1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
\set VERBOSITY terse
-- predictability
SET synchronous_commit = on;
CREATE TABLE xpto (a SERIAL PRIMARY KEY, b text);
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'wal2json');
INSERT INTO xpto (b) VALUES('john');
INSERT INTO xpto (b) VALUES('smith');
INSERT INTO xpto (b) VALUES('robert');
BEGIN;
INSERT INTO xpto (b) VALUES('marie');
SAVEPOINT sp1;
INSERT INTO xpto (b) VALUES('ernesto');
SAVEPOINT sp2;
INSERT INTO xpto (b) VALUES('peter'); -- discard
SAVEPOINT sp3;
INSERT INTO xpto (b) VALUES('albert'); -- discard
ROLLBACK TO SAVEPOINT sp2;
RELEASE SAVEPOINT sp1;
INSERT INTO xpto (b) VALUES('francisco');
END;
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'format-version', '1', 'pretty-print', '1', 'include-typmod', '0');
SELECT 'stop' FROM pg_drop_replication_slot('regression_slot');
|
