Обсуждение: SEQUENCES

<div class="Section1"><p class="MsoNormal"><font face="Arial" size="2"><span lang="EN-US" style="font-size:
10.0pt;font-family:Arial">  Hi all,</span></font><p class="MsoNormal"><font face="Arial" size="2"><span lang="EN-US"
style="font-size:
10.0pt;font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span lang="EN-US"
style="font-size:
10.0pt;font-family:Arial">  I need to get all sequences and their respective current values! Is there any catalog table
orany other away to get this???</span></font><p class="MsoNormal"><font face="Arial" size="2"><span lang="EN-US"
style="font-size:
10.0pt;font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span lang="EN-US"
style="font-size:
10.0pt;font-family:Arial">  Thanks in advance.</span></font></div>

On Mon, Oct 02, 2006 at 01:39:38PM -0300, Rodrigo Sakai wrote:
> 
>   I need to get all sequences and their respective current values! Is there
> any catalog table or any other away to get this???

Here's a quick way to do it in a shell script, although it'd be sort
of inefficient:

for name in `psql -c "select relname from pg_class where relkind =
'S'" dbname; do psql -c "select last_value from $name" dbname; done.

A


-- 
Andrew Sullivan  | ajs@crankycanuck.ca
Unfortunately reformatting the Internet is a little more painful 
than reformatting your hard drive when it gets out of whack.    --Scott Morris

Rodrigo Sakai wrote on 02.10.2006 18:39:
>   Hi all,
> 
>  
> 
>   I need to get all sequences and their respective current values! Is there
> any catalog table or any other away to get this???
> 
>  

Quote from the manual at:
http://www.postgresql.org/docs/8.1/static/catalog-pg-class.html

"The catalog pg_class catalogs tables and most everything else that has columns 
or is otherwise similar to a table. This includes indexes (but see also 
pg_index), sequences, views, composite types"

Thomas

On Mon, Oct 02, 2006 at 13:39:38 -0300, Rodrigo Sakai <rodrigo.sakai@zanthus.com.br> wrote:
>   Hi all,
> 
>  
> 
>   I need to get all sequences and their respective current values! Is there
> any catalog table or any other away to get this???

You can get their names from pg_class (with relkind = 'S') and then iterate
over the names and look at the table underlying each table (at last_value).