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Code

Regression tests for LOCK TABLE.

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Robins Tharakan, reviewed by Szymon Guz, substantially revised by me.
This commit is contained in:
Robert Haas 2013-07-15 12:29:34 -04:00
parent 67ccbb080d
commit ac33c7e2c1
4 changed files with 130 additions and 1 deletions
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62
src/test/regress/expected/lock.out Normal file
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@ -0,0 +1,62 @@
--
-- Test the LOCK statement
--
-- Setup
CREATE SCHEMA lock_schema1;
SET search_path = lock_schema1;
CREATE TABLE lock_tbl1 (a BIGINT);
CREATE VIEW lock_view1 AS SELECT 1;
CREATE ROLE regress_rol_lock1;
ALTER ROLE regress_rol_lock1 SET search_path = lock_schema1;
GRANT USAGE ON SCHEMA lock_schema1 TO regress_rol_lock1;
-- Try all valid lock options; also try omitting the optional TABLE keyword.
BEGIN TRANSACTION;
LOCK TABLE lock_tbl1 IN ACCESS SHARE MODE;
LOCK lock_tbl1 IN ROW SHARE MODE;
LOCK TABLE lock_tbl1 IN ROW EXCLUSIVE MODE;
LOCK TABLE lock_tbl1 IN SHARE UPDATE EXCLUSIVE MODE;
LOCK TABLE lock_tbl1 IN SHARE MODE;
LOCK lock_tbl1 IN SHARE ROW EXCLUSIVE MODE;
LOCK TABLE lock_tbl1 IN EXCLUSIVE MODE;
LOCK TABLE lock_tbl1 IN ACCESS EXCLUSIVE MODE;
ROLLBACK;
-- Try using NOWAIT along with valid options.
BEGIN TRANSACTION;
LOCK TABLE lock_tbl1 IN ACCESS SHARE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN ROW SHARE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN ROW EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN SHARE UPDATE EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN SHARE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN SHARE ROW EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN ACCESS EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_view1 IN EXCLUSIVE MODE; -- Will fail; can't lock a non-table
ERROR: "lock_view1" is not a table
ROLLBACK;
-- Verify that we can lock a table with inheritance children.
CREATE TABLE lock_tbl2 (b BIGINT) INHERITS (lock_tbl1);
CREATE TABLE lock_tbl3 () INHERITS (lock_tbl2);
BEGIN TRANSACTION;
LOCK TABLE lock_tbl1 * IN ACCESS EXCLUSIVE MODE;
ROLLBACK;
-- Verify that we can't lock a child table just because we have permission
-- on the parent, but that we can lock the parent only.
GRANT UPDATE ON TABLE lock_tbl1 TO regress_rol_lock1;
SET ROLE regress_rol_lock1;
BEGIN;
LOCK TABLE lock_tbl1 * IN ACCESS EXCLUSIVE MODE;
ERROR: permission denied for relation lock_tbl2
ROLLBACK;
BEGIN;
LOCK TABLE ONLY lock_tbl1;
ROLLBACK;
RESET ROLE;
--
-- Clean up
--
DROP VIEW lock_view1;
DROP TABLE lock_tbl3;
DROP TABLE lock_tbl2;
DROP TABLE lock_tbl1;
DROP SCHEMA lock_schema1 CASCADE;
DROP ROLE regress_rol_lock1;

2
src/test/regress/parallel_schedule
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@ -83,7 +83,7 @@ test: select_into select_distinct select_distinct_on select_implicit select_havi
# ---------- # ----------
# Another group of parallel tests # Another group of parallel tests
# ---------- # ----------
test: privileges security_label collate matview test: privileges security_label collate matview lock
# ---------- # ----------
# Another group of parallel tests # Another group of parallel tests

1
src/test/regress/serial_schedule
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@ -96,6 +96,7 @@ test: privileges
test: security_label test: security_label
test: collate test: collate
test: matview test: matview
test: lock
test: alter_generic test: alter_generic
test: misc test: misc
test: psql test: psql

66
src/test/regress/sql/lock.sql Normal file
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--
-- Test the LOCK statement
--
-- Setup
CREATE SCHEMA lock_schema1;
SET search_path = lock_schema1;
CREATE TABLE lock_tbl1 (a BIGINT);
CREATE VIEW lock_view1 AS SELECT 1;
CREATE ROLE regress_rol_lock1;
ALTER ROLE regress_rol_lock1 SET search_path = lock_schema1;
GRANT USAGE ON SCHEMA lock_schema1 TO regress_rol_lock1;
-- Try all valid lock options; also try omitting the optional TABLE keyword.
BEGIN TRANSACTION;
LOCK TABLE lock_tbl1 IN ACCESS SHARE MODE;
LOCK lock_tbl1 IN ROW SHARE MODE;
LOCK TABLE lock_tbl1 IN ROW EXCLUSIVE MODE;
LOCK TABLE lock_tbl1 IN SHARE UPDATE EXCLUSIVE MODE;
LOCK TABLE lock_tbl1 IN SHARE MODE;
LOCK lock_tbl1 IN SHARE ROW EXCLUSIVE MODE;
LOCK TABLE lock_tbl1 IN EXCLUSIVE MODE;
LOCK TABLE lock_tbl1 IN ACCESS EXCLUSIVE MODE;
ROLLBACK;
-- Try using NOWAIT along with valid options.
BEGIN TRANSACTION;
LOCK TABLE lock_tbl1 IN ACCESS SHARE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN ROW SHARE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN ROW EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN SHARE UPDATE EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN SHARE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN SHARE ROW EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_tbl1 IN ACCESS EXCLUSIVE MODE NOWAIT;
LOCK TABLE lock_view1 IN EXCLUSIVE MODE; -- Will fail; can't lock a non-table
ROLLBACK;
-- Verify that we can lock a table with inheritance children.
CREATE TABLE lock_tbl2 (b BIGINT) INHERITS (lock_tbl1);
CREATE TABLE lock_tbl3 () INHERITS (lock_tbl2);
BEGIN TRANSACTION;
LOCK TABLE lock_tbl1 * IN ACCESS EXCLUSIVE MODE;
ROLLBACK;
-- Verify that we can't lock a child table just because we have permission
-- on the parent, but that we can lock the parent only.
GRANT UPDATE ON TABLE lock_tbl1 TO regress_rol_lock1;
SET ROLE regress_rol_lock1;
BEGIN;
LOCK TABLE lock_tbl1 * IN ACCESS EXCLUSIVE MODE;
ROLLBACK;
BEGIN;
LOCK TABLE ONLY lock_tbl1;
ROLLBACK;
RESET ROLE;
--
-- Clean up
--
DROP VIEW lock_view1;
DROP TABLE lock_tbl3;
DROP TABLE lock_tbl2;
DROP TABLE lock_tbl1;
DROP SCHEMA lock_schema1 CASCADE;
DROP ROLE regress_rol_lock1;