postgresql/contrib/test_decoding/sql/permissions.sql

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-- 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');
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');
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');
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;