How to add/drop/rename column in Spark Dataframe
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When we ingest data from source to Hadoop data lake, we used to add some additional columns with the existing data source. These columns basically help to validate and analyze the data. So, in this post, we will walk through how we can add some additional columns with the source data.
In addition to this, we will also check how to drop an existing column and rename the column in the spark data frame.
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