Thanks a lot!
I was making an elementary mistake。
At 2022-09-12 22:17:31, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>PG Bug reporting form <noreply(at)postgresql(dot)org> writes:
>> my postgresql 15beta4 installation method:
>> ./configure ...
>> make world
>> make install world
>
>I think you wanted "make install-world". As written, this just installs
>the core system, not contrib.
>
> regards, tom lane