We want to support spatial queries.

In particular, the user should be able to define spatial fields in the indexes domain,

used to denote geographical coordinates, latitudes and the longitudes.

On the same entity more spatial fields can be defined.

We would like to support different spatial predicates to select all the geo points within a circle, a rectangle and a generic polygon of n vertices.

We would also like to provide different ways to map the spatial fields, using annotations both at field/property level and at entity level (as alternative).

The solution should work for both remote and embedded queries.