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
