Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> writes:
> Maybe an safe minimum is cleaning symbols table without closing
> library. Then the code from lib will be accessible, but functionality
> will be disabled (for Postgres)?
If the library doesn't get added to the list in dfmgr.c, we'll never
look for symbols within it anyway. So I don't think there's any
particular cleaning to be done --- even assuming that the platform
supports removing symbols without dlclose'ing the library, which
seems rather unlikely.
regards, tom lane