Re: Make copyObject work in C++

On Tue, 31 Mar 2026 at 10:33, Peter Eisentraut <peter(at)eisentraut(dot)org> wrote:
> Hmm, note that C++ is also used for LLVM/JIT, and by requiring this
> additional feature set we are also imposing new requirements for those
> users. This has not been fully explored, and I hesitate to add such a
> new requirement at the last moment.

I understand the hesitation, but in practice we already impose those
requirements anyway for non-MSVC compilers because test_cplusplusext
doesn't compile without it. So any compiler that would cause problems
with the new featureset would have already complained about that
before.

> But how about this: We add the feature test that you propose and enable
> the extension based on that. See attached patch. This reduces to
> essentially a three-line patch, much simpler than all previous proposals.

If you're still worried, then this sounds like a fine middle-ground
for now. I think we should reconsider adding the automatic /std:c++20
flag for the PG20 dev cycle though.