mirror of
https://github.com/postgres/postgres.git
synced 2025-10-29 22:49:41 +03:00
2c7ea57e56
This reverts a sequence of commits, implementing features related to logical decoding and replication of sequences: -0da92dc530-80901b3291-b779d7d8fd-d5ed9da41d-a180c2b34d-75b1521dae-2d2232933b-002c9dd97a-05843b1aa4The implementation has issues, mostly due to combining transactional and non-transactional behavior of sequences. It's not clear how this could be fixed, but it'll require reworking significant part of the patch. Discussion: https://postgr.es/m/95345a19-d508-63d1-860a-f5c2f41e8d40@enterprisedb.com
112 lines
6.5 KiB
Plaintext
112 lines
6.5 KiB
Plaintext
-- test that we can insert the result of a get_changes call into a
|
|
-- logged relation. That's really not a good idea in practical terms,
|
|
-- but provides a nice test.
|
|
-- predictability
|
|
SET synchronous_commit = on;
|
|
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
|
|
?column?
|
|
----------
|
|
init
|
|
(1 row)
|
|
|
|
-- slot works
|
|
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
data
|
|
------
|
|
(0 rows)
|
|
|
|
-- create some changes
|
|
CREATE TABLE somechange(id serial primary key);
|
|
INSERT INTO somechange DEFAULT VALUES;
|
|
CREATE TABLE changeresult AS
|
|
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
SELECT * FROM changeresult;
|
|
data
|
|
------------------------------------------------
|
|
BEGIN
|
|
table public.somechange: INSERT: id[integer]:1
|
|
COMMIT
|
|
(3 rows)
|
|
|
|
INSERT INTO changeresult
|
|
SELECT data FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
INSERT INTO changeresult
|
|
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
SELECT * FROM changeresult;
|
|
data
|
|
--------------------------------------------------------------------------------------------------------------------------------------------------
|
|
BEGIN
|
|
table public.somechange: INSERT: id[integer]:1
|
|
COMMIT
|
|
BEGIN
|
|
table public.changeresult: INSERT: data[text]:'BEGIN'
|
|
table public.changeresult: INSERT: data[text]:'table public.somechange: INSERT: id[integer]:1'
|
|
table public.changeresult: INSERT: data[text]:'COMMIT'
|
|
COMMIT
|
|
BEGIN
|
|
table public.changeresult: INSERT: data[text]:'BEGIN'
|
|
table public.changeresult: INSERT: data[text]:'table public.somechange: INSERT: id[integer]:1'
|
|
table public.changeresult: INSERT: data[text]:'COMMIT'
|
|
COMMIT
|
|
BEGIN
|
|
table public.changeresult: INSERT: data[text]:'BEGIN'
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''BEGIN'''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.somechange: INSERT: id[integer]:1'''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''COMMIT'''
|
|
table public.changeresult: INSERT: data[text]:'COMMIT'
|
|
COMMIT
|
|
(20 rows)
|
|
|
|
DROP TABLE changeresult;
|
|
DROP TABLE somechange;
|
|
-- check calling logical decoding from pl/pgsql
|
|
CREATE FUNCTION slot_changes_wrapper(slot_name name) RETURNS SETOF TEXT AS $$
|
|
BEGIN
|
|
RETURN QUERY
|
|
SELECT data FROM pg_logical_slot_peek_changes(slot_name, NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
END$$ LANGUAGE plpgsql;
|
|
SELECT * FROM slot_changes_wrapper('regression_slot');
|
|
slot_changes_wrapper
|
|
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
BEGIN
|
|
table public.changeresult: INSERT: data[text]:'BEGIN'
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''BEGIN'''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.somechange: INSERT: id[integer]:1'''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''COMMIT'''
|
|
table public.changeresult: INSERT: data[text]:'COMMIT'
|
|
table public.changeresult: INSERT: data[text]:'BEGIN'
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''BEGIN'''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.changeresult: INSERT: data[text]:''''BEGIN'''''''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.changeresult: INSERT: data[text]:''''table public.somechange: INSERT: id[integer]:1'''''''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.changeresult: INSERT: data[text]:''''COMMIT'''''''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''COMMIT'''
|
|
table public.changeresult: INSERT: data[text]:'COMMIT'
|
|
COMMIT
|
|
(14 rows)
|
|
|
|
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
|
data
|
|
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
BEGIN
|
|
table public.changeresult: INSERT: data[text]:'BEGIN'
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''BEGIN'''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.somechange: INSERT: id[integer]:1'''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''COMMIT'''
|
|
table public.changeresult: INSERT: data[text]:'COMMIT'
|
|
table public.changeresult: INSERT: data[text]:'BEGIN'
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''BEGIN'''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.changeresult: INSERT: data[text]:''''BEGIN'''''''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.changeresult: INSERT: data[text]:''''table public.somechange: INSERT: id[integer]:1'''''''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''table public.changeresult: INSERT: data[text]:''''COMMIT'''''''
|
|
table public.changeresult: INSERT: data[text]:'table public.changeresult: INSERT: data[text]:''COMMIT'''
|
|
table public.changeresult: INSERT: data[text]:'COMMIT'
|
|
COMMIT
|
|
(14 rows)
|
|
|
|
SELECT 'stop' FROM pg_drop_replication_slot('regression_slot');
|
|
?column?
|
|
----------
|
|
stop
|
|
(1 row)
|
|
|