David Fetter <da...@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

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