PySpark provides map(), mapPartitions() to loop/iterate through rows in RDD/DataFrame to perform the complex transformations, and these two return the same number of rows/records as in the original DataFrame but,…
Let's see how to convert/extract the Spark DataFrame column as a List (Scala/Java Collection), there are multiple ways to convert this, I will explain most of them with examples. Remember…
Spark collect() and collectAsList() are action operation that is used to retrieve all the elements of the RDD/DataFrame/Dataset (from all nodes) to the driver node. We should use the collect()…
PySpark RDD/DataFrame collect() is an action operation that is used to retrieve all the elements of the dataset (from all nodes) to the driver node. We should use the collect()…
