Re: Add llvm version into the version string

> On Sat, Sep 21, 2024 at 05:25:30PM GMT, Tom Lane wrote:
>
> Is there a way to get the llvm library's version at run time?  If so
> we could consider building a new function to return that.

Yes, there is a C api LLVMGetVersion to get the major, minor and patch
numbers. The jit provider could be extended to return this information.

About a new function, I think that the llvm runtime version has to be
shown in some form by pgsql_version. The idea is to skip an emails
exchange like "here is the bug report" -> "can you attach the llvm
version?". If it's going to be a new separate function, I guess it won't
make much difference to ask either to call the new function or the
llvm-config, right?