Add Number of days column to Date Column in same dataframe for Spark Scala App

Question

I have a dataframe df of columns (\"id\", \"current_date\", \"days\") and I am trying to add the the \"days\" to \"

Answer 1

No need to use an UDF, you can do it using an SQL expression:

val newDF = df.withColumn("new_date", expr("date_add(current_date,days)"))