On Sun, May 13, 2012 at 10:12 AM, Віталій Тимчишин <tivv00@gmail.com> wrote:
> 2012/5/11 Robert Klemme <shortcutter@googlemail.com>
>> On the contrary: what would be the /advantage/ of being able to create
>> millions of sequences? What's the use case?
>
> We are using sequences as statistics counters - they produce almost no
> performance impact and we can tolerate it's non-transactional nature. I can
> imaging someone who wants to have a sequence per user or other relation
> row.
I can almost see the point. But my natural choice in that case would
be a table with two columns. Would that actually be so much less
efficient? Of course you'd have fully transactional behavior and thus
locking.
Kind regards
robert
--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/