"David G. Johnston" <david.g.johnston@xxxxxxxxx> writes:
> Also, I recall discussion that select statements will touch the visibility
> map (hence causing write I/O even in a read-only query) but [1] indicates
> that only vacuum will set them ddl will clear them.
Hm, I don't recall that, but I've not been involved in the last few rounds
of hacking on that mechanism.
I was confusing hint bits with the visibility map, sorry for the noise and/or confusion.
David J.
