I found the following script useful; for calculating database size:-
-- Query returns size of a database calculated from the no. 8k pages allocated to tables SELECT sum( relpages*8/1024 ) as MB FROM pg_class WHERE -- relname != '' -- relname = 'tablename' relnamespace = '2200' On 4/17/07, Chuck Amadi <[EMAIL PROTECTED]> wrote:
I have been given a task to try a proof of concept of migrating are active databases from PostgreSQL 8.0.1 to 8.2.3 I will install and configPostgreSQL on my local w/s and replicate the database users etc etc. I have had a look inside /var/lib/pgsql/data/base and there are numerous files (db's) which I believe is where I can check data base size. 1 108012 114465 122407 1261267 1261963 17229 17233 17234 17235 174066 19247 205009 21272 2793694 2794334 333245 333375 I am aware that Postgresql creates directories to keep each database in. These directories aren't names,they are kept as the *'OID's *of each database (oid's are*"object identifiers"*). Previously I just run pg_dump and thus run ls -lh on the db dump. Anyway of checking a size of a given database I have tried the sql using select pg_database_size ('dbaname'); but no joy. Cheers Chuck -- Chuck Amadi ROK Corporation Limited Ty ROK, Dyffryn Business Park, Llantwit Major Road, Llandow, Vale Of Glamorgan. CF71 7PY Tel: 01446 795 839 Fax: 01446 794 994 International Tel: +44 1446 795 839 email: [EMAIL PROTECTED] This email is confidential to the addressee only. If you do not believe that you are the intended recipient, do not pass it on or copy it in any way. Please delete it immediately. ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match