Dear Melih, Thank you for updating the patch. Before reviewing, I found that cfbot have not accepted v8 patch [1].
IIUC src/psql/describe.c has been modified in v8, but src/test/regress/expected/subscription.out has not been changed accordingly. [1]: https://cirrus-ci.com/github/postgresql-cfbot/postgresql/commitfest/42/3840 Best Regards, Hayato Kuroda FUJITSU LIMITED