Apache Pig - RANDOM() - Apache Pig

What is Apache Pig - RANDOM()?

The RANDOM() function is used to get a pseudo random number (type double) greater than or equal to 0.0 and less than 1.0.

Example

Assume that there is a file named math.txt in the HDFS directory /pig_data/. This file contains integer and floating point values as shown below.
math.txt
And, we have loaded this file into Pig with a relation named math_data as shown below.
Let us now generate random values of the contents of the math.txt file using RANDOM() function as shown below.
The above statement stores the result in the relation named random_data. Verify the contents of the relation using the Dump operator as shown below.

All rights reserved © 2018 Wisdom IT Services India Pvt. Ltd DMCA.com Protection Status

Apache Pig Topics