Hi, We have a system which streams data containing geospatial information that represents aircraft into a PostGIS database where we also store geographic areas of interest. We would like to create, with Drools, rules which utilise the PostGIS geospatial functions as part of the Rules that we develop. What would be the most effecient and effective way of integrating the data that is in PostGIS and the geospatial functions to create facts and rules?? We don't really want to load all that data into memory and would like to utilise the geospatial functions as they are a very effecient way of evaluating the data. Regards Matt -- View this message in context: http://drools.46999.n3.nabble.com/PostGIS-Drools-Integration-tp3864374p38... Sent from the Drools: User forum mailing list archive at Nabble.com.