diff -U3 /home/postgres/postgres/contrib/pg_prewarm/expected/pg_prewarm.out /home/postgres/postgres/build/testrun/pg_prewarm/regress/results/pg_prewarm.out
--- /home/postgres/postgres/contrib/pg_prewarm/expected/pg_prewarm.out	2025-12-05 14:34:20.831440563 +0000
+++ /home/postgres/postgres/build/testrun/pg_prewarm/regress/results/pg_prewarm.out	2025-12-05 14:37:38.326678647 +0000
@@ -2,9 +2,7 @@
 CREATE EXTENSION pg_prewarm;
 -- pg_prewarm() should fail if the target relation has no storage.
 CREATE TABLE test (c1 int) PARTITION BY RANGE (c1);
-SELECT pg_prewarm('test', 'buffer');
-ERROR:  relation "test" does not have storage
-DETAIL:  This operation is not supported for partitioned tables.
--- Cleanup
-DROP TABLE test;
-DROP EXTENSION pg_prewarm;
+server closed the connection unexpectedly
+	This probably means the server terminated abnormally
+	before or while processing the request.
+connection to server was lost