Обсуждение: Show schema size with \dn+

Is there any interest in expanding \dn+ to show schema size, similar  
to table sizes using \dt+ in 8.4? We use separate schemas for each  
user, so this would allow us to quickly look up the sizes of each  
user's data.

I have little experience with C and none with the PostgreSQL code base  
-- where should I look to have a go at this?

-- a.

Le mercredi 28 octobre 2009 à 15:11:31, Anders Steinlein a écrit :
> Is there any interest in expanding \dn+ to show schema size, similar
> to table sizes using \dt+ in 8.4? We use separate schemas for each
> user, so this would allow us to quickly look up the sizes of each
> user's data.
>
> I have little experience with C and none with the PostgreSQL code base
> -- where should I look to have a go at this?
>

I would say source file src/bin/psql/describe.c, function listSchemas.


--
Guillaume.http://www.postgresqlfr.orghttp://dalibo.com

On Wed, 2009-10-28 at 15:11 +0100, Anders Steinlein wrote:
> Is there any interest in expanding \dn+ to show schema size, similar  
> to table sizes using \dt+ in 8.4? We use separate schemas for each  
> user, so this would allow us to quickly look up the sizes of each  
> user's data.

A schema doesn't really have a size, because a schema is not a storage
subdivision.

Are you sure ?

I believe that we can pass more information structuralized facilitating the life of admins as we

This item of TODO can be constructed with these easinesses[1]

- Make psql's \d commands more consistent in its handling of schemas

[1] http://archives.postgresql.org/pgsql-hackers/2004-11/msg00014.php



--
Marcelo Costa
www.marcelocosta.net
-------------------------------------------------
“You can't always get what want”,

Doctor House in apology to Mike Jagger

* Peter Eisentraut (peter_e@gmx.net) wrote:
> On Wed, 2009-10-28 at 15:11 +0100, Anders Steinlein wrote:
> > Is there any interest in expanding \dn+ to show schema size, similar
> > to table sizes using \dt+ in 8.4? We use separate schemas for each
> > user, so this would allow us to quickly look up the sizes of each
> > user's data.
>
> A schema doesn't really have a size, because a schema is not a storage
> subdivision.

Erm, it's a namespace inside of which objects exist.  Sure, the
individual tables might be on different tablespaces, but the schema's
size is a direct aggregation of the objects which it contains.

The argument that it doesn't have a size is a bit like arguing that 'du'
should report the directory's size rather than the combined size of
everything in it.

I look forward to someone adding this, it'd be nice to have.
Thanks,
    Stephen