On Thu, 2004-11-04 at 15:47, Chris Browne wrote:
> Another thing that would be valuable would be to have some way to say:
>
> "Read this data; don't bother throwing other data out of the cache
> to stuff this in."
>
> Something like a "read_uncached()" call...
>
> That would mean that a seq scan or a vacuum wouldn't force useful data
> out of cache.
ARC does almost exactly those two things in 8.0.
Seq scans do get put in cache, but in a way that means they don't spoil
the main bulk of the cache.
--
Best Regards, Simon Riggs
