On Fri, May 20, 2011 at 10:16 PM, Alexander Burger <>wrote:

> Hi all,
> today I added a useful new prefix class to the database stuff:
>   +UT
> This is a prefix class for '+Aux', extending it so that it combines the
> multiple attributes into a single multi-dimensional key. This allows
> access to ranges of values (as opposed to a plain +Aux, which gives you
> access to explicit combinations of multiple keys, but not to an
> rectangle, box, etc. as a confined region).
> Typical examples would be geographic coordinates (2 dimensions) or GPS
> data (3 dimensions).
> BTW, I felt that I should finally try Twitter! So I created an account a
> few days ago, and just now I twittered (tweeted, twote?) the good news
> about the UB-Tree into the world :D
> @Henrik: You are the first (and only one so far) I'm following ;-)
> Anybody else?
> Cheers,
> - Alex
> --

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