Adding upstream version 15.4.upstream/15.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/contrib/test_decoding/sql/time.sql b/contrib/test_decoding/sql/time.sql
new file mode 100644
index 0000000..a47c973
--- /dev/null
+++ b/contrib/test_decoding/sql/time.sql
@@ -0,0 +1,22 @@
+SET synchronous_commit = on;
+
+CREATE TABLE test_time(data text);
+
+-- remember the current time
+SELECT set_config('test.time_before', NOW()::text, false) IS NOT NULL;
+
+SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
+
+-- a single transaction, to get the commit time
+INSERT INTO test_time(data) VALUES ('');
+
+-- parse the commit time from the changeset
+SELECT set_config('test.time_after', regexp_replace(data, '^COMMIT \(at (.*)\)$', '\1'), false) IS NOT NULL
+FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'include-timestamp', '1')
+WHERE data ~ 'COMMIT' LIMIT 1;
+
+-- ensure commit time is sane in relation to the previous time
+SELECT (time_after - time_before) <= '10 minutes'::interval, time_after >= time_before
+FROM (SELECT current_setting('test.time_after')::timestamptz AS time_after, (SELECT current_setting('test.time_before')::timestamptz) AS time_before) AS d;
+
+SELECT pg_drop_replication_slot('regression_slot');