Обсуждение: - tablespace and directory

Hi there,

when creating a tablespace pointing to an existing directory, PG create
a subderictory with this pattern :

PG_???_!!!!!!!!!

where ??? is the version (by instance 9.1)

but I don't know what is !!!!!!!!!, actually 201105231

I can imagine that is a build version, but how can I obtain this number
by a SQL Query ?

Thanks a lot

--
Frédéric BROUARD - expert SGBDR et SQL - MVP SQL Server - 06 11 86 40 66
Le site sur le langage SQL et les SGBDR  :  http://sqlpro.developpez.com
Enseignant Arts & Métiers PACA, ISEN Toulon et CESI/EXIA Aix en Provence
Audit, conseil, expertise, formation, modélisation, tuning, optimisation
*********************** http://www.sqlspot.com *************************

Thanks !

Le 18/04/2012 15:35, Raghavendra a écrit :
>
>
> On Wed, Apr 18, 2012 at 6:22 PM, F. BROUARD / SQLpro
> <sqlpro@club-internet.fr <mailto:sqlpro@club-internet.fr>> wrote:
>
>     Hi there,
>
>     when creating a tablespace pointing to an existing directory, PG
>     create a subderictory with this pattern :
>
>     PG_???_!!!!!!!!!
>
>     where ??? is the version (by instance 9.1)
>
>     but I don't know what is !!!!!!!!!, actually 201105231
>
>     I can imagine that is a build version, but how can I obtain this
>     number by a SQL Query ?
>
>
> Thats a system catalog version number. You  can retrieve with pg_controldata
>
> Eg:
>
> -bash-4.1$ ./pg_controldata
> pg_control version number:            903
> Catalog version number:               201105231
> Database system identifier:           5719586032196955957
> Database cluster state:               in production
>
>
> ---
> Regards,
> Raghavendra
> EnterpriseDB Corporation
> Blog: http://raghavt.blogspot.com/
>


--
Frédéric BROUARD - expert SGBDR et SQL - MVP SQL Server - 06 11 86 40 66
Le site sur le langage SQL et les SGBDR  :  http://sqlpro.developpez.com
Enseignant Arts & Métiers PACA, ISEN Toulon et CESI/EXIA Aix en Provence
Audit, conseil, expertise, formation, modélisation, tuning, optimisation
*********************** http://www.sqlspot.com *************************

Hi,

is there anyway to have the value of Catalog version number in a query ?
I do not see it in pg_settings...

A +

Le 18/04/2012 15:35, Raghavendra a écrit :
>
>
> On Wed, Apr 18, 2012 at 6:22 PM, F. BROUARD / SQLpro
> <sqlpro@club-internet.fr <mailto:sqlpro@club-internet.fr>> wrote:
>
>     Hi there,
>
>     when creating a tablespace pointing to an existing directory, PG
>     create a subderictory with this pattern :
>
>     PG_???_!!!!!!!!!
>
>     where ??? is the version (by instance 9.1)
>
>     but I don't know what is !!!!!!!!!, actually 201105231
>
>     I can imagine that is a build version, but how can I obtain this
>     number by a SQL Query ?
>
>
> Thats a system catalog version number. You  can retrieve with pg_controldata
>
> Eg:
>
> -bash-4.1$ ./pg_controldata
> pg_control version number:            903
> Catalog version number:               201105231
> Database system identifier:           5719586032196955957
> Database cluster state:               in production
>
>
> ---
> Regards,
> Raghavendra
> EnterpriseDB Corporation
> Blog: http://raghavt.blogspot.com/
>


--
Frédéric BROUARD - expert SGBDR et SQL - MVP SQL Server - 06 11 86 40 66
Le site sur le langage SQL et les SGBDR  :  http://sqlpro.developpez.com
Enseignant Arts & Métiers PACA, ISEN Toulon et CESI/EXIA Aix en Provence
Audit, conseil, expertise, formation, modélisation, tuning, optimisation
*********************** http://www.sqlspot.com *************************