Bug#948735: apt doesn't completely remove "postgresql-11" dependencies

[Алексей Шилин <rootlexx@mail.ru>]

В Вс, 12/01/2020 в 22:06 +0000, Mario E. Weisz пишет:
> $ apt rdepends postgresql-client-11 --installed
> 
> returns nothing (empty result).
> 
> The install/remove/autoremove sequence was executed right after a
> fresh installation.
> 

postgresql-common installs the following configuration snippet to
/etc/apt/apt.conf.d/01autoremove-postgresql:

   // File installed by postgresql-common. Currently not updated
   automatically,
   // but might be in future releases.
   //
   // We mark all PostgreSQL packages as NeverAutoRemove because
   otherwise apt
   // would remove the old postgresql-NN package when the "postgresql"
   meta
   // package changes its dependencies to a new version, rendering the
   old
   // database cluster inaccessible. As access to the cluster might
   depend on
   // other modules (like datatypes), we use a pretty wide pattern
   here. We might
   // tighten this to match only actually used PostgreSQL versions in
   the future.

   APT
   {
     NeverAutoRemove
     {
       "^postgresql-";
     };
   };

I guess, this answers your question.

It's obvious that APT is not in fault here and behaves exactly as it's
supposed to.