On Sun, Apr 11, 2010 at 3:30 AM, Mark Robson <mar...@gmail.com> wrote: > Can we not implement counts by just storing all the deltas in a row, and > then summing them all up to acheive a count. > > If a row ends up with too many deltas, a reader could just summarise the > deltas occasionally into a single value (in a way which avoids race > conditions, of course).
How do you avoid the race condition? Don't you need a lock? Paul Prescod Ayogo, Inc.