On Thu, 2006-09-14 at 14:18, felix@crowfix.com wrote:
> We have a need to rename some columns, but since we can't update both
> the database and the programs instantly, we'd like to temporarily
> assign both names to the same column while the updates are in
> progress. Something like this would be super nifty :-)
>
> ALTER TABLE howdy_doody ADD NAME xyzzy TO COLUMN plugh;
>
> I am pretty certain no such SQL command exists. But is it possible to
> do something sneaky to the internal tables so that two names point to
> the same columnand everything just works? Everything meaning updates,
> inserts, etc, not further ALTER TABLE and so on.
You could create a view, make the two outside names reference the one
inside name, and create a trigger to update based on which one if given
data and throw an error if you try to update both columns at the same
time.
Sounds like a lot of work though.
