Re: How do I flatten JSON blobs into a Data Frame using Spark/Spark SQL

[kant kodali]

This seem to work

import org.apache.spark.sql._
val rdd = df2.rdd.map { case Row(j: String) => j }
spark.read.json(rdd).show()

However I wonder if this any inefficiency here ? since I have to apply this
function for billion rows.