Re: Add last commit LSN to pg_last_committed_xact()

On 2022-01-28 16:36:32 -0800, Andres Freund wrote:
> On 2022-01-28 18:43:57 -0500, James Coleman wrote:
> > Alternatively I see pg_attribute_aligned, but that's not defined
> > (AFAICT) on clang, for example, so I'm not sure that'd be acceptable?
> 
> clang should have it (it defines __GNUC__). The problem would be msvc, I
> think. Not sure if there's a way to get to a common way of defining it between
> gcc-like compilers and msvc (the rest is niche enough that we don't need to
> care about the efficiency I think).

Seems like it's doable:

https://godbolt.org/z/3c5573bTW