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Recover old record version

From: Jona <jonanews(at)orioninformationservices(dot)com>
To: pgsql-admin(at)postgresql(dot)org
Subject: Recover old record version
Date: 2004-08-11 13:45:47
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
One of our developers has just managed to make an UPDATE on a table 
without any WHERE clause to restrict it.
Thus a table with a few thousand records has suddenly become virtual 

Currently no VACUUM has been run on that table (or the database for that 
matter) thus it should be possible to recover an old version of the 
records, right?
I'm basing my assumption on the documentation which states that PostGre 
has better than row-level locking and keeps an old version of each 
record until a vacuum occours.

How would I go about recovering one of the old version for all the 
records ??

Please advice!


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