Adding upstream version 15.4.upstream/15.4upstream

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

1 files changed, 33 insertions, 0 deletions

diff --git a/contrib/test_decoding/sql/xact.sql b/contrib/test_decoding/sql/xact.sql
new file mode 100644
index 0000000..aa55591
--- /dev/null
+++ b/contrib/test_decoding/sql/xact.sql
@@ -0,0 +1,33 @@
+-- predictability
+SET synchronous_commit = on;
+
+SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
+
+CREATE TABLE xact_test(data text);
+INSERT INTO xact_test VALUES ('before-test');
+
+-- bug #13844, xids in non-decoded records need to be inspected
+BEGIN;
+-- perform operation in xact that creates and logs xid, but isn't decoded
+SELECT * FROM xact_test FOR UPDATE;
+SAVEPOINT foo;
+-- and now actually insert in subxact, xid is expected to be known
+INSERT INTO xact_test VALUES ('after-assignment');
+COMMIT;
+-- and now show those changes
+SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
+
+-- bug #14279, do not propagate null snapshot from subtransaction
+BEGIN;
+-- first insert
+INSERT INTO xact_test VALUES ('main-txn');
+SAVEPOINT foo;
+-- now perform operation in subxact that creates and logs xid, but isn't decoded
+SELECT 1 FROM xact_test FOR UPDATE LIMIT 1;
+COMMIT;
+-- and now show those changes
+SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
+
+DROP TABLE xact_test;
+
+SELECT pg_drop_replication_slot('regression_slot');