matching behavior was first committed.
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‎src/test/regress/expected/privileges.out

+83
Original file line numberDiff line numberDiff line change
@@ -1569,3 +1569,86 @@ DROP USER regressuser4;
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DROP USER regressuser5;
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DROP USER regressuser6;
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ERROR: role "regressuser6" does not exist
1572+
-- permissions with LOCK TABLE
1573+
CREATE USER locktable_user;
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CREATE TABLE lock_table (a int);
1575+
-- LOCK TABLE and SELECT permission
1576+
GRANT SELECT ON lock_table TO locktable_user;
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SET SESSION AUTHORIZATION locktable_user;
1578+
BEGIN;
1579+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should fail
1580+
ERROR: permission denied for relation lock_table
1581+
ROLLBACK;
1582+
BEGIN;
1583+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should pass
1584+
COMMIT;
1585+
BEGIN;
1586+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should fail
1587+
ERROR: permission denied for relation lock_table
1588+
ROLLBACK;
1589+
\c
1590+
REVOKE SELECT ON lock_table FROM locktable_user;
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-- LOCK TABLE and INSERT permission
1592+
GRANT INSERT ON lock_table TO locktable_user;
1593+
SET SESSION AUTHORIZATION locktable_user;
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BEGIN;
1595+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
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COMMIT;
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BEGIN;
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LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
1599+
ERROR: permission denied for relation lock_table
1600+
ROLLBACK;
1601+
BEGIN;
1602+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should fail
1603+
ERROR: permission denied for relation lock_table
1604+
ROLLBACK;
1605+
\c
1606+
REVOKE INSERT ON lock_table FROM locktable_user;
1607+
-- LOCK TABLE and UPDATE permission
1608+
GRANT UPDATE ON lock_table TO locktable_user;
1609+
SET SESSION AUTHORIZATION locktable_user;
1610+
BEGIN;
1611+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
1612+
COMMIT;
1613+
BEGIN;
1614+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
1615+
ERROR: permission denied for relation lock_table
1616+
ROLLBACK;
1617+
BEGIN;
1618+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
1619+
COMMIT;
1620+
\c
1621+
REVOKE UPDATE ON lock_table FROM locktable_user;
1622+
-- LOCK TABLE and DELETE permission
1623+
GRANT DELETE ON lock_table TO locktable_user;
1624+
SET SESSION AUTHORIZATION locktable_user;
1625+
BEGIN;
1626+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
1627+
COMMIT;
1628+
BEGIN;
1629+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
1630+
ERROR: permission denied for relation lock_table
1631+
ROLLBACK;
1632+
BEGIN;
1633+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
1634+
COMMIT;
1635+
\c
1636+
REVOKE DELETE ON lock_table FROM locktable_user;
1637+
-- LOCK TABLE and TRUNCATE permission
1638+
GRANT TRUNCATE ON lock_table TO locktable_user;
1639+
SET SESSION AUTHORIZATION locktable_user;
1640+
BEGIN;
1641+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
1642+
COMMIT;
1643+
BEGIN;
1644+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
1645+
ERROR: permission denied for relation lock_table
1646+
ROLLBACK;
1647+
BEGIN;
1648+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
1649+
COMMIT;
1650+
\c
1651+
REVOKE TRUNCATE ON lock_table FROM locktable_user;
1652+
-- clean up
1653+
DROP TABLE lock_table;
1654+
DROP USER locktable_user;

‎src/test/regress/sql/privileges.sql

+84
Original file line numberDiff line numberDiff line change
@@ -975,3 +975,87 @@ DROP USER regressuser3;
975975
DROP USER regressuser4;
976976
DROP USER regressuser5;
977977
DROP USER regressuser6;
978+
979+
980+
-- permissions with LOCK TABLE
981+
CREATE USER locktable_user;
982+
CREATE TABLE lock_table (a int);
983+
984+
-- LOCK TABLE and SELECT permission
985+
GRANT SELECT ON lock_table TO locktable_user;
986+
SET SESSION AUTHORIZATION locktable_user;
987+
BEGIN;
988+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should fail
989+
ROLLBACK;
990+
BEGIN;
991+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should pass
992+
COMMIT;
993+
BEGIN;
994+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should fail
995+
ROLLBACK;
996+
\c
997+
REVOKE SELECT ON lock_table FROM locktable_user;
998+
999+
-- LOCK TABLE and INSERT permission
1000+
GRANT INSERT ON lock_table TO locktable_user;
1001+
SET SESSION AUTHORIZATION locktable_user;
1002+
BEGIN;
1003+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
1004+
COMMIT;
1005+
BEGIN;
1006+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
1007+
ROLLBACK;
1008+
BEGIN;
1009+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should fail
1010+
ROLLBACK;
1011+
\c
1012+
REVOKE INSERT ON lock_table FROM locktable_user;
1013+
1014+
-- LOCK TABLE and UPDATE permission
1015+
GRANT UPDATE ON lock_table TO locktable_user;
1016+
SET SESSION AUTHORIZATION locktable_user;
1017+
BEGIN;
1018+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
1019+
COMMIT;
1020+
BEGIN;
1021+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
1022+
ROLLBACK;
1023+
BEGIN;
1024+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
1025+
COMMIT;
1026+
\c
1027+
REVOKE UPDATE ON lock_table FROM locktable_user;
1028+
1029+
-- LOCK TABLE and DELETE permission
1030+
GRANT DELETE ON lock_table TO locktable_user;
1031+
SET SESSION AUTHORIZATION locktable_user;
1032+
BEGIN;
1033+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
1034+
COMMIT;
1035+
BEGIN;
1036+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
1037+
ROLLBACK;
1038+
BEGIN;
1039+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
1040+
COMMIT;
1041+
\c
1042+
REVOKE DELETE ON lock_table FROM locktable_user;
1043+
1044+
-- LOCK TABLE and TRUNCATE permission
1045+
GRANT TRUNCATE ON lock_table TO locktable_user;
1046+
SET SESSION AUTHORIZATION locktable_user;
1047+
BEGIN;
1048+
LOCK TABLE lock_table IN ROW EXCLUSIVE MODE; -- should pass
1049+
COMMIT;
1050+
BEGIN;
1051+
LOCK TABLE lock_table IN ACCESS SHARE MODE; -- should fail
1052+
ROLLBACK;
1053+
BEGIN;
1054+
LOCK TABLE lock_table IN ACCESS EXCLUSIVE MODE; -- should pass
1055+
COMMIT;
1056+
\c
1057+
REVOKE TRUNCATE ON lock_table FROM locktable_user;
1058+
1059+
-- clean up
1060+
DROP TABLE lock_table;
1061+
DROP USER locktable_user;

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