Spark – Define DataFrame with Nested Array

Problem: How to define Spark DataFrame using the nested array column (Array of Array)? Solution: Using StructType we can define an Array of Array (Nested Array) ArrayType(ArrayType(StringType)) DataFrame column using Scala example. The below example creates a DataFrame with a nested array column. From below example column "subjects" is an…

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PySpark – explode nested array into rows

Problem: How to explode & flatten nested array (Array of Array) DataFrame columns into rows using PySpark. Solution: PySpark explode function can be used to explode an Array of Array (nested Array) ArrayType(ArrayType(StringType)) columns to rows on PySpark DataFrame using python example. Before we start, let’s create a DataFrame with a nested…

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Spark – explode Array of Array (nested array) to rows

Problem: How to explode & flatten the Array of Array (Nested Array) DataFrame columns into rows using Spark. Solution: Spark explode function can be used to explode an Array of Array (Nested Array) ArrayType(ArrayType(StringType)) columns to rows on Spark DataFrame using scala example. Before we start, let's create a DataFrame…

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