postgresql/contrib/test_decoding/sql/messages.sql
Amit Kapila 26dd0284b9 Add BEGIN/COMMIT for transactional messages during decoding.
In test_decoding module, when skip_empty_xacts option was specified, add
BEGIN/COMMIT for transactional messages. This makes the handling of
transactional messages consistent irrespective of whether skip_empty_xacts
option was specified.

We decided not to backpatch this change because skip_empty_xacts is
primarily used to have consistent test results across different runs and
this change won't help with that.

Author: Vignesh C
Reviewed-by: Ashutosh Bapat, Hou Zhijie
Discussion: https://postgr.es/m/CAExHW5ujRhbOz6_aTq_jQA8NjeFqq9d_8G9viShWvXx8gdSXiQ@mail.gmail.com
2023-07-11 08:31:11 +05:30

35 lines
1.2 KiB
PL/PgSQL

-- predictability
SET synchronous_commit = on;
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
SELECT 'msg1' FROM pg_logical_emit_message(true, 'test', 'msg1');
SELECT 'msg2' FROM pg_logical_emit_message(false, 'test', 'msg2');
BEGIN;
SELECT 'msg3' FROM pg_logical_emit_message(true, 'test', 'msg3');
SELECT 'msg4' FROM pg_logical_emit_message(false, 'test', 'msg4');
ROLLBACK;
BEGIN;
SELECT 'msg5' FROM pg_logical_emit_message(true, 'test', 'msg5');
SELECT 'msg6' FROM pg_logical_emit_message(false, 'test', 'msg6');
SELECT 'msg7' FROM pg_logical_emit_message(true, 'test', 'msg7');
COMMIT;
SELECT 'ignorethis' FROM pg_logical_emit_message(true, 'test', 'czechtastic');
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'force-binary', '0', 'skip-empty-xacts', '1', 'include-xids', '0');
-- test db filtering
\set prevdb :DBNAME
\c template1
SELECT 'otherdb1' FROM pg_logical_emit_message(false, 'test', 'otherdb1');
SELECT 'otherdb2' FROM pg_logical_emit_message(true, 'test', 'otherdb2');
\c :prevdb
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'force-binary', '0', 'skip-empty-xacts', '1');
SELECT 'cleanup' FROM pg_drop_replication_slot('regression_slot');