David Fetter <david@fetter.org> wrote:
> Any chance we might be able to surface the old version for the
> case of UPDATE ... RETURNING?
Not as part of this patch.
Of course, once delta relations are available, who knows what
people might do with them. I have a hard time imagining exactly
how you would expose what you're talking about, but a column to
distinguish before and after images might work. Incremental
maintenance of materialized views will require that in the form of
a count column with -1 for deleted and +1 for inserted, so there
might be some common ground when we get to that.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
