Hi, 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. Greetings, Andres Freund