How to extract values from dictionary column in pyspark dataframe | pyspark get value by key | Colab
This video explains in details how to extract values from a dictionary type column within pyspark dataframe. A dataframe can hold different spark types of values, that can be extracted from df.printSchema() and you can see the column types.
So if a column has values trapped in a dictionary it becomes hard to perform transformations on such data. Hence we need to get values by key outnof that column and perform various transformations on newly created column.
This video tutorial is specially for data engineering professionals who handles complex data with different types of columns that halds values like arraytype, maptype and element.