PaceEntryQuery

[Ezra Cooper <ezra@xxxxxxxxxxxx>]

A couple of questions and suggestions on PaceEntryQuery:

Greg, why does it say that range specifiers apply only to Atom Entry 
collections? I think we need SOME subset-fetching mechanism for other 
Atom collections, don't we?

On allowing multiple ranges in one request: Is it necessary? Isn't it 
just as easy to make multiple requests? Can we simplify the protocol by 
dropping that?

Also, I would prefer to define ranges according to the value of the 
field, rather than by ordinal ranges. Consider what happens if Alice 
asks for items 0-9, then Bob inserts a new item 0, then Alice asks for 
items 10-19. Alice will fetch an item twice. If after the first 
operation, Alice sees that the oldest item in that set was dated 
2004-09-03T12:37:42Z, she can then make a request asking for the 10 
items immediately prior to that date. If Bob adds a new item, its date 
will be outside that range, and won't affect the results.

I'll devise a syntax for a range over date values. Would it be 
reasonable to drop support for ordinal ranges?

Ezra