[chandler-users] collection size after upgrade

[Jeffrey Harris]

Hi Rick,

> At Sheila's request a couple of days ago, I made special note of the 
> number of items in my collections: >5000

Just curious, what method did you use to find out how many items you've got?

> What happened? What does Export Collections and Settings... followed by 
> Reload Collections and Settings... do, that purging does not do? Would 
> you predict that performance would be improved by starting with a fresh 
> repository and Reloading...?

Yes, actually, that is expected behavior, but I can see why it would be 
surprising!

Chandler's concept of "item" varies confusingly, I'm afraid.  One item, 
from the repository's perspective, could be:

- UI details that get persisted
- A single occurrence of a recurring event that gets created lazily
- A single location

Ideally, end-users would only really think of items as "this 
note/event/task", but we haven't been careful enough about this.

Finally, your repository persists many different versions of these 
items, so if you're a power user you can look back at the past state of 
items.  This information gets lost when you upgrade, which makes your 
repository snappier.

Sincerely,
Jeffrey