Re: computational model of transactions
From: Marshall <marshall.spight_at_gmail.com>
Date: 4 Aug 2006 10:26:24 -0700
Message-ID: <1154712384.843649.326550_at_b28g2000cwb.googlegroups.com>
> AFAICT, MVCC is only safe to use in transactions that don't update
> anything, i.e. transactions that do *nothing but reads*.
Date: 4 Aug 2006 10:26:24 -0700
Message-ID: <1154712384.843649.326550_at_b28g2000cwb.googlegroups.com>
Erwin wrote:
>
> AFAICT, MVCC is only safe to use in transactions that don't update
> anything, i.e. transactions that do *nothing but reads*.
Um, if we are doing nothing but reads, we don't need any concurrency controls at all. Everything can read everything all the time safely, if there are no writes going on. So it kind of seems like above you're saying MVCC is a no-op.
Marshall Received on Fri Aug 04 2006 - 19:26:24 CEST