That is a good question, because realistically I see N being under 10, and there are no current plans to make use of a large historical record. I could have the update process pull all columns and issue deletes as necessary such that only M (M >= N) are kept.
Thanks for the inspiration. On May 8, 2010, at 3:42 PM, Ed Anuff wrote: > Sorry, missed that. I'm not sure if there's a cleaner way than using the > approaches you've looked at, hopefully someone else has an answer. How big > is N and do you need to keep more than N around? > > On Sat, May 8, 2010 at 10:26 AM, William Ashley <wash...@gmail.com> wrote: > This would be a solution if I wanted to get the N most recently CREATED > guids, but I'm interested in the most recently SEEN guids. > >
