postgresql/contrib/test_decoding/expected/binary.out
Andres Freund eef34e5236 test_decoding: Protect against rare spurious test failures.
A bunch of tests missed specifying that empty transactions shouldn't be
displayed. That causes problems when e.g. autovacuum runs in an
unfortunate moment. The tests in question only run for a very short
time, making this quite unlikely.

Reported-By: Buildfarm member axolotl
Backpatch: 9.4, where logical decoding was introduced
2015-09-22 15:39:46 +02:00

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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)
-- succeeds, textual plugin, textual consumer
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'force-binary', '0', 'skip-empty-xacts', '1');
data
------
(0 rows)
-- fails, binary plugin, textual consumer
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'force-binary', '1', 'skip-empty-xacts', '1');
ERROR: logical decoding output plugin "test_decoding" produces binary output, but "pg_logical_slot_get_changes(name,pg_lsn,integer,text[])" expects textual data
-- succeeds, textual plugin, binary consumer
SELECT data FROM pg_logical_slot_get_binary_changes('regression_slot', NULL, NULL, 'force-binary', '0', 'skip-empty-xacts', '1');
data
------
(0 rows)
-- succeeds, binary plugin, binary consumer
SELECT data FROM pg_logical_slot_get_binary_changes('regression_slot', NULL, NULL, 'force-binary', '1', 'skip-empty-xacts', '1');
data
------
(0 rows)
SELECT 'init' FROM pg_drop_replication_slot('regression_slot');
?column?
----------
init
(1 row)