#rdd-transformations

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#spark
fromMedium
1 month ago
Scala

Map vs FlatMap in Spark with Scala: What Every Data Engineer Should Know

Map returns one output per input while flatMap can emit zero or many outputs, changing data size and execution behavior in Spark pipelines.
fromMedium
1 month ago
Software development

Map vs FlatMap in Spark with Scala: What Every Data Engineer Should Know

Choosing map versus flatMap in Spark/Scala critically changes data shape and can cause large performance or logic differences across distributed pipelines.
fromMedium
1 month ago
Software development

Map vs FlatMap in Spark with Scala: What Every Data Engineer Should Know

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