Re: safety of vacuum verbose analyze on active tables

From: Ed Loehr <eloehr(at)austin(dot)rr(dot)com>
To: Andrew Snow <als(at)fl(dot)net(dot)au>
Cc: "Pgsql-General(at)Postgresql(dot) Org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: safety of vacuum verbose analyze on active tables
Date: 2000-04-17 15:31:50
Message-ID: 38FB2E66.3CC2C1A5@austin.rr.com
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Andrew Snow wrote:
>
> > what is the relative safety of doing a vacuum verbose analyze on a 24Gb
> > table while there are selects and updates/inserts happening on it?
>
> As far as I know, the table is locked completely during a Vacuum. Any
> transactions attempting to do inserts/updates will be paused safely. So go
> ahead and schedule your vacuums for whenever you need to.

There have been reports of problems (corruption, etc.) when trying to do
this. See the archive for a discussion along these lines a few months ago.

Regards,
Ed Loehr

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