Re: Autocommit, isolation level, and vacuum behavior

From: Tomasz Ostrowski <tometzky(at)batory(dot)org(dot)pl>
To: Jack Orenstein <jack(dot)orenstein(at)hds(dot)com>
Cc: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Autocommit, isolation level, and vacuum behavior
Date: 2008-09-13 08:39:54
Message-ID: 48CB7C5A.20107@batory.org.pl
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On 2008-09-12 15:52, Jack Orenstein wrote:

> Sorry, I misspoke. I have an index, but preferred doing a scan without
> the index in this case.

Why?

The only reason I can think of is that you'd like to avoid disk seeking.
But you get at most 1 row in 30 seconds, so disk latency (only several
milliseconds) can be ignored.

Regards
Tometzky
--
...although Eating Honey was a very good thing to do, there was a
moment just before you began to eat it which was better than when you
were...
Winnie the Pooh

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