What are regions for? (was Re: [DAS2] DAS intro)

[Andrew Dalke]

Gregg:
> 	Okay, for now ignore the whole issue of assembly.  The need for
> something like /region doesn't depend on different levels of assembly.
> I do think handling assembly information is necessary, but that's for a
> different post.

Okay.

> 	In the current spec the ".../region" query is the only way to
> _efficiently_ discover the set of sequences that can be used for
> region/sequence-based filters in feature queries.

What's wrong with

   $VERSIONED_SOURCE/feature?type=region

That is, regions are as specific type of feature.

					Andrew
					dalke at dalkescientific.com