Re: synchronized snapshots

On 23 October 2011 03:15, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Thom Brown <thom(at)linux(dot)com> writes:
>> Can I ask why it doesn't return the same snapshot ID each time?
>> Surely it can't change since you can only export the snapshot of a
>> serializable or repeatable read transaction?
>
> No, that's incorrect.  You can export from a READ COMMITTED transaction;
> indeed, you'd more or less have to, if you want the control transaction
> to be able to see what the slaves do.

My bad. I didn't read the documentation carefully enough. I can make
sense of it now.

Thanks

--
Thom Brown
Twitter: @darkixion
IRC (freenode): dark_ixion
Registered Linux user: #516935

EnterpriseDB UK: http://www.enterprisedb.com
The Enterprise PostgreSQL Company