you can try for your reference
http://www.postgresql.org/docs/8.2/interactive/functions-admin.html#FUNCTIONS-ADMIN-DBSIZE
in earlier versions use the functions in contrib/dbsize.
- Vishal
>From: "Nathaniel Banks Jr." <nbanks@impulsemg.com>
>To: <pgsql-admin@postgresql.org>
>Subject: [ADMIN] Determine/Calculate table size
>Date: Wed, 27 Jun 2007 12:32:08 -0400
>
>Hello Gurus,
>
>I'm fairly new to Postgres and I was wondering what command/sql query
>will give me a list of each table in a schema with it's size? I've
>searched around and I haven't been able to find...I'm on postgres 7.3 by
>the way
>
>
>
>
>
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