Re: command to check the database size ? - Mailing list pgsql-admin

Thanks Plugge, it works fine whereby it gives me the sizes for each table. But is there another command that will sum up and then give me one size for the whole database?

Please advise if it’s possible.

Execute this against the database that you want to check the size of:

SELECT schemaname, tablename,

pg_size_pretty(size) AS size_pretty,

pg_size_pretty(total_size) AS total_size_pretty

FROM (SELECT *,

pg_relation_size(schemaname||'.'||tablename) AS size,

pg_total_relation_size(schemaname||'.'||tablename) AS total_size

FROM pg_tables) AS TABLES

WHERE schemaname='public'

ORDER BY total_size DESC;

This will get it by table ….

Hi

Please help, I am new to postgres administration. I just need a command to check the size of the database.

I tried searching but no luck. The server is running on Postgres 7.3.4 and O/S Linux Centos 5. The data sits on /data/postgres7.3.4/data directory. There is no directory like /usr/src/postgresql-7.3.4/contrib/dbsize

But the backup server which is also running postgres 7.3.4 but on Redhat 9 does have /usr/src/postgresql-7.3.4/contrib/dbsize directory which has the following files but I don’t what to from from:

[root@c9903 dbsize]# pwd

/usr/src/postgresql-7.3.4/contrib/dbsize

[root@c9903 dbsize]# ls -ltrh

total 16K

-rw-r--r--    1 70       wheel         201 Feb 23  2002 Makefile

-rw-r--r--    1 70       wheel         253 Apr  2  2002 dbsize.sql.in

-rw-r--r--    1 70       wheel         554 Jun 23  2002 README.dbsize

-rw-r--r--    1 70       wheel        2.6K Sep  4  2002 dbsize.c

[root@c9903 dbsize]#

I also could not find functions like pg_database_size(), pg_size_pretty()

,etc in this old version of postgres7.3.4.

In summary I can’t find the command to find the database size from the main server and from the backup server.

Please help

Thanks

Khangelani

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