Re: AW: [HACKERS] Getting OID in psql of recent insert

> Zeugswetter Andreas SEV <ZeugswetterA(at)wien(dot)spardat(dot)at> writes:
> >> Yes, I use 'em the same way. I think an OID is kind of like a pointer
> >> in a C program: good for fast, unique access to an object within the
> >> context of the execution of a particular application (and maybe not
> >> even that long). You don't write pointers into files to be used again
> >> by other programs, though, and in the same way an OID isn't a good
> >> candidate for a long-lasting reference from one table to another.
>
> > I thought this special case is where the new xid access method would come
> > in.
>
> Good point, but (AFAIK) you could only use it for tables that you were
> sure no other client was updating in parallel. Otherwise you might be
> updating a just-obsoleted tuple. Or is there a solution for that?
>
> > Is someone still working on the xid access ?
>
> I think we have the ability to refer to CTID in WHERE now, but not yet an
> access method that actually makes it fast...

Hiroshi supplied a patch to allow it in the executor, and I applied it.

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