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* alter sequence + subqueries
@ 2005-09-16 22:36 jeff sacksteder <jsacksteder@gmail.com>
0 siblings, 2 replies; 3+ messages in thread
From: jeff sacksteder @ 2005-09-16 22:36 UTC (permalink / raw)
To: pgsql-sql
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?
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: alter sequence + subqueries
@ 2005-09-16 23:19 Alvaro Herrera <alvherre@alvh.no-ip.org>
parent: jeff sacksteder <jsacksteder@gmail.com>
1 sibling, 0 replies; 3+ messages in thread
From: Alvaro Herrera @ 2005-09-16 23:19 UTC (permalink / raw)
To: jeff sacksteder <jsacksteder@gmail.com>; +Cc: 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")
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: alter sequence + subqueries
@ 2005-09-16 23:27 Michael Fuhr <mike@fuhr.org>
parent: jeff sacksteder <jsacksteder@gmail.com>
1 sibling, 0 replies; 3+ messages in thread
From: Michael Fuhr @ 2005-09-16 23:27 UTC (permalink / raw)
To: jeff sacksteder <jsacksteder@gmail.com>; +Cc: pgsql-sql
On Fri, Sep 16, 2005 at 06:36:48PM -0400, jeff sacksteder wrote:
> ALTER SEQUENCE foo_id_seq
> RESTART WITH (SELECT max(id) FROM foo);
>
> Is this syntax correct and supported?
Not according to the documentation; for an alternative see the
example under "User Comments":
http://www.postgresql.org/docs/8.0/interactive/sql-altersequence.html
--
Michael Fuhr
^ permalink raw reply [nested|flat] 3+ messages in thread
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2005-09-16 22:36 alter sequence + subqueries jeff sacksteder <jsacksteder@gmail.com>
2005-09-16 23:19 ` Alvaro Herrera <alvherre@alvh.no-ip.org>
2005-09-16 23:27 ` Michael Fuhr <mike@fuhr.org>
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