Re: 16-bit page checksums for 9.2

Simon Riggs <simon@2ndQuadrant.com> writes:
> After the various recent discussions on list, I present what I believe
> to be a working patch implementing 16-but checksums on all buffer
> pages.

I think locking around hint-bit-setting is likely to be unworkable from
a performance standpoint.  I also wonder whether it might not result in
deadlocks.

Also, as far as I can see this patch usurps the page version field,
which I find unacceptably short-sighted.  Do you really think this is
the last page layout change we'll ever make?

			regards, tom lane