Map and FlatMap

Shruti Dhage Shruti Dhage

Shruti Dhage

Senior Software Engineer@epam cloud and databricks specialist

发布日期: 2024年6月14日
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What is the difference between map and flatmap in Spark?

Visual Example:

Using?map:

Input RDD:?[1, 2, 3]

Transformation:?x => [x, x+1]

Output RDD:?[[1, 2], [2, 3], [3, 4]]

Using?flatMap:

Input RDD:?[1, 2, 3]

Transformation:?x => [x, x+1]

Output RDD:?[1, 2, 2, 3, 3, 4]

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