diff -U3 /tmp/cirrus-ci-build/contrib/tcn/expected/tcn.out /tmp/cirrus-ci-build/build-32/testrun/tcn/isolation/results/tcn.out
--- /tmp/cirrus-ci-build/contrib/tcn/expected/tcn.out	2024-03-27 22:35:07.803340159 +0000
+++ /tmp/cirrus-ci-build/build-32/testrun/tcn/isolation/results/tcn.out	2024-03-27 22:42:05.827247807 +0000
@@ -2,12 +2,7 @@
 
 starting permutation: listen insert insert2 update delete
 step listen: LISTEN mychannel;
-step insert: INSERT INTO mytable VALUES(1, 'one');
-s1: NOTIFY "mychannel" with payload ""mytable",I,"key"='1'" from s1
-step insert2: INSERT INTO mytable VALUES(2, 'two');
-s1: NOTIFY "mychannel" with payload ""mytable",I,"key"='2'" from s1
-step update: UPDATE mytable SET value = 'foo' WHERE key = 2;
-s1: NOTIFY "mychannel" with payload ""mytable",U,"key"='2'" from s1
-step delete: DELETE FROM mytable;
-s1: NOTIFY "mychannel" with payload ""mytable",D,"key"='1'" from s1
-s1: NOTIFY "mychannel" with payload ""mytable",D,"key"='2'" from s1
+PQconsumeInput failed: server closed the connection unexpectedly
+	This probably means the server terminated abnormally
+	before or while processing the request.
+