contrib/test_decoding/expected/twophase_stream.out - master - githubmirror/postgres

contrib/test_decoding/expected/twophase_stream.out
130 строк5 KB
Amit Kapila
Add STREAM_START/STREAM_STOP for transactional messages during decoding.
30 окт 2023, 12:06
30 окт 2023, 12:0657891c2
-- Test streaming of two-phase commits
SET synchronous_commit = on;
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding', false, true);
 ?column? 
----------
 init
(1 row)

CREATE TABLE stream_test(data text);
-- consume DDL
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
 data 
------
(0 rows)

-- streaming test with sub-transaction and PREPARE/COMMIT PREPARED
BEGIN;
SAVEPOINT s1;
SELECT 'msg5' FROM pg_logical_emit_message(true, 'test', repeat('a', 50));
 ?column? 
----------
 msg5
(1 row)

INSERT INTO stream_test SELECT repeat('a', 2000) || g.i FROM generate_series(1, 35) g(i);
TRUNCATE table stream_test;
ROLLBACK TO s1;
INSERT INTO stream_test SELECT repeat('a', 10) || g.i FROM generate_series(1, 20) g(i);
PREPARE TRANSACTION 'test1';
-- should show the inserts after a ROLLBACK
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
                           data                           
----------------------------------------------------------
 opening a streamed block for transaction
 streaming message: transactional: 1 prefix: test, sz: 50
 closing a streamed block for transaction
 aborting streamed (sub)transaction
 opening a streamed block for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 streaming change for transaction
 closing a streamed block for transaction
 preparing streamed transaction 'test1'
(27 rows)

COMMIT PREPARED 'test1';
--should show the COMMIT PREPARED and the other changes in the transaction
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
          data           
-------------------------
 COMMIT PREPARED 'test1'
(1 row)

-- streaming test with sub-transaction and PREPARE/COMMIT PREPARED but with
-- filtered gid. gids with '_nodecode' will not be decoded at prepare time.
BEGIN;
SAVEPOINT s1;
SELECT 'msg5' FROM pg_logical_emit_message(true, 'test', repeat('a', 50));
 ?column? 
----------
 msg5
(1 row)

INSERT INTO stream_test SELECT repeat('a', 2000) || g.i FROM generate_series(1, 35) g(i);
TRUNCATE table stream_test;
ROLLBACK to s1;
INSERT INTO stream_test SELECT repeat('a', 10) || g.i FROM generate_series(1, 20) g(i);
PREPARE TRANSACTION 'test1_nodecode';
-- should NOT show inserts after a ROLLBACK
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
                           data                           
----------------------------------------------------------
 opening a streamed block for transaction
 streaming message: transactional: 1 prefix: test, sz: 50
 closing a streamed block for transaction
 aborting streamed (sub)transaction
(4 rows)

COMMIT PREPARED 'test1_nodecode';
-- should show the inserts but not show a COMMIT PREPARED but a COMMIT
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
                            data                             
-------------------------------------------------------------
 BEGIN
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa1'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa2'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa3'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa4'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa5'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa6'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa7'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa8'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa9'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa10'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa11'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa12'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa13'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa14'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa15'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa16'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa17'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa18'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa19'
 table public.stream_test: INSERT: data[text]:'aaaaaaaaaa20'
 COMMIT
(22 rows)

DROP TABLE stream_test;
SELECT pg_drop_replication_slot('regression_slot');
 pg_drop_replication_slot 
--------------------------
 
(1 row)