Re: pg_database_size - Mailing list pgsql-performance

From Jim Nasby
Subject Re: pg_database_size
Date
Msg-id 29839361-b9fc-b6d1-4847-6af44f6c24ff@BlueTreble.com
Whole thread Raw
In response to Re: pg_database_size  (Venkata Balaji N <nag1010@gmail.com>)
List pgsql-performance
On 6/4/16 3:10 AM, Venkata Balaji N wrote:
>
> On Sat, Jun 4, 2016 at 5:35 PM, sangeetha <tune2sangee@gmail.com
> <mailto:tune2sangee@gmail.com>> wrote:
>
>     SELECT pg_database_size('DB1')  takes 60ms for 7948 kB size DB. Is
>     there any
>     way to reduce the time taken or any other ways to find data base size?
>
>
> What is the version of PostgreSQL you are using ?
>
> You can execute the command "\l+" which will list all the databases and
> their sizes.
>
> Or you can execute "\l+ <database-name>".

Depending on your needs, you could also take the sum of
pg_class.relpages and multiply that by BLKSZ.
--
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com
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