Internally grid and index spatial data for faster geoqueries

[gilbert_2_carmichael]

I have a very large geospatial point dataset (~950GB) .  When I do a spatial match on this dataset to a small polygon, the entire large geospatial point dataset has to be read into the tool so that the geospatial query can be performed.  I suspect that the geospatial query could be significantly speed up of the geospatial data could be indexed (referenced) to a grid (or multiple grids) so that the geoquery could identify the general area of overlap, then extract the data for just that area before performing the precise geoquery.  I believe Oracle used (uses) this method of storing and referencing geospatial data.