mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-31 05:17:24 +02:00
The regression tests for contrib/test_decoding regularly failed on postgres instances that were very slow. Either because the hardware itself was slow or because very expensive debugging options like CLOBBER_CACHE_ALWAYS were used. The reason they failed was just that some additional transactions were decoded. Analyze and vacuum, triggered by autovac. To fix just add a option to test_decoding to only display transactions in which a change was actually displayed. That's not pretty because it removes information from the tests; but better than constantly failing tests in very likely harmless ways. Backpatch to 9.4 where logical decoding was introduced. Discussion: 20140629142511.GA26930@awork2.anarazel.de
70 lines
2.3 KiB
SQL
70 lines
2.3 KiB
SQL
-- predictability
|
|
SET synchronous_commit = on;
|
|
|
|
-- setup
|
|
CREATE ROLE lr_normal;
|
|
CREATE ROLE lr_superuser SUPERUSER;
|
|
CREATE ROLE lr_replication REPLICATION;
|
|
CREATE TABLE lr_test(data text);
|
|
|
|
-- superuser can control replication
|
|
SET ROLE lr_superuser;
|
|
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
|
|
INSERT INTO lr_test VALUES('lr_superuser_init');
|
|
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
SELECT pg_drop_replication_slot('regression_slot');
|
|
RESET ROLE;
|
|
|
|
-- replication user can control replication
|
|
SET ROLE lr_replication;
|
|
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
|
|
INSERT INTO lr_test VALUES('lr_superuser_init');
|
|
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
SELECT pg_drop_replication_slot('regression_slot');
|
|
RESET ROLE;
|
|
|
|
-- plain user *can't* can control replication
|
|
SET ROLE lr_normal;
|
|
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
|
|
INSERT INTO lr_test VALUES('lr_superuser_init');
|
|
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
SELECT pg_drop_replication_slot('regression_slot');
|
|
RESET ROLE;
|
|
|
|
-- replication users can drop superuser created slots
|
|
SET ROLE lr_superuser;
|
|
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
|
|
RESET ROLE;
|
|
SET ROLE lr_replication;
|
|
SELECT pg_drop_replication_slot('regression_slot');
|
|
RESET ROLE;
|
|
|
|
-- normal users can't drop existing slots
|
|
SET ROLE lr_superuser;
|
|
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
|
|
RESET ROLE;
|
|
SET ROLE lr_normal;
|
|
SELECT pg_drop_replication_slot('regression_slot');
|
|
RESET ROLE;
|
|
|
|
-- all users can see existing slots
|
|
SET ROLE lr_superuser;
|
|
SELECT slot_name, plugin FROM pg_replication_slots;
|
|
RESET ROLE;
|
|
|
|
SET ROLE lr_replication;
|
|
SELECT slot_name, plugin FROM pg_replication_slots;
|
|
RESET ROLE;
|
|
|
|
SET ROLE lr_normal;
|
|
SELECT slot_name, plugin FROM pg_replication_slots;
|
|
RESET ROLE;
|
|
|
|
-- cleanup
|
|
SELECT pg_drop_replication_slot('regression_slot');
|
|
|
|
DROP ROLE lr_normal;
|
|
DROP ROLE lr_superuser;
|
|
DROP ROLE lr_replication;
|
|
DROP TABLE lr_test;
|