Took a little bit of reading but the OP is founder of company [0] making a massively scalable geospatial database. This is the closest article [1] I can find which has anything close to details. It lists the following technologies:

* A low level stack that bypasses the OS for at least disk IO (supposed to provide a 2-3x throughput increase)

* "polymorphic" space-filling curves for distributed parallel indexing

* hyper-dimensional spatial sieves [2]

* Allen’s Interval Algebra to parallelise SQL statements

More discussion on some of the OP's previous hacker news posts [3].

[0] - http://spacecurve.com/

[1] - http://www.it-director.com/blogs/Bloor_IM_Blog/2014/7/how-do...

[2] - http://www.google.com/patents/US20090182837

[3] - https://news.ycombinator.com/item?id=7482151