On 2015-07-23 11:06:25 -0400, Robert Haas wrote:
> I don't know what to do about the fact that it loses to the VM-bit
> based approach, but I think it's a bad bet that we will never care
> about setting visibility map bits anyplace other than VACUUM.
+1
A background process that tries to hint all pages shortly before they're
written out would be truly awesome. And would very likely set hint
bits...
Andres