Error while exploding a struct column in Spark

Question

I have a dataframe whose schema looks like this:

event: struct (nullable = true)
|    | event_category: string (nullable = true)
|    | event_name: string (n         


        

Answer 1

You can use explode in an array or map columns so you need to convert the properties struct to array and then apply the explode function as below

import org.apache.spark.sql.functions._
df_json.withColumn("event_properties", explode(array($"event.properties.*"))).show(false)

You should have your desired requirement