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What does map transformation do? Provide an example.

Question Posted / archit vishnoi


What does map transformation do? Provide an example...

Answer / Manoj Kumar Maurya

Map Transformation is a basic transformation in Apache Spark that applies a user-defined function to each element of the data frame or RDD. Here's an example using a simple map operation: nn`data = sparkSession.createDataFrame([(1, 2), (3, 4), (5, 6)]).toDF("a", "b")ndata.map(lambda row: (row["a"] + row["b"],)).show()`

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