#alias and udf

[milindjagre]

Post 27 | HDPCD | Invoke a User Defined Function in Apache Pig

Invoking a User Defined Function in Apache Pig

Hello everyone, thanks for coming back to the last tutorial in the DATA TRANSFORMATION category of the HDPCD certification. We are going to pick-off things from the last tutorial, in which, we saw how to define an ALIAS to a function present in the JAR file. In this tutorial, we are going to see how to invoke/call that ALIAS to perform the desired operation.

Let us start then.

We are going to…

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[milindjagre]

Post 26 | HDPCD | Define an ALIAS for a User Defined Function

Define an alias for a User Defined Function

Hi, everyone. Thank you for returning again to this certification series.

In the last tutorial, we saw the process of registering the jar file in the Apache PIG session. This tutorial is an extension to the previous one and in this, we are going to see how to define an alias for the UDF present in that JAR file.

The important reason for assigning an alias for an UDF is that instead of using the…

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