--On 29. Juni 2009 08:32:29 +0900 KaiGai Kohei <kaigai@ak.jp.nec.com> wrote:
> Yes, it intends to assign an identifier string not only numeric
> large object identifier. The identifier string can be qualified
> with a certain namespace as follows.
>
> E.g)
> SELECT lo_open('my_picture01', x'40000'::int);
> SELECT lo_create('pg_temp.my_musid02');
>
> In the later case, the new largeobject will be reclaimed after
> the session closed due to the temporary namespace.
I'm not sure about the usefulness of this. While having an identifier for a
LO is nice, i believe most users store additional metadata about objects
within their own tables anyways, linking the LO there. Also i doubt there
is much need for temporary large objects (at least, i have no idea about
this....).
It might be interesting to dig into your proposal deeper in conjunction
with TOAST (you've already mentioned this TODO). Having serial access with
a nice interface into TOAST would be eliminating the need for
pg_largeobject completely (i'm not a big fan of this one-big-system-table
approach the old LO interface currently is).
--
Thanks
Bernd