Re: Postgres 8.3 HOT and non-persistent xids

On Thu, Dec 20, 2007 at 12:55:02AM -0500, Tom Lane wrote:

> "Mike C" <smith(dot)not(dot)western(at)gmail(dot)com> writes:
> > And for non-persistent transaction ids, the documentation says that
> > this is for read-only transactions. What defines a read-only
> > transaction for this purpose?
>
> A transaction that has not done anything that requires it to sign an
> update with its transaction ID.

In this context, when I set a connection to READ ONLY do any
transactions run on the connection ever bother to do any of
the transactional-writes housekeeping (such as txid
signing) ?

Karsten
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