How to Add Index To Spark Dataframe : zipWithIndex | Scala | Intellij Idea
This is a step by step tutorial on how to use Spark zipWithIndex method to add index to a Spark dataframe. This video explains how you can read a csv file as a dataframe, convert the dataframe to rdd and apply a map method to convert each record to array which is then converted to a dataframe with additional column, the index column.
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