将RDD [（Long，Long）]转换为RDD [Row]

Question

How do I convert a RDD[(Long, Long)] to RDD[Row]?

I require the RDD[Row] to convert to a DataFrame. The closest I got to an answer is How to convert RDD[Row] to RDD[Vector] but I want to do the opposite.

Answer 1

Just apply schema to your RDD (ref: spark-sql-programming-guide )

case class MyObjectType(col1:Long, col2:Long)

val myRDD:RDD[Long, Long] = .........
val myDF = myRDD.map(r=>MyObjectType(r._1, r._2)).toDF

now if you want to run sql over this df, you can register it as temp table

myDF.createOrReplaceTempView("my_table")