问题
How can I convert a pair RDD of the following type
joinResult
res16: org.apache.spark.api.java.JavaPairRDD[com.vividsolutions.jts.geom.Polygon,java.util.HashSet[com.vividsolutions.jts.geom.Polygon]] = org.apache.spark.api.java.JavaPairRDD@264b550
to a data frame? https://github.com/geoHeil/geoSparkScalaSample/blob/master/src/main/scala/myOrg/GeoSpark.scala#L72-L75
joinResult.toDF().show
will not work as well as
来源：https://stackoverflow.com/questions/42689512/spark-convert-pairrdd-to-data-frame