What one needs to do is to update errmsg-utf8.txt and related tests.

ER_FOREIGN_SERVER_EXISTS

  eng "The foreign server, %s, you are trying to create already exists"

  ger "Der entfernte Server %s, den Sie versuchen zu erzeugen, existiert schon"

  spa "El servidor foráneo %s que intenta crear ya existe"

Thank you. We may as well improve it further at the same time.

ER_FOREIGN_SERVER_EXISTS

  eng "Cannot create foreign server '%s' as it already exists"

  ger "Der auswärtige Server '%s' kann nicht erstellt werden, da er bereits vorhanden ist"

  spa "No se puede crear el servidor externo '%s' porque ya existe"

  ita "Impossibile creare il server esterno '%s' poiché esiste già"

  fre "Impossible de créer le serveur étranger '%s' car il existe déjà"

  jap "外部サーバー '%s'は既に存在するため、作成できません"

  dut "Kan geen externe server '%s' maken omdat deze al bestaat"

  rus "Невозможно создать сторонний сервер '%s', так как он уже существует"

  pol "Nie można utworzyć obcego serwera '%s', ponieważ już istnieje"

  fin "Vieraata palvelinta '%s' ei voida luoda, koska se on jo olemassa "

  nor "Kan ikke opprette utenlandsk server '%s' fordi den allerede eksisterer"

  por "Não foi possível criar o servidor externo '%s' porque ele já existe"

  gre "Δεν είναι δυνατή η δημιουργία ξένου διακομιστή '%s' επειδή υπάρχει ήδη"

  swe "Det gick inte att skapa främmande server '%s' eftersom den redan finns"

  chi "无法创建外部服务器'%s'，因为它已经存在"

I added some extra languages, please check that the 3 letter language codes (other than the first three) are correct.

I pushed a pull request https://github.com/MariaDB/server/pull/2113/ (still being a draft), but have a question.

Does "fin" represent Finland above ? I left it as is in my PR, but did not find any other messages associated to "fin". So I wasn't sure if we support the language.

Please let me know if I need to modify the abbreviation.

Codes are from iso639-2 (B if applicable) (offline currently, comically due to database error).

While google recognizes it as Finish, this isn't a language in the top of the file, in sql/share/CMakeLists.txt, or debian/mariadb-server-core*.install. I thinking leaving a translation of a single error there in the txt file only is a good move.

Please re-record main.ps_missed_cmds main.create_drop_binlog main.create_drop_server tests per the CI results.

To clarify after internal discussion; we intend to add as many languages as possible.

Thanks, then I will leave fin. Let me know if I need to make any other changes to list fin here. (e.g. Don't I need to add it in the 1st line in errmsg-utf8.txt)

The pull request is now green, can you check it ? @Daniel

Not sure on any language codes from my side. Please check that the 3 letter language codes (other than the first three) are correct.

https://github.com/MariaDB/server/commit/488e56b50c40f3577dc09ae61f9970d86bcb6c64

FYI I did the 10.5, 10.6 backports after the release which is why it isn't a usual set of release date compatible fixed versions.