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PySpark RDD | first method

schedule Aug 12, 2023
Last updated
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PySpark
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PySpark RDD's first(~) method returns the first element of the RDD.

Parameters

This method does not take in any parameters.

Return Value

The type will be that of the first element of the RDD.

Examples

We create a RDD using the parallelize(~) method:

rdd = sc.parallelize([2, 3, 4])
rdd
ParallelCollectionRDD[61] at readRDDFromInputStream at PythonRDD.scala:413

Fetching the first element of a RDD

To fetch the first element in the RDD, use the first() method:

rdd.first()
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Published by Isshin Inada
Edited by 0 others
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