From: | Daniel Rubio <drubior(at)tinet(dot)org> |
---|---|
To: | pgsql-admin(at)postgresql(dot)org |
Subject: | Re: schema sizes |
Date: | 2005-03-03 12:49:54 |
Message-ID: | 422707F2.9090305@tinet.org |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-admin |
Thanks, it works fine!!
Morus Walter wrote:
> Daniel Rubio writes:
>
>>Hi all!
>>
>>We want to obtain the size of the diferent schemas of some databases.
>>We've installed dbsize and it works fine, but it returns the size of all
>>the database.
>>Exists some method to determine the size of a concrete schema?
>>
>
> I use
> SELECT nspname,
> sum(relpages * cast( 8192 AS bigint )) as "table size",
> sum( ( select sum(relpages)
> from pg_class i, pg_index idx
> where i.oid = idx.indexrelid
> and t.oid=idx.indrelid ) ) * cast( 8192 AS bigint ) as "index size",
> sum ( relpages * cast( 8192 AS bigint ) + ( select sum(relpages)
> from pg_class i, pg_index idx
> where i.oid = idx.indexrelid
> and t.oid=idx.indrelid ) * cast( 8192 AS bigint ) ) as "size"
> FROM pg_class t, pg_namespace
> WHERE relnamespace = pg_namespace.oid
> and pg_namespace.nspname not like 'pg_%'
> and pg_namespace.nspname != 'information_schema'
> and relkind = 'r' group by nspname;
>
> to sum over all tables/indices of a schema.
> Note that the input for the sum is relpages in pg_class and this value
> is only updated by VACUUM, ANALYZE und CREATE INDEX.
> So you should analyze all tables before you execute the statement.
>
>
--
********************************************************
Daniel Rubio Rodríguez
OASI (Organisme Autònom Per la Societat de la Informació)
c/ Assalt, 12
43003 - Tarragona
Tef.: 977.244.007 - Fax: 977.224.517
e-mail: drubio a oasi.org
********************************************************
From | Date | Subject | |
---|---|---|---|
Next Message | thomas.revell | 2005-03-03 12:50:06 | Re: How about putting distinct DB-schemas in extra DMBS |
Previous Message | KÖPFERL Robert | 2005-03-03 12:37:45 | How about putting distinct DB-schemas in extra DMBS instances |