diff -U3 /tmp/cirrus-ci-build/contrib/pgstattuple/expected/pgstattuple.out /tmp/cirrus-ci-build/build/testrun/pgstattuple/regress/results/pgstattuple.out
--- /tmp/cirrus-ci-build/contrib/pgstattuple/expected/pgstattuple.out	2024-03-21 16:29:25.572195000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/pgstattuple/regress/results/pgstattuple.out	2024-03-21 16:47:59.889451000 +0000
@@ -6,24 +6,28 @@
 --
 create table test (a int primary key, b int[]);
 select * from pgstattuple('test');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  table_len | tuple_count | tuple_len | tuple_percent | dead_tuple_count | dead_tuple_len | dead_tuple_percent | free_space | free_percent 
 -----------+-------------+-----------+---------------+------------------+----------------+--------------------+------------+--------------
          0 |           0 |         0 |             0 |                0 |              0 |                  0 |          0 |            0
 (1 row)
 
 select * from pgstattuple('test'::text);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  table_len | tuple_count | tuple_len | tuple_percent | dead_tuple_count | dead_tuple_len | dead_tuple_percent | free_space | free_percent 
 -----------+-------------+-----------+---------------+------------------+----------------+--------------------+------------+--------------
          0 |           0 |         0 |             0 |                0 |              0 |                  0 |          0 |            0
 (1 row)
 
 select * from pgstattuple('test'::name);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  table_len | tuple_count | tuple_len | tuple_percent | dead_tuple_count | dead_tuple_len | dead_tuple_percent | free_space | free_percent 
 -----------+-------------+-----------+---------------+------------------+----------------+--------------------+------------+--------------
          0 |           0 |         0 |             0 |                0 |              0 |                  0 |          0 |            0
 (1 row)
 
 select * from pgstattuple('test'::regclass);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  table_len | tuple_count | tuple_len | tuple_percent | dead_tuple_count | dead_tuple_len | dead_tuple_percent | free_space | free_percent 
 -----------+-------------+-----------+---------------+------------------+----------------+--------------------+------------+--------------
          0 |           0 |         0 |             0 |                0 |              0 |                  0 |          0 |            0
@@ -46,6 +50,7 @@
     root_block_no, internal_pages, leaf_pages, empty_pages, deleted_pages,
     avg_leaf_density, leaf_fragmentation
     from pgstatindex('test_pkey');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  version | tree_level | index_size | root_block_no | internal_pages | leaf_pages | empty_pages | deleted_pages | avg_leaf_density | leaf_fragmentation 
 ---------+------------+------------+---------------+----------------+------------+-------------+---------------+------------------+--------------------
        4 |          0 |          1 |             0 |              0 |          0 |           0 |             0 |              NaN |                NaN
@@ -56,6 +61,7 @@
     root_block_no, internal_pages, leaf_pages, empty_pages, deleted_pages,
     avg_leaf_density, leaf_fragmentation
     from pgstatindex('test_pkey'::text);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  version | tree_level | index_size | root_block_no | internal_pages | leaf_pages | empty_pages | deleted_pages | avg_leaf_density | leaf_fragmentation 
 ---------+------------+------------+---------------+----------------+------------+-------------+---------------+------------------+--------------------
        4 |          0 |          1 |             0 |              0 |          0 |           0 |             0 |              NaN |                NaN
@@ -66,6 +72,7 @@
     root_block_no, internal_pages, leaf_pages, empty_pages, deleted_pages,
     avg_leaf_density, leaf_fragmentation
     from pgstatindex('test_pkey'::name);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  version | tree_level | index_size | root_block_no | internal_pages | leaf_pages | empty_pages | deleted_pages | avg_leaf_density | leaf_fragmentation 
 ---------+------------+------------+---------------+----------------+------------+-------------+---------------+------------------+--------------------
        4 |          0 |          1 |             0 |              0 |          0 |           0 |             0 |              NaN |                NaN
@@ -76,6 +83,7 @@
     root_block_no, internal_pages, leaf_pages, empty_pages, deleted_pages,
     avg_leaf_density, leaf_fragmentation
     from pgstatindex('test_pkey'::regclass);
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  version | tree_level | index_size | root_block_no | internal_pages | leaf_pages | empty_pages | deleted_pages | avg_leaf_density | leaf_fragmentation 
 ---------+------------+------------+---------------+----------------+------------+-------------+---------------+------------------+--------------------
        4 |          0 |          1 |             0 |              0 |          0 |           0 |             0 |              NaN |                NaN
@@ -125,6 +133,7 @@
 
 create index test_ginidx on test using gin (b);
 select * from pgstatginindex('test_ginidx');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  version | pending_pages | pending_tuples 
 ---------+---------------+----------------
        2 |             0 |              0
@@ -132,6 +141,7 @@
 
 create index test_hashidx on test using hash (b);
 select * from pgstathashindex('test_hashidx');
+WARNING:  outfuncs/readfuncs failed to produce an equal rewritten parse tree
  version | bucket_pages | overflow_pages | bitmap_pages | unused_pages | live_items | dead_items | free_percent 
 ---------+--------------+----------------+--------------+--------------+------------+------------+--------------
        4 |            4 |              0 |            1 |            0 |          0 |          0 |          100