Re: turning of pg_xlog

Chander Ganesan <chander@otg-nc.com> writes:
> You should also understand that if you set checkpoint_segments to a
> small number, its still possible that PostgreSQL might use more than
> that number for a large transaction.

"Large transactions" have nothing to do with this.  You are confusing
Postgres' implementation with Oracle's.

            regards, tom lane