Re: DELETE syntax on JOINS

Alvaro Herrera wrote:
> Bruce Momjian wrote:
>
> > > Ultimately, why not allow:
> > >
> > > DELETE h, tn
> > > FROM history AS h
> > > INNER JOIN term_node AS tn ON (h.nid = tn.nid)
> > > INNER JOIN term_data AS td ON (td.tid = tn.tid)
> > > WHERE h.uid = 2067 AND td.vid = 2
> > >
> > > IMHO this would improve compliance towards other database systems. To me
> > > this seems to be in the reasonable scope of compatibility.
> >
> > Which "other database systems"? Only MySQL? If it is MySQL-only, we
> > are unlikely to add it.
>
> The SQL standard does not support this syntax. They would have you put
> the joins in a subselect (which is often not enough because then you
> can't use outer joins).

So the problem is that our DELETE ... USING does not allow ANSI join
syntax? Can that be added?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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