On 23 October 2011 03:15, Tom Lane <t...@sss.pgh.pa.us> wrote: > Thom Brown <t...@linux.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 -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers