Hi, On Jan 5, 2012, at 12:54 PM, Merlin Moncure wrote: > see: > http://www.postgresql.org/docs/9.1/interactive/cube.html > > and pay special attention to gist indexing portions. cube only > indexes box operations, but you can cull the sphere using 3d distance > formula for points between inner and outer bounding cube. Thanks for the pointer, Merlin. I had been looking at that, and the bounding boxes idea is good. I'm a little concerned about the very large number of trigonometric calculations this will lead to. For a single, occasional search this would not be an issue, but I'm going to be performing this search thousands of times. Is anyone aware of a datatype or third-party implementation that will index in three dimensions radially, or what it would take to accomplish this? Cheers, Demitri -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
