Ah, I think I was wrong below. I must have been looking at different 
versions of the SRU spec without realizing it.

SRU 1.1 includes a "&sortKeys" parameter, and CQL 1.1 does not include a 
"sortBy" clause.

SRU 1.2 does NOT include a "&sortKeys" parameter, and CQL 1.2 does 
include a "sortBy" clause.

Okay.... in the SRU/ZeeRex explain document, how do you advertise which 
version of CQL you support, 1.1 or 1.2?  Or is this just implied by 
which version of SRU you support, 1.1 or 1.2?   How do you advertise 
THAT in an SRU/ZeeRex explain?

Jonathan

Jonathan Rochkind wrote:
> I think there are at least three ways to sort as part of (different 
> versions of?) SRU now! 
>
> 1) An actual separate "&sortKeys" query paramater
> 2) Included in the CQL expression in "&query", using the "sortBy" keyword.
> 3) In draft not finalized, OASIS/SRU 2.0 methods of specifying XPaths 
> for sorting.  [Thanks for including the link to the current SRU 2.0 
> draft, I didn't know that was publically available anywhere, it's not 
> really googlable].
>
>