diff -U3 /tmp/cirrus-ci-build/contrib/hstore_plperl/expected/hstore_plperl.out /tmp/cirrus-ci-build/build/testrun/hstore_plperl/regress/results/hstore_plperl.out
--- /tmp/cirrus-ci-build/contrib/hstore_plperl/expected/hstore_plperl.out	2024-03-21 16:29:25.565749000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/hstore_plperl/regress/results/hstore_plperl.out	2024-03-21 16:47:53.665067000 +0000
@@ -7,6 +7,7 @@
 FROM information_schema.transforms JOIN information_schema.routines
      USING (specific_catalog, specific_schema, specific_name)
 ORDER BY 1, 2, 5, 6;
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  udt_schema | udt_name | routine_schema |   routine_name   | group_name | transform_type 
 ------------+----------+----------------+------------------+------------+----------------
  public     | hstore   | public         | hstore_to_plperl | plperl     | FROM SQL
diff -U3 /tmp/cirrus-ci-build/contrib/hstore_plperl/expected/hstore_plperlu.out /tmp/cirrus-ci-build/build/testrun/hstore_plperl/regress/results/hstore_plperlu.out
--- /tmp/cirrus-ci-build/contrib/hstore_plperl/expected/hstore_plperlu.out	2024-03-21 16:29:25.565758000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/hstore_plperl/regress/results/hstore_plperlu.out	2024-03-21 16:47:53.790764000 +0000
@@ -7,6 +7,7 @@
 FROM information_schema.transforms JOIN information_schema.routines
      USING (specific_catalog, specific_schema, specific_name)
 ORDER BY 1, 2, 5, 6;
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  udt_schema | udt_name | routine_schema |   routine_name    | group_name | transform_type 
 ------------+----------+----------------+-------------------+------------+----------------
  public     | hstore   | public         | hstore_to_plperlu | plperlu    | FROM SQL