On 2015-04-21 23:59:45 +0900, Sawada Masahiko wrote:
> The page as frozen could have the dead tuple for now, but I think to change
> to that the frozen page guarantees that page is all frozen *and* all
> visible.
It shouldn't. That'd potentially cause corruption after a wraparound. A
tuple's visibility might change due to that.
Greetings,
Andres Freund