this is a full table scan query without any current index, that's going to be in the 10-15 minute range and getting slower by the day. I suggest we add a new index on the cell_measure table in models.py, something like: `Index('cell_measure_psc_idx', '', 'radio', 'mcc', 'mnc', 'psc'),` - filtering by radio might be useful, as psc means something slightly different for umts/lte networks and shouldn't really be there for cdma networks.