[spwa4]

Yes, although Windows has had async I/O since Windows NT 3.1, their API is still not supported by Postgres.

[anarazel]

FWIW, there are prototype patches for an IOCP based io_method. We just couldn't get them into an acceptable state for PG 18. I barely survived getting in what we did...

[spwa4]

I didn't mean that as a criticism on Postgres, certainly not on Postgres developers. I really look forward to evaluating this change. I'm just reminiscing a bit about admiring Windows NT ... and being incredibly disappointed by the market.

[nu11ptr]

Yes, that was IOCP, however, Windows now also has IORing (see my comment above)