Re: SSI work for 9.1

On 14.06.2011 17:57, Kevin Grittner wrote:
> Heikki Linnakangas<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
>
>> I did some further changes, refactoring SkipSerialization so that
>> it's hopefully more readable, and added a comment about the
>> side-effects. See attached. Let me know if I'm missing something.
>
> I do think the changes improve readability. I don't see anything
> missing, but there's something we can drop. Now that you've split
> the read and write tests, this part can be dropped from the
> SerializationNeededForWrite function:
>
> +
> + /* Check if we have just become "RO-safe". */
> + if (SxactIsROSafe(MySerializableXact))
> + {
> + ReleasePredicateLocks(false);
> + return false;
> + }
>
> If it's doing a write, it can't be a read-only transaction....

Ah, good point. Committed with that removed.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com