diff -U3 /tmp/cirrus-ci-build/src/test/regress/expected/vacuum_tables_and_db_statistics.out /tmp/cirrus-ci-build/build/testrun/recovery/027_stream_regress/data/results/vacuum_tables_and_db_statistics.out
--- /tmp/cirrus-ci-build/src/test/regress/expected/vacuum_tables_and_db_statistics.out	2024-08-19 01:22:04.463741000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/recovery/027_stream_regress/data/results/vacuum_tables_and_db_statistics.out	2024-08-19 01:25:40.464839000 +0000
@@ -7,7 +7,9 @@
 -- Statistic wal_fpi is not displayed in this test because its behavior is unstable.
 --
 CREATE DATABASE statistic_vacuum_database;
+WARNING:  databases created by regression test cases should have names including "regression"
 CREATE DATABASE statistic_vacuum_database1;
+WARNING:  databases created by regression test cases should have names including "regression"
 \c statistic_vacuum_database;
 -- conditio sine qua non
 SHOW track_counts;  -- must be on