diff -U3 /tmp/cirrus-ci-build/src/test/regress/expected/jsonb_jsonpath.out /tmp/cirrus-ci-build/build-32/testrun/pg_upgrade/002_pg_upgrade/data/results/jsonb_jsonpath.out
--- /tmp/cirrus-ci-build/src/test/regress/expected/jsonb_jsonpath.out	2025-05-16 18:16:44.593089018 +0000
+++ /tmp/cirrus-ci-build/build-32/testrun/pg_upgrade/002_pg_upgrade/data/results/jsonb_jsonpath.out	2025-05-16 18:25:41.977082671 +0000
@@ -3082,7 +3082,7 @@
 select jsonb_path_query('"abc~@~def~@~ghi"', '$.split_part("~@~", 2)');
  jsonb_path_query 
 ------------------
- "def"
+ ""
 (1 row)
 
 -- Test string methods play nicely together