Re: 64 bit transaction id

Hi,

(I've not read the rest of this thread yet)

On 2019-11-04 16:07:23 +0100, Tomas Vondra wrote:
> On Mon, Nov 04, 2019 at 04:39:44PM +0300, Павел Ерёмин wrote:
> >   And yet, if I try to implement a similar mechanism, if successful, will my
> >   revision be considered?
> >    
> 
> Why wouldn't it be considered? If you submit a patch that demonstrably
> improves the behavior (in this case reduces per-tuple overhead without
> causing significant issues elsewhere), we'd be crazy not to consider it.

And "without causing significant issues elsewhere" unfortunately
includes continuing to allow pg_upgrade to work.

Greetings,

Andres Freund