Re: pg_system_identifier()

Vik Fearing <vik.fearing@dalibo.com> writes:
>>> The attached patch implements a pg_system_identifier() function that
>>> exposes it.
>
> It's information about the server that's only accessible through
> pg_controldata.  I don't know if that's justification enough, which is
> why I didn't add it to the commitfest yet.

We already have two extensions to expose pg_controldata output at the
SQL level, and I think we should just include the facility in core.
 https://github.com/jconway/pg_controldata http://labs.omniti.com/labs/pgtreats/browser/trunk/contrib/control

Regards,
-- 
Dimitri Fontaine
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support