Philip,

> Errr, are you sure about this?
>
> From talking to Ann about how indexing is achieved, I got the distinct
> impression all indexes are bidirectional ...

Your impression was incorrect FB indexes are uni-directional.

There is a discussion which was started about the implications of
changing the index structure to support bi-directional, however, this
would be for a later release (beyond v2.0 and the initial Vulcan
release).


Sean