Please enhance SDF to support ordering through the standard Select interface.

[jbirch]

Currently, users of the SDF provider have to know about its non-standard alternate select interface to take advantage of results ordering.

I believe that this runs counter to the whole idea of an abstraction layer like FDO; clients should not have to implement provider-specific workarounds to get at common functionality.

Ordering functionality is really important to me, and I have had to work around it on the client side (had to populate array in PHP and sort rather than just streaming the features - high memory usage) several times already.