Re: Page layout footprint

Zdenek Kotala wrote:
> Hi Heikki,
> 
> I'm sorry for lack of explanation. It is my fault.
> 
> Heikki says (on commit fest wiki):
> ------------
> I believe I debunked this patch enough already. Apparently there's some 
> compatibility issue between 32-bit and 64-bit Sparcs, but this patch 
> didn't catch that. It doesn't seem like this provides any extra safeness 
> or better error messages. If I'm missing something, please provide more 
> details on what scenario we currently have a problem, and how this helps 
> with it.
> ------------
> 
> The original proposal 
> (http://archives.postgresql.org/message-id/489FC8E1.9090307@sun.com)
> contains two parts. First part is implementation of --footprint cmd line 
> switch which shows you  page layout structures footprint. It is useful 
> for development (mostly for in-place upgrade) and also for manual data 
> recovery when you need to know exact structures. Second part was add 
> this information also into pg_control.file, but how you correctly 
> mentioned there is not real use case to do it at this moment.
> 
> However, there is still --footprint switch which is useful and it is 
> reason why I put it on wiki for review and feedback. The switch could 
> also use in build farm for collecting footprints from build farm members.

Ok, understood. I'll take another look from that point of view.

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com