Re: alter sequence + subqueries

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От Alvaro Herrera
Тема Re: alter sequence + subqueries
Дата
Msg-id 20050916231908.GE9069@surnet.cl
обсуждение исходный текст
Ответ на alter sequence + subqueries  (jeff sacksteder <jsacksteder@gmail.com>)
Список pgsql-sql
On Fri, Sep 16, 2005 at 06:36:48PM -0400, jeff sacksteder wrote:
> The postgres-specific sql extension 'ALTER SEQUENCE' does not appear to 
> support subqueries.
> 
> I have inserted some data into a table, including values in the primary key. 
> I want to reset the associated sequence so that any further records to be 
> inserted into that table resume numbering correctly. The statement I 
> attempted was:
> 
> ALTER SEQUENCE foo_id_seq 
> RESTART WITH (SELECT max(id) FROM foo);
> 
> Is this syntax correct and supported?

No, but you could call the setval() function instead ...

-- 
Alvaro Herrera -- Valdivia, Chile         Architect, www.EnterpriseDB.com
Officer Krupke, what are we to do?
Gee, officer Krupke, Krup you! (West Side Story, "Gee, Officer Krupke")


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