Re: pgstat include expansion

Hi,

On 2026-Feb-26, Andres Freund wrote:

> FWIW, regardless of what we choose here (i.e. whether and where to
> "unnecessarily" include wait_event.h), I'd be in favor of fixing all the
> fallout in our source tree, just for cleanliness' sake. It's also presumably
> the part of the patch that would be the most pain to keep updated.

Oh, that makes sense.

> I'm not sure that including in latch.h really would an improvement though -
> that's included in proc.h and libpq.h, which both are fairly widely included
> [1].

I have committed fixes for both of those, so that including an extra
file in latch.h is not as bad.

Here's one more patch. I noticed that the call actually uses
PG_WAIT_EXTENSION, which is in storage/wait_classes.h. Including that
seems a bit narrow-minded even if it's just for backwards compatibility,
so I decided to do wait_event_types.h instead. This is still a bit
better than the whole wait_event.h IMO. And also now it's IWYU: export
rather than IWYU: keep, which seems sensible.

--
Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/
"El miedo atento y previsor es la madre de la seguridad" (E. Burke)