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Message-ID: <3A665AE3.CE43178B@greatpacific.com.au>
Date: Thu, 18 Jan 2001 13:54:27 +1100
From: Carolyn Wong <carolyn@greatpacific.com.au>
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To: "pgsql-sql@postgresql.org" <pgsql-sql@postgresql.org>
Subject: update help
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I'd like to know what's the correct SQL statement to do the following:

update	t1 a
set	a.amount = sum(b.amount)
from	t2 b
where	a.id = b.id