Tom Lane wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>
>> On Mon, Aug 24, 2009 at 9:31 PM, Josh Berkus<josh@agliodbs.com> wrote:
>>
>>> What I don't get is why this is such a usability issue. Subqueries in
>>> DELETE FROM work perfectly well, and provide more flexibility than most
>>> users know what to do with.
>>>
>
>
>> It's both a usability issue and a performance issue.
>>
>
> On the usability front: if we were to take the position Josh advocates,
> we should never have added FROM/USING to UPDATE/DELETE at all
FWIW, I use update ... from a lot - it make many update queries easier
and less error prone to write - but I rarely find I need delete ... using.
> ... but
> since we did, I think we should try to make it as flexible as the
> corresponding feature in other DBMSes.
>
>
>
+1
cheers
andrew
