On 16 October 2012 03:03, Christopher Browne <cbbro...@gmail.com> wrote:
> There's a necessary trade-off; you can either have it globally > *strongly* ordered, and, if so, you'll have to pay a hefty > coordination price, or you can have the cheaper answer of a weakly > ordered sequence. The latter leaves me feeling rather "meh." Oracle allows you to define whether you want ORDER or not for a sequence when used in clustered mode. Requesting a sequence to be strongly ordered across a generic distributed system is very much like asking performance=none and high_availability=off, which is why I didn't suggest it. So you're right about the "hefty coordination price" but our conclusions differ because of our understanding of that price. I don't think it makes sense to spend the time implementing that option. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
