4. Databricks | Pyspark: Collect() function | #pyspark PART 04

Collect():
1) collect() is an action that returns the entire dataset in an Array to the Driver.
2) collect() is used to retrieve the action output when you have very small result set and calling collect() on an RDD/Dataframe with bigger result set causes out of memory as it returns the entire dataset (from all workers) to the driver hence we should avoid calling collect() on a larger dataset.

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