Adding upstream version 15.4.upstream/15.4upstream

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

1 files changed, 45 insertions, 0 deletions

diff --git a/contrib/test_decoding/sql/twophase_stream.sql b/contrib/test_decoding/sql/twophase_stream.sql
new file mode 100644
index 0000000..646076d
--- /dev/null
+++ b/contrib/test_decoding/sql/twophase_stream.sql
@@ -0,0 +1,45 @@
+-- Test streaming of two-phase commits
+
+SET synchronous_commit = on;
+SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding', false, true);
+
+CREATE TABLE stream_test(data text);
+
+-- consume DDL
+SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
+
+-- streaming test with sub-transaction and PREPARE/COMMIT PREPARED
+BEGIN;
+SAVEPOINT s1;
+SELECT 'msg5' FROM pg_logical_emit_message(true, 'test', repeat('a', 50));
+INSERT INTO stream_test SELECT repeat('a', 2000) || g.i FROM generate_series(1, 35) g(i);
+TRUNCATE table stream_test;
+ROLLBACK TO s1;
+INSERT INTO stream_test SELECT repeat('a', 10) || g.i FROM generate_series(1, 20) g(i);
+PREPARE TRANSACTION 'test1';
+-- should show the inserts after a ROLLBACK
+SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
+
+COMMIT PREPARED 'test1';
+--should show the COMMIT PREPARED and the other changes in the transaction
+SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
+
+-- streaming test with sub-transaction and PREPARE/COMMIT PREPARED but with
+-- filtered gid. gids with '_nodecode' will not be decoded at prepare time.
+BEGIN;
+SAVEPOINT s1;
+SELECT 'msg5' FROM pg_logical_emit_message(true, 'test', repeat('a', 50));
+INSERT INTO stream_test SELECT repeat('a', 2000) || g.i FROM generate_series(1, 35) g(i);
+TRUNCATE table stream_test;
+ROLLBACK to s1;
+INSERT INTO stream_test SELECT repeat('a', 10) || g.i FROM generate_series(1, 20) g(i);
+PREPARE TRANSACTION 'test1_nodecode';
+-- should NOT show inserts after a ROLLBACK
+SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
+
+COMMIT PREPARED 'test1_nodecode';
+-- should show the inserts but not show a COMMIT PREPARED but a COMMIT
+SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL,NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'stream-changes', '1');
+
+DROP TABLE stream_test;
+SELECT pg_drop_replication_slot('regression_slot');