Thread: Calculation of db size

Calculation of db size

From
Horst Düster
Date:
Then I have a subsequent question.

Does the query

SELECT g_database_size('dbname');

take into account the storage space of the table pg_shdepend or not?

Regards
Horst

-- 
Dr. Horst Düster
Managing Director
Sourcepole AG - Linux & Open Source Solutions 
Weberstrasse 5, 8004 Zürich, Switzerland
Tel: +41 (0)44 440 77 11
Direkt: +41 (0)44 515 67 70
horst.duester@sourcepole.ch  http://www.sourcepole.ch

qgiscloud.com - Karten einfach vom Desktop ins Netz





Re: Calculation of db size

From
Andrew Gierth
Date:
>>>>> "Horst" == Horst Düster <horst.duester@sourcepole.ch> writes:

 Horst> Then I have a subsequent question.

 Horst> Does the query

 Horst> SELECT g_database_size('dbname');

 Horst> take into account the storage space of the table pg_shdepend or
 Horst> not?

It does not. Nor does it include the other global tables, such as
pg_database, pg_authid, etc. To get the list of global tables and their
indexes, use:

select relname from pg_class where relisshared;

The size of the global tables and indexes, which don't count towards the
size of any individual database, can be obtained with
pg_tablespace_size('pg_global'). (All global tables must be in the
pg_global tablespace, and no other tables are allowed there.)

--
Andrew (irc:RhodiumToad)


Re: Calculation of db size

From
Shreeyansh Dba
Date:
Yes, pg_database_size() includes all disk space used by the database i.e. catalog tables or user data.

Thanks & Regards,
Shreeyansh DBA Team
www.shreeyansh.com


On Mon, Jan 21, 2019 at 7:39 PM Horst Düster <horst.duester@sourcepole.ch> wrote:
Then I have a subsequent question.

Does the query

SELECT g_database_size('dbname');

take into account the storage space of the table pg_shdepend or not?

Regards
Horst

--
Dr. Horst Düster
Managing Director
Sourcepole AG - Linux & Open Source Solutions
Weberstrasse 5, 8004 Zürich, Switzerland
Tel: +41 (0)44 440 77 11
Direkt: +41 (0)44 515 67 70
horst.duester@sourcepole.ch  http://www.sourcepole.ch

qgiscloud.com - Karten einfach vom Desktop ins Netz