Database : berlintest Restore : No Operator : cspatialjoin Number : 1 Signature: stream(tblock) x stream(tblock) x symbol x symbol -> stream(tblock) Example : query (strassen feed toblocks[1] {a} strassen feed toblocks[1] {b} cspatialjoin[GeoData_a, GeoData_b] count) = (strassen feed strassen feed {b} itSpatialJoin[GeoData, GeoData_b] count) Result : TRUE