Re: JIT on Windows with Postgres 12.1

Hi,

On 2020-02-12 14:54:56 -0500, Tom Lane wrote:
> Andres Freund <andres(at)anarazel(dot)de> writes:
> > On 2020-02-12 09:39:19 +0100, Josef Šimánek wrote:
> >> I'm not aware of any PG 12 Windows installer with JIT/LLVM enabled.
>
> > It's not currently supported by the windows buildsystem. I don't
> > personally have the expertise to change that (I've not worked on windows
> > after ~2003). So somebody would have to step in to make that work,
> > first.
>
> First you would need either a Windows-native LLVM, or a JIT provider
> based on Microsoft's compiler. I don't know if the former exists
> (it would not be our job to create it).

Yes, LLVM would work on windows. I'd not even be surprised if one could
make it work on windows already when using a mingw based build, instead
of msvc.

> I'm not sure if the latter is possible, but for sure it'd be a large
> task if it is possible.

Yea, it'd be a lot of work to add a second provider. No iea if there's
any support for it around visual studio - but I also see no point going
there.

Greetings,

Andres Freund