> The problem is in execution of _PG_init() in CREATE EXTENSION time.
> It is a problem for any extension that uses plpgsql debug API, because it > is quietly activated.
> Is it necessary?
Yes, I think so. If the extension has any C functions, then when its script executes those CREATE FUNCTION commands then the underlying library will be loaded (so we can check that the library is loadable and the functions really exist). That's always happened and I do not think it is negotiable.
