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Unwanted null values in UDF

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I am facing a strange situation in one of my mapping programs.

The graphical mapping looks like this:

Capture_1.JPG

 

When I do a display queue of the FIRST udf I can see the expected result

 

When I do a display queue in the next UDF which is taking the output of the FIRST UDF I can see some extra "null" values

Capture_2.JPG

 

 

In the subsequent UDF I see that all the output values are vanished and some "null" values are getting as an input to the target function

 

Capture_3.JPG

With this strange behaviour my mapping is failing and I am unable to understand how my output values are getting replaced with "null"

 

Any help will be appreciated

 

Sourabh


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