From: Craig A. James <cjames@modgraph-usa.com>
To: pgsql-performance@postgresql.org
Subject: need vacuum after insert/truncate/insert?
Date: Thu, 06 Jul 2006 18:49:44 -0700
Message-ID: <44ADBDB8.5010008@modgraph-usa.com> (raw)
In-Reply-To: <20060706200652.50294.qmail@web55911.mail.re3.yahoo.com>
References: <20060706200652.50294.qmail@web55911.mail.re3.yahoo.com>
If I insert a bunch of rows, then truncate, then insert a bunch more rows, do I need to vacuum? I've been assuming that TRUNCATE TABLE is a brute-force technique that more-or-less tosses the old table and starts fresh so that no vacuum is necessary.
Second question: Same scenario as above, but now the table has indexes. Is a reindex needed, or are the indexes they "truncated" too?
Thanks,
Craig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: cjames@modgraph-usa.com
Subject: Re: need vacuum after insert/truncate/insert?
In-Reply-To: <44ADBDB8.5010008@modgraph-usa.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox