Fixed a bug when running KNN with heap file
Fixed a bug when running KNN with heap file

aseldawy/spatialhadoop,aseldawy/spatialhadoop,aseldawy/spatialhadoop,aseldawy/spatialhadoop,aseldawy/spatialhadoop,aseldawy/spatialhadoop,aseldawy/spatialhadoop,aseldawy/spatialhadoop,aseldawy/spatialhadoop