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-- predictability
SET synchronous_commit = on;
CREATE TABLE origin_tbl(id serial primary key, data text);
CREATE TABLE target_tbl(id serial primary key, data text);
SELECT pg_replication_origin_create('regress_test_decoding: regression_slot');
pg_replication_origin_create
------------------------------
1
(1 row)
-- ensure duplicate creations fail
SELECT pg_replication_origin_create('regress_test_decoding: regression_slot');
ERROR: duplicate key value violates unique constraint "pg_replication_origin_roname_index"
DETAIL: Key (roname)=(regress_test_decoding: regression_slot) already exists.
--ensure deletions work (once)
SELECT pg_replication_origin_create('regress_test_decoding: temp');
pg_replication_origin_create
------------------------------
2
(1 row)
SELECT pg_replication_origin_drop('regress_test_decoding: temp');
pg_replication_origin_drop
----------------------------
(1 row)
SELECT pg_replication_origin_drop('regress_test_decoding: temp');
ERROR: replication origin "regress_test_decoding: temp" does not exist
-- various failure checks for undefined slots
select pg_replication_origin_advance('regress_test_decoding: temp', '0/1');
ERROR: replication origin "regress_test_decoding: temp" does not exist
select pg_replication_origin_session_setup('regress_test_decoding: temp');
ERROR: replication origin "regress_test_decoding: temp" does not exist
select pg_replication_origin_progress('regress_test_decoding: temp', true);
ERROR: replication origin "regress_test_decoding: temp" does not exist
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
?column?
----------
init
(1 row)
-- origin tx
INSERT INTO origin_tbl(data) VALUES ('will be replicated and decoded and decoded again');
INSERT INTO target_tbl(data)
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
-- as is normal, the insert into target_tbl shows up
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
data
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BEGIN
table public.target_tbl: INSERT: id[integer]:1 data[text]:'BEGIN'
table public.target_tbl: INSERT: id[integer]:2 data[text]:'table public.origin_tbl: INSERT: id[integer]:1 data[text]:''will be replicated and decoded and decoded again'''
table public.target_tbl: INSERT: id[integer]:3 data[text]:'COMMIT'
COMMIT
(5 rows)
INSERT INTO origin_tbl(data) VALUES ('will be replicated, but not decoded again');
-- mark session as replaying
SELECT pg_replication_origin_session_setup('regress_test_decoding: regression_slot');
pg_replication_origin_session_setup
-------------------------------------
(1 row)
-- ensure we prevent duplicate setup
SELECT pg_replication_origin_session_setup('regress_test_decoding: regression_slot');
ERROR: cannot setup replication origin when one is already setup
SELECT '' FROM pg_logical_emit_message(false, 'test', 'this message will not be decoded');
?column?
----------
(1 row)
BEGIN;
-- setup transaction origin
SELECT pg_replication_origin_xact_setup('0/aabbccdd', '2013-01-01 00:00');
pg_replication_origin_xact_setup
----------------------------------
(1 row)
INSERT INTO target_tbl(data)
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'only-local', '1');
COMMIT;
-- check replication progress for the session is correct
SELECT pg_replication_origin_session_progress(false);
pg_replication_origin_session_progress
----------------------------------------
0/AABBCCDD
(1 row)
SELECT pg_replication_origin_session_progress(true);
pg_replication_origin_session_progress
----------------------------------------
0/AABBCCDD
(1 row)
SELECT pg_replication_origin_session_reset();
pg_replication_origin_session_reset
-------------------------------------
(1 row)
SELECT local_id, external_id, remote_lsn, local_lsn <> '0/0' FROM pg_replication_origin_status;
local_id | external_id | remote_lsn | ?column?
----------+----------------------------------------+------------+----------
1 | regress_test_decoding: regression_slot | 0/AABBCCDD | t
(1 row)
-- check replication progress identified by name is correct
SELECT pg_replication_origin_progress('regress_test_decoding: regression_slot', false);
pg_replication_origin_progress
--------------------------------
0/AABBCCDD
(1 row)
SELECT pg_replication_origin_progress('regress_test_decoding: regression_slot', true);
pg_replication_origin_progress
--------------------------------
0/AABBCCDD
(1 row)
-- ensure reset requires previously setup state
SELECT pg_replication_origin_session_reset();
ERROR: no replication origin is configured
-- and magically the replayed xact will be filtered!
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'only-local', '1');
data
------
(0 rows)
--but new original changes still show up
INSERT INTO origin_tbl(data) VALUES ('will be replicated');
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'only-local', '1');
data
--------------------------------------------------------------------------------
BEGIN
table public.origin_tbl: INSERT: id[integer]:3 data[text]:'will be replicated'
COMMIT
(3 rows)
SELECT pg_drop_replication_slot('regression_slot');
pg_drop_replication_slot
--------------------------
(1 row)
SELECT pg_replication_origin_drop('regress_test_decoding: regression_slot');
pg_replication_origin_drop
----------------------------
(1 row)
|
