Re: [PATCH] reloptions - RELOPT_KIND_ALL

Zdenek Kotala wrote:
> Alvaro Herrera píše v pá 23. 01. 2009 v 11:04 -0300:
>> Zdenek Kotala wrote:
>>> I attached patch which add capability to have single record for all
>>> realation kind in the reloption list. It is usefull in situation when
>>> all parameters are same for all relation kinds.
>> Do you have an example use case for this?
> 
> I use it in my space reservation patch. I going to send it soon. The
> default value is zero in all relkind and max value as well. It seems to
> me waste a space to copy and paste same lines several times.

Aside from the other issues mentioned, ISTM the amount of space 
reservation wanted depends on the exact changes across releases that 
make that space reservation necessary in the first place.  And depending 
on what those changes are, the space reservation requirements could be 
wildly different for each access and storage method.