I can't believe I got no comments about this, so reposting it under
a more attention-getting title ...
In https://www.postgresql.org/message-id/29037.1539021687@sss.pgh.pa.us
I wrote:
> Also, we have quite a few variant expected-files that exist only to cater
> for Windows' habit of printing three exponent digits where everybody else
> prints just two. It struck me that it would not be hard, or expensive,
> to undo that choice in snprintf.c (see attached untested patch). So we
> could considerably reduce future maintenance pain for the affected tests
> by getting rid of those files.
>
> As against that, Windows users might possibly complain that float output
> looks different than they're used to. I'm not sure how much sympathy
> I have for that position. If we reimplement float output for more speed,
> as is under discussion in nearby threads, I doubt we'd trouble to preserve
> this Windows-ism in the rewrite.
>
> Comments?
If I don't get any pushback I'm going to go do that...
regards, tom lane