[tetris11]

is A,B,C,D in the database the same as D,C,B,A? Or does order infer orientation?

[gmiller123456]

It uses a hash which is scale and orientation independent. A lot of the details are described in this paper:

https://arxiv.org/abs/0910.2233

[moloch-hai]

Order cannot infer anything. Only people, animals, and some programs can infer. Inanimate facts can at most imply.