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|
-- predictability
SET synchronous_commit = on;
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
?column?
----------
init
(1 row)
SELECT 'msg1' FROM pg_logical_emit_message(true, 'test', 'msg1');
?column?
----------
msg1
(1 row)
SELECT 'msg2' FROM pg_logical_emit_message(false, 'test', 'msg2');
?column?
----------
msg2
(1 row)
BEGIN;
SELECT 'msg3' FROM pg_logical_emit_message(true, 'test', 'msg3');
?column?
----------
msg3
(1 row)
SELECT 'msg4' FROM pg_logical_emit_message(false, 'test', 'msg4');
?column?
----------
msg4
(1 row)
ROLLBACK;
BEGIN;
SELECT 'msg5' FROM pg_logical_emit_message(true, 'test', 'msg5');
?column?
----------
msg5
(1 row)
SELECT 'msg6' FROM pg_logical_emit_message(false, 'test', 'msg6');
?column?
----------
msg6
(1 row)
SELECT 'msg7' FROM pg_logical_emit_message(true, 'test', 'msg7');
?column?
----------
msg7
(1 row)
COMMIT;
SELECT 'ignorethis' FROM pg_logical_emit_message(true, 'test', 'czechtastic');
?column?
------------
ignorethis
(1 row)
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'force-binary', '0', 'skip-empty-xacts', '1');
data
--------------------------------------------------------------------
message: transactional: 1 prefix: test, sz: 4 content:msg1
message: transactional: 0 prefix: test, sz: 4 content:msg2
message: transactional: 0 prefix: test, sz: 4 content:msg4
message: transactional: 0 prefix: test, sz: 4 content:msg6
message: transactional: 1 prefix: test, sz: 4 content:msg5
message: transactional: 1 prefix: test, sz: 4 content:msg7
message: transactional: 1 prefix: test, sz: 11 content:czechtastic
(7 rows)
-- test db filtering
\set prevdb :DBNAME
\c template1
SELECT 'otherdb1' FROM pg_logical_emit_message(false, 'test', 'otherdb1');
?column?
----------
otherdb1
(1 row)
SELECT 'otherdb2' FROM pg_logical_emit_message(true, 'test', 'otherdb2');
?column?
----------
otherdb2
(1 row)
\c :prevdb
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'force-binary', '0', 'skip-empty-xacts', '1');
data
------
(0 rows)
SELECT 'cleanup' FROM pg_drop_replication_slot('regression_slot');
?column?
----------
cleanup
(1 row)
|
