Neil Conway <neilc@samurai.com> writes:
> On a related note, UPDATE uses the FROM keyword to denote the list of
> relations to join with, whereas DELETE uses USING. Should we make USING
> an alias for FROM in UPDATE and if so, should we deprecate FROM? This
> would be more consistent, which I suppose is a good thing.
Of course, the entire reason this didn't happen years ago is that we
couldn't agree on what keyword to use... you sure you want to reopen
that discussion?
I don't think changing UPDATE is a good idea. It's consistent with
SELECT and people are used to it.
You could argue that something like
DELETE FROM target [ { USING | FROM } othertables ] ...
is the best compromise. Those who like consistency can write FROM,
those who don't like "FROM a FROM b" can write something else.
regards, tom lane