Re: pg_database_size

On 6/4/16 3:10 AM, Venkata Balaji N wrote:
>
> On Sat, Jun 4, 2016 at 5:35 PM, sangeetha <tune2sangee(at)gmail(dot)com
> <mailto:tune2sangee(at)gmail(dot)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
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