From: Nic Chidu <nic@chidu.net>
To: pgsql-admin@postgresql.org
Subject: full vacuum of a very large table
Date: Tue, 29 Mar 2011 11:56:05 -0400
Message-ID: <1301414165.2351.1435136873@webmail.messagingengine.com> (raw)
Got a situation where a 130 mil rows (137GB) table needs to be brought down in size to 10 mil records (most recent)
with the least amount of downtime.
Doing a full vacuum would be faster on:
- 120 mil rows deleted and 10 mil active (delete most of them then full vacuum)
- 10 mil deleted and 120 mil active. (delete small batches and full vacuum after each delete).
Any other suggestions?
Thanks,
Nic
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To: pgsql-admin@postgresql.org
Cc: nic@chidu.net
Subject: Re: full vacuum of a very large table
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