Re: row constructors

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От Merlin Moncure
Тема Re: row constructors
Дата
Msg-id b42b73150902120935o52ed716aubc290d20b1d290c9@mail.gmail.com
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Ответ на Re: row constructors  (Rory Campbell-Lange <rory@campbell-lange.net>)
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On Thu, Feb 12, 2009 at 11:38 AM, Rory Campbell-Lange
<rory@campbell-lange.net> wrote:
> On 12/02/09, Merlin Moncure (mmoncure@gmail.com) wrote:
>> On Thu, Feb 12, 2009 at 5:03 AM, Sim Zacks <sim@compulab.co.il> wrote:
>> > Never mind. I found an old post.
>> > I just needed to do:
>> > insert into a1 select (f2).* from a2;
>> >
>> > I didn't find it the first time I searched because I was looking for row
>> > constructors, and the post I found used the term composite value.
>>
>> I'm scheming to get that fixed.  The main reason is that while the
>> insert workaround works, there is no similar workaround for 'update'.
>
> Do you mean that the currently unsupported behaviour
>
>  UPDATE accounts SET (contact_last_name, contact_first_name) =
>    (SELECT last_name, first_name FROM salesmen
>     WHERE salesmen.id = accounts.sales_id);

no, but that would also be nice. I mean,
update account set account = (123, 'a', 1)::account where account_id = 123;

merlin

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