Search Postgresql Archives

Re: currval and DISCARD ALL

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 04/16/2013 08:07 AM, Nigel Heron wrote:

On 04/15/2013 05:57 PM, Adrian Klaver wrote:
On 04/15/2013 02:42 PM, Nigel Heron wrote:
Hi,
is there a way to clear the session state of sequence values fetched by
currval(regclass)? "DISCARD ALL" doesn't seem to do it.

<snip>
Might want to take a look at:

http://www.depesz.com/2012/12/02/what-is-the-point-of-bouncing/

for some hints on dealing with sequences and pgBouncer.


thanks, I read it (his blogs are always interesting!). I'm not disputing
that calling currval() at the wrong time is a bad idea.
I'm just wondering why DISCARD ALL clears everything but this?

Well per the docs:

http://www.postgresql.org/docs/9.2/interactive/sql-discard.html

DISCARD ALL

is equivalent to:

SET SESSION AUTHORIZATION DEFAULT;
RESET ALL;
DEALLOCATE ALL;
CLOSE ALL;
UNLISTEN *;
SELECT pg_advisory_unlock_all();
DISCARD PLANS;
DISCARD TEMP;

AFAIK, none of the above affect sequences.


-nigel.



--
Adrian Klaver
adrian.klaver@xxxxxxxxx


--
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux